**Date & Time:** Friday, October 23, 2015, 15:00-16:00.

**Venue:** Ramanujan Hall

**Title:** An SIS epidemic in large population with individual variation

**Speaker:** Phil Pollet, The University of Queensland, Australia

**Abstract:** We consider a model similar to the stochastic
SIS (Susceptible-Infectious-Susceptible) model in continuous time,
which accounts for variation amongst individuals. We prove that, as
the population size grows, the process can be approximated by a
deterministic process. The equilibrium points of the limiting
process are identified and their stability is examined (Joint work with
Ross McVinish, The University of
Queensland).