The co-infection of corona and influenza viruses has emerged as a significant threat to global public health due to their shared modes of transmission and overlapping clinical symptoms.This article presents a novel ma...The co-infection of corona and influenza viruses has emerged as a significant threat to global public health due to their shared modes of transmission and overlapping clinical symptoms.This article presents a novel mathematical model that addresses the dynamics of this co-infection by extending the SEIR(Susceptible-Exposed-Infectious-Recovered)framework to incorporate treatment and hospitalization compartments.The population is divided into eight compartments,with infectious individuals further categorized into influenza infectious,corona infectious,and co-infection cases.The proposed mathematical model is constrained to adhere to fundamental epidemiological properties,such as non-negativity and boundedness within a feasible region.Additionally,the model is demonstrated to be well-posed with a unique solution.Equilibrium points,including the disease-free and endemic equilibria,are identified,and various properties related to these equilibrium points,such as the basic reproduction number,are determined.Local and global sensitivity analyses are performed to identify the parameters that highly influence disease dynamics and the reproduction number.Knowing the most influential parameters is crucial for understanding their impact on the co-infection’s spread and severity.Furthermore,an optimal control problem is defined to minimize disease transmission and to control strategy costs.The purpose of our study is to identify the most effective(optimal)control strategies for mitigating the spread of the co-infection with minimum cost of the controls.The results illustrate the effectiveness of the implemented control strategies in managing the co-infection’s impact on the population’s health.This mathematical modeling and control strategy framework provides valuable tools for understanding and combating the dual threat of corona and influenza co-infection,helping public health authorities and policymakers make informed decisions in the face of these intertwined epidemics.展开更多
Background: Mycoplasma pneumoniae (MP) is the primary causative agent of community-acquired pneumonia, which has increasingly become resistant to macrolides, complicating treatment regimens, especially with the co-inf...Background: Mycoplasma pneumoniae (MP) is the primary causative agent of community-acquired pneumonia, which has increasingly become resistant to macrolides, complicating treatment regimens, especially with the co-infection factor. Its worldwide prevalence has fluctuated due to the influence of the COVID-19 pandemic. The study investigated co-infection patterns in children diagnosed with Mycoplasma pneumoniae pneumonia (MPP). Methods: From June 2022 to December 2023, we retrospectively analyzed the clinical data for hospitalized children with Mycoplasma pneumoniae pneumonia in Wuhan, China. We collected data on age, sex, clinical information, and pathogenic results. We also collected sputum or bronchoalveolar lavage fluid (BALF) samples to test respiratory pathogens and macrolide resistance using targeted microbial next-generation sequencing (tNGS). We analyzed the data using SPSS. Results: The study involved 417 patients diagnosed with MPP, of whom 86.33% had co-infections. Co-infections were notably linked to lobar pneumonia, prominent imaging shadows and higher macrolide resistance rate. Key bacterial pathogens were Streptococcus pneumoniae, Haemophilus influenzae, Staphylococcus aureus, rhinoviruses, and human adenoviruses (HADV). In MPP cases, Candida albicans was the fungal pathogen related to co-infections. The co-infection with HADV and human bocavirus 1 (HBoV1) correlated with prolonged fever, whereas Bordetella pertussis was linked to prolonged cough. In contrast, Candida albicans exhibited a weaker association with diffuse large-area infiltration on chest imaging, and its co-infection was less likely to result in severe disease. Conclusion: These results offer valuable insight into Mycoplasma pneumoniae pneumonia in children, highlighting the impact of co-infections on the disease’s clinical outcomes.展开更多
The aim of this study was to assess the seroprevalence of viral hepatitis B and C and co-infection with HIV among volunteer blood donors at the blood sampling and distribution depot (BSDD) in Ouahigouya. Patients and ...The aim of this study was to assess the seroprevalence of viral hepatitis B and C and co-infection with HIV among volunteer blood donors at the blood sampling and distribution depot (BSDD) in Ouahigouya. Patients and methods: Our study population consisted of all volunteer blood donors who had donated during a 2-year period from 1 January 2019 to 31 December 2020. Samples were taken from patients with no contraindications and serological tests were performed using ELISA tests. HBsAg, HCV-Ac and HIV serology were tested. All samples reactive for HIV, HBV and HCV were retested for confirmation using a second enzyme-linked immunosorbent assay. A result was considered positive if both the first and second tests were positive. Results: In two years, the Ouahigouya BSDD recorded 9726 donations, including 7983 new donors and 1743 former donors. The average age of donors was 25.59 years, with a sex ratio of 3.4. The seroprevalence of HBV, HCV and HIV was 7.31%, 3.10% and 2.12% respectively. HBV-HCV co-infection was found in 0.32% of cases, HIV-HBV, HIV-HCV, and HIV-HBV-HCV co-infection were found in 0.25%, 0.09% and 0.04% respectively. Conclusion: The seroprevalence of viral hepatitis B and C remains high among volunteer blood donors in Ouahigouya, although a decline in seroprevalence appears to be on the horizon.展开更多
Microbial co-infections are another primary concern in patients with coronavirus disease 2019(COVID-19),yet it is an untouched area among researchers.Preliminary data and systematic reviews only show the type of patho...Microbial co-infections are another primary concern in patients with coronavirus disease 2019(COVID-19),yet it is an untouched area among researchers.Preliminary data and systematic reviews only show the type of pathogens responsible for that,but its pathophysiology is still unknown.Studies show that these microbial co-infections are hospital-acquired/nosocomial infections,and patients admitted to intensive care units with invasive mechanical ventilation are highly susceptible to it.Patients with COVID-19 had elevated inflammatory cytokines and a weakened cell-mediated immune response,with lower CD4+T and CD8+T cell counts,indicating vulnerability to various co-infections.Despite this,there are only a few studies that recommend the management of coinfections.展开更多
[Objective] The aim of this study was to identify swine diseases caused by CSFV,PRRSV and PCV2 and thus to analyze its pathogeny chracteristics.[Method] The tissues and viscera of the diseased swine were collected fro...[Objective] The aim of this study was to identify swine diseases caused by CSFV,PRRSV and PCV2 and thus to analyze its pathogeny chracteristics.[Method] The tissues and viscera of the diseased swine were collected from Xiangtan of Hunan(Code of HN/XT)to extract DNA and RNA for PCR amplification and sequencing.Meanwhile,the virulent strains were isolated and identified by cell separation technology.[Result] The sequencing analysis results showed that the amino acid homology between CSFV,PRRSV,PCV2 and sequen...展开更多
