Network for Biological Invasions and Dispersal Research

MITACS Seminar at the University of New Brunswick, Fredericton

Tuesday, 14 September, 2010,

Shaofen Zou

of York University

will speak on

 Multiple Epidemic Waves in a Delayed Heterogeneous  SIR Model

Abstract: A delayed SIR epidemic model on a scale-free network is considered. We  address the effect of time lag on the shapes of epidemic curves and show that when the transmission rate is above a threshold, large delay can cause multiple waves with larger amplitudes in the second and subsequent waves.