Threshold Dynamics in a Delayed SIS Epid
β
Xiao-Qiang Zhao; Xingfu Zou
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Article
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2001
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Elsevier Science
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English
β 99 KB
An SIS epidemic model with maturation delay is analysed. It is shown that the disease dies out when the basic reproduction number R -1, and the disease 0 remains endemic when R ) 1 in the sense of uniform persistence. When the 0 disease induced death rate is sufficiently small, the global attractivi