Liver transplantation for human immunodeficiency virus(HIV)positive patients with viral hepatitis co-infection is increasingly offered in many North American and European liver transplant centers.Prior studies have de...Liver transplantation for human immunodeficiency virus(HIV)positive patients with viral hepatitis co-infection is increasingly offered in many North American and European liver transplant centers.Prior studies have demonstrated acceptable post-transplant outcomes and no increased risk of HIV complications in patients coinfected with hepatitis B virus(HBV).However,liver transplantation in HIV positive patients with hepatitis C virus(HCV)has poorer outcomes overall,requiring careful selection of candidates.This review aims to summarize the published literature on outcomes after transplant in HIV patients with HBV or HCV related end-stage liver disease and recommendations for management.In particular the pre-transplant factors impacting outcomes in HCV/HIV co-infected candidates and importance of multidisciplinary management will be discussed.展开更多
Background: Human immunodeficiency virus and hepatitis B and C viruses are endemic in sub- Saharan African countries including Nigeria. Researchers have studied the burden of co-infection of HIV with hepatitis B and h...Background: Human immunodeficiency virus and hepatitis B and C viruses are endemic in sub- Saharan African countries including Nigeria. Researchers have studied the burden of co-infection of HIV with hepatitis B and hepatitis C but the risk factors and clinical presentation have not been much addressed especially in children. Methodology: This was a prospective cross sectional study that determined the prevalence, risk factors, clinical features, baseline CD4<sup>+</sup> count, CD4<sup>+</sup> percentage, and alanine aminotransferase (ALT) of newly diagnosed, HAART na?ve HIV co-infection among children who were managed at a Tertiary Hospital in Ilorin, Nigeria. Result: Of the 60 HIV- infected children recruited, 11.7% had HIV co-infection with HBV or HCV. Children with co-infec- tions (mean age 8.43 ± 2.37 years) were significantly older than their HIV mono-infected counterparts (mean age 5.25 ± 3.96 years) (p = 0.011). There was no significant difference between HIV monoinfection and HIV co-infection with respect to gender (p = 0.758), ethnicity (p = 0.707), religion of parents (p = 0.436), family type (p = 0.184), social class (p = 0.535), previous transfusion (p = 0.053), scarification (p = 0.612), female genital mutilation (p = 0.778), and sharing of clippers (p = 0.806). The mean BMI, immunological staging (p = 0.535), baseline ALT (p = 0.940), and mean baseline CD4<sup>+</sup> count (p = 0.928) were comparable. However, the body mass index of HIV co-infec- ted children decreased with age up till age 10 years. Conclusion: There were no risk factors, nor clinical features predictive of co-infection identified in this study. Co-infection did not negatively impact baseline, CD4<sup>+</sup> count and ALT.展开更多
A non-linear HIV-TB co-infection has been formulated and analyzed. The positivity and invariant region has been established. The disease free equilibrium and its stability has been determined. The local stability was ...A non-linear HIV-TB co-infection has been formulated and analyzed. The positivity and invariant region has been established. The disease free equilibrium and its stability has been determined. The local stability was determined and found to be stable under given conditions. The basic reproduction number was obtained and according to findings, co-infection diminishes when this number is less than unity, and persists when the number is greater than unity. The global stability of the endemic equilibrium was calculated. The impact of HIV on TB was established as well as the impact of TB on HIV. Numerical solution was also done and the findings indicate that when the rate of HIV treatment increases the latent TB increases while the co-infected population decreases. When the rate of HIV treatment decreases the latent TB population decreases and the co-infected population increases. Encouraging communities to prioritize the consistent treatment of HIV infected individuals must be emphasized in order to reduce the scourge of HIV-TB co-infection.展开更多
AIM： To determine the prevalence of hepatitis B and C virus infections in human immunodeficiency virus （HIV） -positive patients at a tertiary care hospital in New Delhi, India. METHODS： Serum samples from 451 HIV ...AIM： To determine the prevalence of hepatitis B and C virus infections in human immunodeficiency virus （HIV） -positive patients at a tertiary care hospital in New Delhi, India. METHODS： Serum samples from 451 HIV positive patients were analyzed for HBsAg and HCV antibodies during three years （Jan 2003-Dec 2005）. The control group comprised of apparently healthy bone-marrow and renal donors. RESULTS： The study population comprised essentially of heterosexually transmitted HIV infection. The prevalence Fate of HBsAg in this population was 5.3% as compared to 1.4% in apparently healthy donors （P 〈 0.001）. Though prevalence of HCV co-infection （2.43%） was lower than HBV in this group of HIV positive patients, the prevalence was significantly higher （P 〈 0.05） than controls （0.7%）. Triple infection of HIV, HBV and HCV was not detected in any patient. CONCLUSION： Our study shows a significantly high prevalence of hepatitis virus infections in HIV infected patients. Hepatitis viruses in HIV may lead to faster progression to liver cirrhosis and a higher risk of antiretroviral therapy induced hepatotoxicity. Therefore, it would be advisable to detect hepatitis virus coinfections in these patients at the earliest.展开更多
Viral infections contribute to approximately 12%of cancers worldwide,with the vast majority occurring in developing countries and areas.Two DNA viruses,Epstein-Barr virus(EBV)and human papillomavirus(HPV),are associat...Viral infections contribute to approximately 12%of cancers worldwide,with the vast majority occurring in developing countries and areas.Two DNA viruses,Epstein-Barr virus(EBV)and human papillomavirus(HPV),are associated with38%of all virus-associated cancers.The probability of one patient infected with these two distinct types of viruses is increasing.Here,we summarize the co-infection of EBV and HPV in human malignancies and address the possible mechanisms for the co-infection of EBV and HPV during tumorigenesis.展开更多
Human immunodeficiency virus (HIV) is the infectious agent causing acquired immu-nodeficiency syndrome (AIDS),a deadliest scourge of human society. Hepatitis C virus (HCV) is a major causative agent of chronic liver d...Human immunodeficiency virus (HIV) is the infectious agent causing acquired immu-nodeficiency syndrome (AIDS),a deadliest scourge of human society. Hepatitis C virus (HCV) is a major causative agent of chronic liver disease and infects an estimated 170 million people worldwide,resulting in a serious public health burden. Due to shared routes of transmission,co-infection with HIV and HCV has become common among individuals who had high risks of blood exposures. Among hemophiliacs the co-infection rate accounts for 85%; while among injection drug users (IDU) the rate can be as high as 90%. HIV can accelerate the progression of HCV-related liver disease,particularly when immunodeficiency has developed. Although the effect of HCV on HIV infection is controversial,most studies showed an increase in mortality due to liver disease. HCV may act as a direct cofactor to fasten the progression of AIDS and decrease the tolerance of highly active antiretroviral therapy (HARRT). Conversely,HAART-related hepatotoxicity may enhance the progression of liver fibrosis. Due to above complications,co-infection with HCV and HIV-1 has imposed a critical challenge in the management of these patients. In this review,we focus on the epidemiology and transmission of HIV and HCV,the impact of the two viruses on each other,and their treatment.展开更多
