Thematic Session 1: Reaction-diffusion equations and aggregation, chemotaxis and nonlocal dispersal

Basic Reproduction Numbers for Reaction-Diffusion Population Models

Xiao-Qiang Zhao

Canada
Co-Author(s):    Xiao-Qiang Zhao
Abstract:
The basic reproduction number (or ratio) R0 is an important concept in population biology. As a threshold quantity for population dynamics, it is unquestionably one of the most valuable mathematical ideas brought to theoretical ecology and epidemiology. In this talk, I first review the definition, stability equivalence, numerical computation of R0 for reaction-diffusion systems with compartmental structure. Then I introduce a spatial model of Zika virus transmission with seasonality and establish a threshold type result on the global stability in terms of R0. Finally, I present numerical simulations for the Zika transmission in Rio de Janeiro Municipality, Brazil and briefly discuss the effects of some model parameters on R0.