Global behaviour of a heroin epidemic mo
โ
Junli Liu; Tailei Zhang
๐
Article
๐
2011
๐
Elsevier Science
๐
English
โ 240 KB
In this paper, we study a heroin epidemic model with distributed time delays. The basic reproduction number R 0 for the model is identified and the threshold property of R 0 is established. It is shown that drug-free equilibrium is globally asymptotically stable if R 0 < 1. When R 0 > 1, there is a