Coronavirus disease 2019(COVID-19)occurs in the influenza season and has become a global pandemic.The present study aimed to examine severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)co-infection with influen...Coronavirus disease 2019(COVID-19)occurs in the influenza season and has become a global pandemic.The present study aimed to examine severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)co-infection with influenza A virus(IAV)in an attempt to provide clues for the antiviral interventions of co-infected patients.We described two patients who were co-infected with SARS-CoV-2 and IAV treated at Wuhan Union Hospital,China.In addition,we performed a review in PubMed,Web of Science and CNKI(from January 1 up to November 1,2020)with combinations of the following key words:“COVID-19,SARS-COV-2,influenza A and co-infection”.A total of 28 co-infected patients were enrolled in the analysis.Of the 28 patients,the median age was 54.5 years(IQR,34.25–67.5)and 14 cases(50.0%)were classified as severe types.The most common symptoms were fever(85.71%),cough(82.14%)and dyspnea(60.71%).Sixteen patients had lymphocytopenia on admission and 23 patients exhibited abnormal radiological changes.The median time from symptom onset to hospital admission was 4 days(IQR,3–6),and the median time of hospital stay was 14 days(IQR,8.5–16.75).In conclusion,patients with SARSCOV-2 and IAV co-infection were similar to those infected with SARS-COV-2 alone in symptoms and radiological images.SARS-COV-2 co-infection with IAV could lead to more severe clinical condition but did not experience longer hospital stay compared with patients infected with SARSCOV-2 alone.展开更多
AIM:To determine the seroprevalence of hepatitis C virus(HCV) and its co-infection with hepatitis B virus(HBV),hepatitis delta agent(HDV) and human immunodeficiency virus(HIV) among liver disease patients of south Tam...AIM:To determine the seroprevalence of hepatitis C virus(HCV) and its co-infection with hepatitis B virus(HBV),hepatitis delta agent(HDV) and human immunodeficiency virus(HIV) among liver disease patients of south Tamil Nadu. METHODS:A total of 1012 samples comprising 512 clinically diagnosed cases of liver disease patients and 500 apparently healthy age and sex matched individuals were screened for Hepatitis C virus(anti HCV and HCV RNA) ,Hepatitis B virus(HBsAg),Hepatitis delta agent(anti HDV) and Human immuno virus(antibodies to HIV-1 and HIV-2) using commercially available enzyme linked immunosorbent assay kits.HCV RNA wasdetected by RT-PCR.Liver function tests like ALT,AST,GGT,ALP,bilirubin and albumin were also studied. RESULTS:The seroprevalence of HCV was found to be 5.6%among liver disease patients by ELISA.27/512,49/512 and 12/512 patients were positive for HIV,HBV &HDV respectively.Co-infection of HCV&HBV was found in 8 patients,with 6 for HCV&HIV and 4 for HCV,HBV&HIV co-infections.Sex-wise analysis showed that HIV,HCV&HBV and HCV&HIV co-infection was high among females whereas for HBV it was high in males. The mean ALT and AST in HCV positive cases were 42.1±8.3 and 49±10.1.In people co-infected with HCV&HBV or HCV&HIV or HCV,HBV&HIV the mean ALT of 58.0±03.16,56.78±4.401 and 64.37±4.01 respectively. CONCLUSION:We strongly recommend routine test of the blood for HCV in addition to HBV and HIV.We also recommend individualized counseling to identify those at risk and testing for those who want it.Improved surveillance and periodic epidemiological studies will have to be undertaken to monitor and prevent these blood-borne viruses.展开更多
AIM： To investigate the features of various blood- borne virus infections and co-infection in intravenous drug users （IDUs）, and to examine the correlation of T lymphocyte subsets with virus co-infection. METHODS：...AIM： To investigate the features of various blood- borne virus infections and co-infection in intravenous drug users （IDUs）, and to examine the correlation of T lymphocyte subsets with virus co-infection. METHODS： Four hundred and six IDUs without any clinical manifestation of hepatitis and 102 healthy persons were enrolled in this study. HBV-DNA and HCV-RNA were detected by fluorescence quantitative PCR. HBsAg, HBeAg, anti-HBc, anti-HCV, HDV-Ag, anti-HGV, anti-HIV, and HCMV-IgM were assayed by enzyme-linked immunosorbent assay （ELISA） and immunochromatographic tests. The levels of Th1 and Th2 cytokines were measured by ELISA and radioactive immune assay （RIA）. The T lymphocyte subpopulation was detected by using fluorescence immunoassay. The similar indices taken from the healthy persons served as controls. RESULTS： The viral infection rate among IDUs was 36.45% for HBV, 69.7% for HCV, 47.3% for HIV, 2.22% for HDV, 1.97% for HGV, and 3.45% for HCMV. The co- infection rate of blood-borne virus was detected in 255 of 406 （62.81%） IDUs. More than 80% （161/192） of subjects infected with HIV were co-infected with the other viruses, such as HBV, HCV. In contrast, among the controls, the infection rate was 17.65% for HBV and 0% for the other viruses. Our investigation showed that there was a profound decrease in the proportion of CD4/CD8 and the percentage of CD3 and CD4, but not in the percentage of CD8. The levels of PHA-induced cytokines （IFN-γ and IL-4） and serum IL-2 were obviously decreased in IDUs. On the other hand, the level of serum IL-4 was increased. The level of IFN-γ and the percentage of CD4 were continuously decreased when the IDUs were infected with HIV or HIV co-infection. IDUs with HIV and HBV co-infection was 15.1% （29/192）. Of those 29 IDU with HIV and HBV co-infection, 51.72% （15/29） and 37.93% （11/29） were HBV-DNA-positive and HBeAg-positive, respectively. But, among IDUs without HIV infection, only 1.68% （2/119） of cases were HBV- DNA-positive.CONCLUSION： HCV, HBV and HIV infections are common in this population of IDU, leading to a high incidence of impaired Thl cytokine levels and CD4 lymphocyte. IDUs with HIV and HBV/HCV co-infection have lower expression of Th1 cytokine with enhancement of the Th2 response. HIV may be causing HBV replication by decreasing Thl function.展开更多
Mycobacterium tuberculosis(M.tb) and human immunodeficiency virus(HIV) co-infection has become a public health issue worldwide. Up to now, there have been many unresolved issues either in the clinical diagnosis and tr...Mycobacterium tuberculosis(M.tb) and human immunodeficiency virus(HIV) co-infection has become a public health issue worldwide. Up to now, there have been many unresolved issues either in the clinical diagnosis and treatment of M.tb/HIV coinfection or in the basic understanding of the mechanisms for the impairments to the immune system by interactions of these two pathogens. One important reason for these unsolved issues is the lack of appropriate animal models for the study of M.tb/HIV coinfection. This paper reviews the recent development of research on the animal models of M.tb/HIV co-infection, with a focus on the non-human primate models.展开更多
