Abstract
An S → I epidemic model with a general shape of density-dependent mortality and incidence rate is studied. The asymptotic behaviour is global convergence to an endemic equilibrium, above a threshold, and to a disease-free equilibrium, below the threshold. The effect of vaccination is then examined.
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Pugliese, A. Population models for diseases with no recovery. J. Math. Biol. 28, 65–82 (1990). https://doi.org/10.1007/BF00171519
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DOI: https://doi.org/10.1007/BF00171519