Abstract
In this paper, we derive some threshold conditions for permanence and extinction of diseases that can be described by a nonautonomous SEIRS epidemic model. Under the quite weak assumptions, we establish some sufficient conditions to prove the permanence and extinction of disease. Some new threshold values are determined.
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Zhang, T., Teng, Z. On a Nonautonomous SEIRS Model in Epidemiology. Bull. Math. Biol. 69, 2537–2559 (2007). https://doi.org/10.1007/s11538-007-9231-z
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DOI: https://doi.org/10.1007/s11538-007-9231-z