Rationale: Malaria and dengue are the most prevalent vector-borne diseases in tropical countries. Plasmodium parasite and dengue virus(DENV) concurrent infection is possible and often under-recognized in geographical ...Rationale: Malaria and dengue are the most prevalent vector-borne diseases in tropical countries. Plasmodium parasite and dengue virus(DENV) concurrent infection is possible and often under-recognized in geographical areas where these infections are both endemic.Patients concern and diagnosis: We describe the first two cases of Plasmodium falciparum and DENV-3 co-infection in travelers returning to northeastern Italy from Burkina Faso during 2013-2014.Interventions: Malaria infection in both patients was treated with mefloquine. Due to the persistence of symptoms despite of the antimalaria treatment, dengue was also investigated;the treatment of dengue was symptomatic.Outcomes: The patients were discharged in good general condition.Lessons: The need for surveillance of potential malaria and dengue co-infection in travelers returning to Europe from endemic areas is highlighted, as infection with Plasmodium does not exclude arboviral co-infection.展开更多
Objective:To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi outbreak.Methods:Throat swabs were collected from 54 pediatric patients with confirmed measles,and mo...Objective:To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi outbreak.Methods:Throat swabs were collected from 54 pediatric patients with confirmed measles,and molecular diagnostics performed for 10 additional viral respiratory pathogens(Influenza A/H1N1pdm09;A/H3N2 and influenza B;Parainfluenza 1,2,3;Respiratory Synctial Virus,RSV;human Metapneumovirus,hM PV;Adenovirus and Picornavirus).Results:Twenty-one cases(38.9%) showed evidence of infection with other respiratory viruses:15 samples contained measles plus one additional virus,and 6 samples contained measles plus 2 additional viruses.Adenovirus was detected as a predominant cause of co-infections(13 cases;24.1%),followed by RSV(6 cases;11.1%),A/H1N1pdm09(3 cases;5.6%),PIV3(3 cases;3.7%),Rhinovirus(3 cases;3.7%) and hM PV(1 case;1.96%).Conclusions:Viral co-infections identified from pediatric measles cases may have contributed to increased disease severity and high rate of fatal outcomes.Optimal treatment of measles cases may require control of multiple viral respiratory pathogens.展开更多
Classical swine fever virus （CSFV） and porcine reproductive and respiratory syndrome virus （PRRSV） have caused immense economic loss in the pig industry and are considered to be the two most important infectious d...Classical swine fever virus （CSFV） and porcine reproductive and respiratory syndrome virus （PRRSV） have caused immense economic loss in the pig industry and are considered to be the two most important infectious diseases of pigs in the world A multiplex reverse transcription polymerase chain reaction （multiplex RT-PCR） was developed for CSFV and PRRSV co-infections or infections, respectively. A set of two pairs of primer was designed based on the sequence of nonstructural protein NS54B of CSFV and ORF7 gene of PRRSV. The diagnostic accuracy of multiplex RT-PCR assay was evaluated by using 56 field clinical samples by multiplex RT-PCR, single RT-PCR and sequence analysis; and the specificity of multiplex PCR was verified by using constructed plasmids containing the specific viral target fragments of PRRSV and CSFV, respectively. The results indicated that this assay could reliably differentiate PRRSV and CSFV in co-infection samples. The multiplex RT-PCR developed in this study might provide a new avenue to the rapid the detection of CSFV and PRRSV in one reaction.展开更多
Background： Unhygienic blood collection in the early 1990s led to blood-borne infections in Central China. This study aimed to estimate human immunodeficiency virus （HIV） co-infection with hepatitis C and B viruses...Background： Unhygienic blood collection in the early 1990s led to blood-borne infections in Central China. This study aimed to estimate human immunodeficiency virus （HIV） co-infection with hepatitis C and B viruses （HCV and HBV） and their risk factors in a rural area of Shanxi Province with a history of commercial blood donation. Methods： A cross-sectional study was conducted in 2004. All adult residents in the target area were invited to participate in the study. Face-to-face interviews were completed and blood specimens were tested for HIV, HCV, and HBV surface antigen （HBsAg）. Results： Prevalence rates of HIV, HCV, and HBsAg were 1.3% （40/3 062）, 12.7% （389/3 062）, and 3.5% （103/2982）, respectively. Of the 40 HIV-positive specimens, 85% were HCV positive and 2.5% were HBsAg positive. The history of commercial blood donation was positively associated with HIV, HCV, and HIV/HCV co-infections, but was negatively associated with HBsAg seropositivity. Migration for employment in the last 5 years was positively related to HIV, HBsAg, and HIV/HCV co-infections. Univariate logistic analysis showed that illegal drug use, number of sex partners, extramarital sex behavior, commercial sex behavior, and condom use rate were not related to anti-HIV, anti-HCV, HBsAg seropositivity or their co-infections. Conclusion： The history of commercial blood donation was the main risk factor for HIV, HCV, and HIV/HCV co-infections in this former commercial blood donation area. HIV and HCV prevention and treatment interventions are important in this area.展开更多
BACKGROUND The coronavirus disease 2019(COVID-19)pandemic presents a significant challenge to the medical profession,increasing in the presence of microbial coinfection.Bacterial and Fungal co-infections increase the ...BACKGROUND The coronavirus disease 2019(COVID-19)pandemic presents a significant challenge to the medical profession,increasing in the presence of microbial coinfection.Bacterial and Fungal co-infections increase the risk of morbidity and mortality in patients with COVID-19.AIM To study the bacterial profile in patients with COVID-19 who needed admission to receive treatment in the main centres concerned with managing COVID-19 disease in the Kingdom of Bahrain.METHODS The study was a retrospective observational analysis of the bacterial profile and the bacterial resistance in patients with confirmed COVID-19 disease who needed admission to receive treatment in the main centres assigned to manage patients with COVID-19 disease in the Kingdom of Bahrain from February to October 2020.We used the electronic patients’records and the microbiology laboratory data to identify patients’demographics,clinical data,microbial profile,hospital or community-acquired,and the outcomes.RESULTS The study included 1380 patients admitted with confirmed COVID-19 disease during the study period.51%were admitted from February to June,and 49%were admitted from July to October 2020,with a recurrence rate was 0.36%.There was a significant increase in bacterial and fungal co-infection in the second period compared to the first period.The most common isolated organisms were the gram-negative bacteria(mainly Klebsiella pneumoniae,Pseudomonas aeruginosa,multi-drug resistant Acinetobacter baumannii,and Escherichia coli),the grampositive bacteria(mainly coagulase negative Staphylococci,Enterococcus faecium,Enterococcus faecalis,Staphylococcus aureus)and fungaemia(Candida galabrata,Candida tropicalis,Candida albicans,Aspergillus fumigatus,Candida parapsilosis,Aspergillus niger).The hospital-acquired infection formed 73.8%,61.6%,100%gram-negative,gram-positive and fungaemia.Most of the hospital-acquired infection occurred in the second period with a higher death rate than communityacquired infections.CONCLUSION Bacterial and fungal co-infections in patients admitted with confirmed COVID-19 disease pose higher morbidity and mortality risks than those without coinfections.We should perform every effort to minimize these risks.展开更多
基金supported by NASA Oklahoma Established Program to Stimulate Competitive Research(EPSCoR)Infrastructure Development,“Machine Learning Ocean World Biosignature Detection from Mass Spec”(PI:BrettMcKinney),Grant No.80NSSC24M0109Tandy School of Computer Science,University of Tulsa.
