title: Instabilities in multiserotype disease models with antibody-dependent enhancement.
abstract: This paper investigates the complex dynamics induced by antibody-dependent enhancement (ADE) in multiserotype disease models. ADE is the increase in viral growth rate in the presence of immunity due to a previous infection of a different serotype. The increased viral growth rate is thought to increase the infectivity of the secondary infectious class. In our models, ADE induces the onset of oscillations without external forcing. The oscillations in the infectious classes represent outbreaks of the disease. In this paper, we derive approximations of the ADE parameter needed to induce oscillations and analyze the associated bifurcations that separate the types of oscillations. We then investigate the stability of these dynamics by adding stochastic perturbations to the model. We also present a preliminary analysis of the effect of a single serotype vaccination in the model.
authors.affiliation: Department of Mathematical Sciences, Montclair State University, Montclair, NJ 07043, USA. billingsl@mail.montclair.edu
authors.forename: Lora
authors.initials: L
authors.lastname: Billings
authors.forename: Ira B
authors.initials: IB
authors.lastname: Schwartz
authors.forename: Leah B
authors.initials: LB
authors.lastname: Shaw
authors.forename: Marie
authors.initials: M
authors.lastname: McCrary
authors.forename: Donald S
authors.initials: DS
authors.lastname: Burke
authors.forename: Derek A T
authors.initials: DA
authors.lastname: Cummings
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000276:immunology*; D019067:Antibody-Dependent Enhancement; D004196:Disease Outbreaks; D006801:Humans; D018448:Models, Immunological; D017711:Nonlinear Dynamics; D014611:Vaccination; D014774:Virulence; D014777:Virus Diseases / Q000276:immunology* / Q000517:prevention & control; D014780:Viruses / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral