摘要
建立了相互竞争的两种群中具有饱和传染率的SIRS传染病模型;研究了系统的持续性,得到疾病持续生存与消亡的充分条件。结论:在两种群共存的情况下,当种内传染强度较大时,疾病将持续生存;若对种内传染强度和种间交叉传染强度加以控制,疾病就会消亡。
An SIRS epidemic model of two competitive species with saturated infection rate is formulated.The persistence of the system is studied,and the sufficient conditions of the epidemic persistence or disappearance are obtained.It is concluded that under the co-existing condition of both species,the disease will persist when the inner-infection rate within the species is rather high;that the disease will disappear when the inner-infection and the inter-infection rates are controlled.
出处
《福建工程学院学报》
CAS
2011年第1期76-79,共4页
Journal of Fujian University of Technology
基金
福建省教育厅科技项目(JB08194)