文摘The co-infection of corona and influenza viruses has emerged as a significant threat to global public health due to their shared modes of transmission and overlapping clinical symptoms.This article presents a novel mathematical model that addresses the dynamics of this co-infection by extending the SEIR(Susceptible-Exposed-Infectious-Recovered)framework to incorporate treatment and hospitalization compartments.The population is divided into eight compartments,with infectious individuals further categorized into influenza infectious,corona infectious,and co-infection cases.The proposed mathematical model is constrained to adhere to fundamental epidemiological properties,such as non-negativity and boundedness within a feasible region.Additionally,the model is demonstrated to be well-posed with a unique solution.Equilibrium points,including the disease-free and endemic equilibria,are identified,and various properties related to these equilibrium points,such as the basic reproduction number,are determined.Local and global sensitivity analyses are performed to identify the parameters that highly influence disease dynamics and the reproduction number.Knowing the most influential parameters is crucial for understanding their impact on the co-infection’s spread and severity.Furthermore,an optimal control problem is defined to minimize disease transmission and to control strategy costs.The purpose of our study is to identify the most effective(optimal)control strategies for mitigating the spread of the co-infection with minimum cost of the controls.The results illustrate the effectiveness of the implemented control strategies in managing the co-infection’s impact on the population’s health.This mathematical modeling and control strategy framework provides valuable tools for understanding and combating the dual threat of corona and influenza co-infection,helping public health authorities and policymakers make informed decisions in the face of these intertwined epidemics.
文摘Background: Mycoplasma pneumoniae (MP) is the primary causative agent of community-acquired pneumonia, which has increasingly become resistant to macrolides, complicating treatment regimens, especially with the co-infection factor. Its worldwide prevalence has fluctuated due to the influence of the COVID-19 pandemic. The study investigated co-infection patterns in children diagnosed with Mycoplasma pneumoniae pneumonia (MPP). Methods: From June 2022 to December 2023, we retrospectively analyzed the clinical data for hospitalized children with Mycoplasma pneumoniae pneumonia in Wuhan, China. We collected data on age, sex, clinical information, and pathogenic results. We also collected sputum or bronchoalveolar lavage fluid (BALF) samples to test respiratory pathogens and macrolide resistance using targeted microbial next-generation sequencing (tNGS). We analyzed the data using SPSS. Results: The study involved 417 patients diagnosed with MPP, of whom 86.33% had co-infections. Co-infections were notably linked to lobar pneumonia, prominent imaging shadows and higher macrolide resistance rate. Key bacterial pathogens were Streptococcus pneumoniae, Haemophilus influenzae, Staphylococcus aureus, rhinoviruses, and human adenoviruses (HADV). In MPP cases, Candida albicans was the fungal pathogen related to co-infections. The co-infection with HADV and human bocavirus 1 (HBoV1) correlated with prolonged fever, whereas Bordetella pertussis was linked to prolonged cough. In contrast, Candida albicans exhibited a weaker association with diffuse large-area infiltration on chest imaging, and its co-infection was less likely to result in severe disease. Conclusion: These results offer valuable insight into Mycoplasma pneumoniae pneumonia in children, highlighting the impact of co-infections on the disease’s clinical outcomes.
文摘The aim of this study was to assess the seroprevalence of viral hepatitis B and C and co-infection with HIV among volunteer blood donors at the blood sampling and distribution depot (BSDD) in Ouahigouya. Patients and methods: Our study population consisted of all volunteer blood donors who had donated during a 2-year period from 1 January 2019 to 31 December 2020. Samples were taken from patients with no contraindications and serological tests were performed using ELISA tests. HBsAg, HCV-Ac and HIV serology were tested. All samples reactive for HIV, HBV and HCV were retested for confirmation using a second enzyme-linked immunosorbent assay. A result was considered positive if both the first and second tests were positive. Results: In two years, the Ouahigouya BSDD recorded 9726 donations, including 7983 new donors and 1743 former donors. The average age of donors was 25.59 years, with a sex ratio of 3.4. The seroprevalence of HBV, HCV and HIV was 7.31%, 3.10% and 2.12% respectively. HBV-HCV co-infection was found in 0.32% of cases, HIV-HBV, HIV-HCV, and HIV-HBV-HCV co-infection were found in 0.25%, 0.09% and 0.04% respectively. Conclusion: The seroprevalence of viral hepatitis B and C remains high among volunteer blood donors in Ouahigouya, although a decline in seroprevalence appears to be on the horizon.
文摘Microbial co-infections are another primary concern in patients with coronavirus disease 2019(COVID-19),yet it is an untouched area among researchers.Preliminary data and systematic reviews only show the type of pathogens responsible for that,but its pathophysiology is still unknown.Studies show that these microbial co-infections are hospital-acquired/nosocomial infections,and patients admitted to intensive care units with invasive mechanical ventilation are highly susceptible to it.Patients with COVID-19 had elevated inflammatory cytokines and a weakened cell-mediated immune response,with lower CD4+T and CD8+T cell counts,indicating vulnerability to various co-infections.Despite this,there are only a few studies that recommend the management of coinfections.
