Introduction:The Chinese government has established targets for elimination of schistosomiasis in all endemic counties by 2028.This study aimed to analyze the epidemiological characteristics of schistosomiasis in Chin...Introduction:The Chinese government has established targets for elimination of schistosomiasis in all endemic counties by 2028.This study aimed to analyze the epidemiological characteristics of schistosomiasis in China after transmission control and provide a theoretical basis for achieving the countylevel elimination goal by 2028.Methods:Provincial and county-level data on human infection,cattle reservoirs and Oncomelania hupensis snail vector distribution were collected from 2016 to 2023,to analyze the trend of schistosomiasis epidemic situation and serological positive rate.Joinpoint regression analysis was employed to analyze seropositive rate trends.Results:The number of schistosomiasis cases decreased by 49.00%,from 54,454 in 2016 to 27,772 in 2023.The 8-year average seropositive rate across provincial-level administrative divisions(PLADs)was 1.80%,with the highest rates observed in Yunnan(2.99%),Jiangxi(2.84%),and Hunan(2.67%)PLADs.Joinpoint analysis revealed a consistent decline in seropositive rates since 2016 and a significant inflection point was identified in 2021,indicating an acceleration in the rate of decline.No positive cattle have been detected since 2020.The total area of snail habitats exhibited a slight rebound from 356,835 square hectometers(hm^(2))in 2016 to 367,702 hm^(2) in 2023,with new habitats emerging annually,totaling 4,080 hm^(2) of newly identified habitats.Conclusions:Development of highly sensitive and specific diagnostic tools is essential,alongside intensified surveillance of wild animal reservoirs and high-risk snail habitats,to achieve the goal of eliminating schistosomiasis by 2030.展开更多
基金Supported by the Three-Year Initiative Plan for Strengthening Public Health System Construction in Shanghai(2023-2025)Key Discipline Project(GWVI-11.1-12).
文摘Introduction:The Chinese government has established targets for elimination of schistosomiasis in all endemic counties by 2028.This study aimed to analyze the epidemiological characteristics of schistosomiasis in China after transmission control and provide a theoretical basis for achieving the countylevel elimination goal by 2028.Methods:Provincial and county-level data on human infection,cattle reservoirs and Oncomelania hupensis snail vector distribution were collected from 2016 to 2023,to analyze the trend of schistosomiasis epidemic situation and serological positive rate.Joinpoint regression analysis was employed to analyze seropositive rate trends.Results:The number of schistosomiasis cases decreased by 49.00%,from 54,454 in 2016 to 27,772 in 2023.The 8-year average seropositive rate across provincial-level administrative divisions(PLADs)was 1.80%,with the highest rates observed in Yunnan(2.99%),Jiangxi(2.84%),and Hunan(2.67%)PLADs.Joinpoint analysis revealed a consistent decline in seropositive rates since 2016 and a significant inflection point was identified in 2021,indicating an acceleration in the rate of decline.No positive cattle have been detected since 2020.The total area of snail habitats exhibited a slight rebound from 356,835 square hectometers(hm^(2))in 2016 to 367,702 hm^(2) in 2023,with new habitats emerging annually,totaling 4,080 hm^(2) of newly identified habitats.Conclusions:Development of highly sensitive and specific diagnostic tools is essential,alongside intensified surveillance of wild animal reservoirs and high-risk snail habitats,to achieve the goal of eliminating schistosomiasis by 2030.
