Abstract
Continuous deterministic models are used to investigate the relationship between the epidemiology of endemic infectious disease and the genetics of natural selection in the host population when a specific genetic locus controls susceptibility to disease under a variety of circumstances. One locus, two allele genes are considered in the contexts of haploid and diploid host populations while the agent of infection is assumed to be invariant. It is found that polymorphic equilibria exist and are stable for certain parameter combinations in each of the cases studied. The equilibrium levels of gene frequencies and disease prevalence depend on both genetic and epidemic factors.
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Kemper, J.T. The evolutionary effect of endemic infectious disease: Continuous models for an invariant pathogen. J. Math. Biology 15, 65–77 (1982). https://doi.org/10.1007/BF00275789
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DOI: https://doi.org/10.1007/BF00275789