基金Supported by National 863 High-tech Research Development Plan(2006AA241110)~~
文摘[Objective] The aim of this study was to identify swine diseases caused by CSFV,PRRSV and PCV2 and thus to analyze its pathogeny chracteristics.[Method] The tissues and viscera of the diseased swine were collected from Xiangtan of Hunan(Code of HN/XT)to extract DNA and RNA for PCR amplification and sequencing.Meanwhile,the virulent strains were isolated and identified by cell separation technology.[Result] The sequencing analysis results showed that the amino acid homology between CSFV,PRRSV,PCV2 and sequen...
文摘Liver transplantation for human immunodeficiency virus(HIV)positive patients with viral hepatitis co-infection is increasingly offered in many North American and European liver transplant centers.Prior studies have demonstrated acceptable post-transplant outcomes and no increased risk of HIV complications in patients coinfected with hepatitis B virus(HBV).However,liver transplantation in HIV positive patients with hepatitis C virus(HCV)has poorer outcomes overall,requiring careful selection of candidates.This review aims to summarize the published literature on outcomes after transplant in HIV patients with HBV or HCV related end-stage liver disease and recommendations for management.In particular the pre-transplant factors impacting outcomes in HCV/HIV co-infected candidates and importance of multidisciplinary management will be discussed.
文摘Background: Human immunodeficiency virus and hepatitis B and C viruses are endemic in sub- Saharan African countries including Nigeria. Researchers have studied the burden of co-infection of HIV with hepatitis B and hepatitis C but the risk factors and clinical presentation have not been much addressed especially in children. Methodology: This was a prospective cross sectional study that determined the prevalence, risk factors, clinical features, baseline CD4<sup>+</sup> count, CD4<sup>+</sup> percentage, and alanine aminotransferase (ALT) of newly diagnosed, HAART na?ve HIV co-infection among children who were managed at a Tertiary Hospital in Ilorin, Nigeria. Result: Of the 60 HIV- infected children recruited, 11.7% had HIV co-infection with HBV or HCV. Children with co-infec- tions (mean age 8.43 ± 2.37 years) were significantly older than their HIV mono-infected counterparts (mean age 5.25 ± 3.96 years) (p = 0.011). There was no significant difference between HIV monoinfection and HIV co-infection with respect to gender (p = 0.758), ethnicity (p = 0.707), religion of parents (p = 0.436), family type (p = 0.184), social class (p = 0.535), previous transfusion (p = 0.053), scarification (p = 0.612), female genital mutilation (p = 0.778), and sharing of clippers (p = 0.806). The mean BMI, immunological staging (p = 0.535), baseline ALT (p = 0.940), and mean baseline CD4<sup>+</sup> count (p = 0.928) were comparable. However, the body mass index of HIV co-infec- ted children decreased with age up till age 10 years. Conclusion: There were no risk factors, nor clinical features predictive of co-infection identified in this study. Co-infection did not negatively impact baseline, CD4<sup>+</sup> count and ALT.
文摘A non-linear HIV-TB co-infection has been formulated and analyzed. The positivity and invariant region has been established. The disease free equilibrium and its stability has been determined. The local stability was determined and found to be stable under given conditions. The basic reproduction number was obtained and according to findings, co-infection diminishes when this number is less than unity, and persists when the number is greater than unity. The global stability of the endemic equilibrium was calculated. The impact of HIV on TB was established as well as the impact of TB on HIV. Numerical solution was also done and the findings indicate that when the rate of HIV treatment increases the latent TB increases while the co-infected population decreases. When the rate of HIV treatment decreases the latent TB population decreases and the co-infected population increases. Encouraging communities to prioritize the consistent treatment of HIV infected individuals must be emphasized in order to reduce the scourge of HIV-TB co-infection.
文摘AIM： To determine the prevalence of hepatitis B and C virus infections in human immunodeficiency virus （HIV） -positive patients at a tertiary care hospital in New Delhi, India. METHODS： Serum samples from 451 HIV positive patients were analyzed for HBsAg and HCV antibodies during three years （Jan 2003-Dec 2005）. The control group comprised of apparently healthy bone-marrow and renal donors. RESULTS： The study population comprised essentially of heterosexually transmitted HIV infection. The prevalence Fate of HBsAg in this population was 5.3% as compared to 1.4% in apparently healthy donors （P 〈 0.001）. Though prevalence of HCV co-infection （2.43%） was lower than HBV in this group of HIV positive patients, the prevalence was significantly higher （P 〈 0.05） than controls （0.7%）. Triple infection of HIV, HBV and HCV was not detected in any patient. CONCLUSION： Our study shows a significantly high prevalence of hepatitis virus infections in HIV infected patients. Hepatitis viruses in HIV may lead to faster progression to liver cirrhosis and a higher risk of antiretroviral therapy induced hepatotoxicity. Therefore, it would be advisable to detect hepatitis virus coinfections in these patients at the earliest.
基金supported by the National Basic Research Program of China[2011CB504300(Y.T.Y.C.),2015CB553903(Y.T.)]+2 种基金the National High Technology Research and Development Program of China(863 Program)[2012AA02A501(Y.C.)]the National Natural Science Foundation of China[81,171,881 and81372427(Y.T.),81271763(S.L.),81,302,354(Y.S.)]the Hunan Natural Science Foundation of China[12JJ1013(Y.T.)]
文摘Viral infections contribute to approximately 12%of cancers worldwide,with the vast majority occurring in developing countries and areas.Two DNA viruses,Epstein-Barr virus(EBV)and human papillomavirus(HPV),are associated with38%of all virus-associated cancers.The probability of one patient infected with these two distinct types of viruses is increasing.Here,we summarize the co-infection of EBV and HPV in human malignancies and address the possible mechanisms for the co-infection of EBV and HPV during tumorigenesis.
文摘Human immunodeficiency virus (HIV) is the infectious agent causing acquired immu-nodeficiency syndrome (AIDS),a deadliest scourge of human society. Hepatitis C virus (HCV) is a major causative agent of chronic liver disease and infects an estimated 170 million people worldwide,resulting in a serious public health burden. Due to shared routes of transmission,co-infection with HIV and HCV has become common among individuals who had high risks of blood exposures. Among hemophiliacs the co-infection rate accounts for 85%; while among injection drug users (IDU) the rate can be as high as 90%. HIV can accelerate the progression of HCV-related liver disease,particularly when immunodeficiency has developed. Although the effect of HCV on HIV infection is controversial,most studies showed an increase in mortality due to liver disease. HCV may act as a direct cofactor to fasten the progression of AIDS and decrease the tolerance of highly active antiretroviral therapy (HARRT). Conversely,HAART-related hepatotoxicity may enhance the progression of liver fibrosis. Due to above complications,co-infection with HCV and HIV-1 has imposed a critical challenge in the management of these patients. In this review,we focus on the epidemiology and transmission of HIV and HCV,the impact of the two viruses on each other,and their treatment.
