作者: Paul Waltman
DOI: 10.1016/B978-0-12-627250-5.50017-4
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摘要: Publisher Summary This chapter presents a deterministic model of the spread an infection between two populations. It also for within populations, where disease may be transmitted only by members one population to other. The mathematical consequence threshold phenomenon described in is that, particularly difficult kind delay comes into equation. In discussing model, first population, traditionally called host divided four disjoint classes. second vector same way as one. As presented, roles and are symmetric no distinction made other than identify