title: Dispersal, disease and life-history evolution.
abstract: Discrete-time susceptible-infective-susceptible (S-I-S) disease transmission models can exhibit bistability (alternative stable equilibria) over a wide range of parameter values. We illustrate the richness generated by such 'simple' non-linear systems in the study of two patch epidemic models with disease-enhanced or disease-suppressed dispersal. Dispersal between patches can have a profound impact on local patch disease dynamics. In fact, dispersal between patches may give rise to bistability in parameter regimes without bistability in single patch models.
authors.affiliation: Theoretical and Applied Mechanics Department, Cornell University, Ithaca, New York 14853-7801, USA.
authors.forename: C
authors.initials: C
authors.lastname: Castillo-Chavez
authors.forename: A
authors.initials: A
authors.lastname: Yakubu
mesh_terms: D000818:Animals; D018562:Disease Transmission, Infectious; D004812:Epidemiologic Methods; D006801:Humans; D008954:Models, Biological