基金the National Natural Science Foundation of China(No.81973990,No.81900096,and No.81770090)Fundamental Research Funds for the Central Universities(No.2020kfyXGYJ030).
文摘Coronavirus disease 2019(COVID-19)occurs in the influenza season and has become a global pandemic.The present study aimed to examine severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)co-infection with influenza A virus(IAV)in an attempt to provide clues for the antiviral interventions of co-infected patients.We described two patients who were co-infected with SARS-CoV-2 and IAV treated at Wuhan Union Hospital,China.In addition,we performed a review in PubMed,Web of Science and CNKI(from January 1 up to November 1,2020)with combinations of the following key words:“COVID-19,SARS-COV-2,influenza A and co-infection”.A total of 28 co-infected patients were enrolled in the analysis.Of the 28 patients,the median age was 54.5 years(IQR,34.25–67.5)and 14 cases(50.0%)were classified as severe types.The most common symptoms were fever(85.71%),cough(82.14%)and dyspnea(60.71%).Sixteen patients had lymphocytopenia on admission and 23 patients exhibited abnormal radiological changes.The median time from symptom onset to hospital admission was 4 days(IQR,3–6),and the median time of hospital stay was 14 days(IQR,8.5–16.75).In conclusion,patients with SARSCOV-2 and IAV co-infection were similar to those infected with SARS-COV-2 alone in symptoms and radiological images.SARS-COV-2 co-infection with IAV could lead to more severe clinical condition but did not experience longer hospital stay compared with patients infected with SARSCOV-2 alone.
文摘AIM:To determine the seroprevalence of hepatitis C virus(HCV) and its co-infection with hepatitis B virus(HBV),hepatitis delta agent(HDV) and human immunodeficiency virus(HIV) among liver disease patients of south Tamil Nadu. METHODS:A total of 1012 samples comprising 512 clinically diagnosed cases of liver disease patients and 500 apparently healthy age and sex matched individuals were screened for Hepatitis C virus(anti HCV and HCV RNA) ,Hepatitis B virus(HBsAg),Hepatitis delta agent(anti HDV) and Human immuno virus(antibodies to HIV-1 and HIV-2) using commercially available enzyme linked immunosorbent assay kits.HCV RNA wasdetected by RT-PCR.Liver function tests like ALT,AST,GGT,ALP,bilirubin and albumin were also studied. RESULTS:The seroprevalence of HCV was found to be 5.6%among liver disease patients by ELISA.27/512,49/512 and 12/512 patients were positive for HIV,HBV &HDV respectively.Co-infection of HCV&HBV was found in 8 patients,with 6 for HCV&HIV and 4 for HCV,HBV&HIV co-infections.Sex-wise analysis showed that HIV,HCV&HBV and HCV&HIV co-infection was high among females whereas for HBV it was high in males. The mean ALT and AST in HCV positive cases were 42.1±8.3 and 49±10.1.In people co-infected with HCV&HBV or HCV&HIV or HCV,HBV&HIV the mean ALT of 58.0±03.16,56.78±4.401 and 64.37±4.01 respectively. CONCLUSION:We strongly recommend routine test of the blood for HCV in addition to HBV and HIV.We also recommend individualized counseling to identify those at risk and testing for those who want it.Improved surveillance and periodic epidemiological studies will have to be undertaken to monitor and prevent these blood-borne viruses.
基金Supported by the National Natural Sciences Foundation of China, No. 30160083
文摘AIM： To investigate the features of various blood- borne virus infections and co-infection in intravenous drug users （IDUs）, and to examine the correlation of T lymphocyte subsets with virus co-infection. METHODS： Four hundred and six IDUs without any clinical manifestation of hepatitis and 102 healthy persons were enrolled in this study. HBV-DNA and HCV-RNA were detected by fluorescence quantitative PCR. HBsAg, HBeAg, anti-HBc, anti-HCV, HDV-Ag, anti-HGV, anti-HIV, and HCMV-IgM were assayed by enzyme-linked immunosorbent assay （ELISA） and immunochromatographic tests. The levels of Th1 and Th2 cytokines were measured by ELISA and radioactive immune assay （RIA）. The T lymphocyte subpopulation was detected by using fluorescence immunoassay. The similar indices taken from the healthy persons served as controls. RESULTS： The viral infection rate among IDUs was 36.45% for HBV, 69.7% for HCV, 47.3% for HIV, 2.22% for HDV, 1.97% for HGV, and 3.45% for HCMV. The co- infection rate of blood-borne virus was detected in 255 of 406 （62.81%） IDUs. More than 80% （161/192） of subjects infected with HIV were co-infected with the other viruses, such as HBV, HCV. In contrast, among the controls, the infection rate was 17.65% for HBV and 0% for the other viruses. Our investigation showed that there was a profound decrease in the proportion of CD4/CD8 and the percentage of CD3 and CD4, but not in the percentage of CD8. The levels of PHA-induced cytokines （IFN-γ and IL-4） and serum IL-2 were obviously decreased in IDUs. On the other hand, the level of serum IL-4 was increased. The level of IFN-γ and the percentage of CD4 were continuously decreased when the IDUs were infected with HIV or HIV co-infection. IDUs with HIV and HBV co-infection was 15.1% （29/192）. Of those 29 IDU with HIV and HBV co-infection, 51.72% （15/29） and 37.93% （11/29） were HBV-DNA-positive and HBeAg-positive, respectively. But, among IDUs without HIV infection, only 1.68% （2/119） of cases were HBV- DNA-positive.CONCLUSION： HCV, HBV and HIV infections are common in this population of IDU, leading to a high incidence of impaired Thl cytokine levels and CD4 lymphocyte. IDUs with HIV and HBV/HCV co-infection have lower expression of Th1 cytokine with enhancement of the Th2 response. HIV may be causing HBV replication by decreasing Thl function.
基金supported by grants from the National Natural Sciences Foundation of China(81201261,81301428)the National Science Foundation for Post-doctoral Scientists of China(2013M5317456)the National Science and Technology Major Project of the Ministry of Science and Technology of China(2012ZX10004501-001-004)
文摘Mycobacterium tuberculosis(M.tb) and human immunodeficiency virus(HIV) co-infection has become a public health issue worldwide. Up to now, there have been many unresolved issues either in the clinical diagnosis and treatment of M.tb/HIV coinfection or in the basic understanding of the mechanisms for the impairments to the immune system by interactions of these two pathogens. One important reason for these unsolved issues is the lack of appropriate animal models for the study of M.tb/HIV coinfection. This paper reviews the recent development of research on the animal models of M.tb/HIV co-infection, with a focus on the non-human primate models.
文摘Rationale: Malaria and dengue are the most prevalent vector-borne diseases in tropical countries. Plasmodium parasite and dengue virus(DENV) concurrent infection is possible and often under-recognized in geographical areas where these infections are both endemic.Patients concern and diagnosis: We describe the first two cases of Plasmodium falciparum and DENV-3 co-infection in travelers returning to northeastern Italy from Burkina Faso during 2013-2014.Interventions: Malaria infection in both patients was treated with mefloquine. Due to the persistence of symptoms despite of the antimalaria treatment, dengue was also investigated;the treatment of dengue was symptomatic.Outcomes: The patients were discharged in good general condition.Lessons: The need for surveillance of potential malaria and dengue co-infection in travelers returning to Europe from endemic areas is highlighted, as infection with Plasmodium does not exclude arboviral co-infection.
基金funded by the Vietnam National Foundation for Science and Technology Development under grant number-106YS.04-2013.03
文摘Objective:To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi outbreak.Methods:Throat swabs were collected from 54 pediatric patients with confirmed measles,and molecular diagnostics performed for 10 additional viral respiratory pathogens(Influenza A/H1N1pdm09;A/H3N2 and influenza B;Parainfluenza 1,2,3;Respiratory Synctial Virus,RSV;human Metapneumovirus,hM PV;Adenovirus and Picornavirus).Results:Twenty-one cases(38.9%) showed evidence of infection with other respiratory viruses:15 samples contained measles plus one additional virus,and 6 samples contained measles plus 2 additional viruses.Adenovirus was detected as a predominant cause of co-infections(13 cases;24.1%),followed by RSV(6 cases;11.1%),A/H1N1pdm09(3 cases;5.6%),PIV3(3 cases;3.7%),Rhinovirus(3 cases;3.7%) and hM PV(1 case;1.96%).Conclusions:Viral co-infections identified from pediatric measles cases may have contributed to increased disease severity and high rate of fatal outcomes.Optimal treatment of measles cases may require control of multiple viral respiratory pathogens.
文摘Classical swine fever virus （CSFV） and porcine reproductive and respiratory syndrome virus （PRRSV） have caused immense economic loss in the pig industry and are considered to be the two most important infectious diseases of pigs in the world A multiplex reverse transcription polymerase chain reaction （multiplex RT-PCR） was developed for CSFV and PRRSV co-infections or infections, respectively. A set of two pairs of primer was designed based on the sequence of nonstructural protein NS54B of CSFV and ORF7 gene of PRRSV. The diagnostic accuracy of multiplex RT-PCR assay was evaluated by using 56 field clinical samples by multiplex RT-PCR, single RT-PCR and sequence analysis; and the specificity of multiplex PCR was verified by using constructed plasmids containing the specific viral target fragments of PRRSV and CSFV, respectively. The results indicated that this assay could reliably differentiate PRRSV and CSFV in co-infection samples. The multiplex RT-PCR developed in this study might provide a new avenue to the rapid the detection of CSFV and PRRSV in one reaction.
基金supported by the United States National Institute of Health/National Institute of Allergy and Infectious Diseases (US NIH/NIAID Grant No: U19AI51915)
文摘Background： Unhygienic blood collection in the early 1990s led to blood-borne infections in Central China. This study aimed to estimate human immunodeficiency virus （HIV） co-infection with hepatitis C and B viruses （HCV and HBV） and their risk factors in a rural area of Shanxi Province with a history of commercial blood donation. Methods： A cross-sectional study was conducted in 2004. All adult residents in the target area were invited to participate in the study. Face-to-face interviews were completed and blood specimens were tested for HIV, HCV, and HBV surface antigen （HBsAg）. Results： Prevalence rates of HIV, HCV, and HBsAg were 1.3% （40/3 062）, 12.7% （389/3 062）, and 3.5% （103/2982）, respectively. Of the 40 HIV-positive specimens, 85% were HCV positive and 2.5% were HBsAg positive. The history of commercial blood donation was positively associated with HIV, HCV, and HIV/HCV co-infections, but was negatively associated with HBsAg seropositivity. Migration for employment in the last 5 years was positively related to HIV, HBsAg, and HIV/HCV co-infections. Univariate logistic analysis showed that illegal drug use, number of sex partners, extramarital sex behavior, commercial sex behavior, and condom use rate were not related to anti-HIV, anti-HCV, HBsAg seropositivity or their co-infections. Conclusion： The history of commercial blood donation was the main risk factor for HIV, HCV, and HIV/HCV co-infections in this former commercial blood donation area. HIV and HCV prevention and treatment interventions are important in this area.
文摘BACKGROUND The coronavirus disease 2019(COVID-19)pandemic presents a significant challenge to the medical profession,increasing in the presence of microbial coinfection.Bacterial and Fungal co-infections increase the risk of morbidity and mortality in patients with COVID-19.AIM To study the bacterial profile in patients with COVID-19 who needed admission to receive treatment in the main centres concerned with managing COVID-19 disease in the Kingdom of Bahrain.METHODS The study was a retrospective observational analysis of the bacterial profile and the bacterial resistance in patients with confirmed COVID-19 disease who needed admission to receive treatment in the main centres assigned to manage patients with COVID-19 disease in the Kingdom of Bahrain from February to October 2020.We used the electronic patients’records and the microbiology laboratory data to identify patients’demographics,clinical data,microbial profile,hospital or community-acquired,and the outcomes.RESULTS The study included 1380 patients admitted with confirmed COVID-19 disease during the study period.51%were admitted from February to June,and 49%were admitted from July to October 2020,with a recurrence rate was 0.36%.There was a significant increase in bacterial and fungal co-infection in the second period compared to the first period.The most common isolated organisms were the gram-negative bacteria(mainly Klebsiella pneumoniae,Pseudomonas aeruginosa,multi-drug resistant Acinetobacter baumannii,and Escherichia coli),the grampositive bacteria(mainly coagulase negative Staphylococci,Enterococcus faecium,Enterococcus faecalis,Staphylococcus aureus)and fungaemia(Candida galabrata,Candida tropicalis,Candida albicans,Aspergillus fumigatus,Candida parapsilosis,Aspergillus niger).The hospital-acquired infection formed 73.8%,61.6%,100%gram-negative,gram-positive and fungaemia.Most of the hospital-acquired infection occurred in the second period with a higher death rate than communityacquired infections.CONCLUSION Bacterial and fungal co-infections in patients admitted with confirmed COVID-19 disease pose higher morbidity and mortality risks than those without coinfections.We should perform every effort to minimize these risks.
