A sharp threshold for disease persistence in host metapopulations
A sharp threshold for disease persistence in host metapopulations
A sharp threshold is established that separates disease persistence from the extinction of small disease outbreaks in an S→E→I→R→S type metapopulation model. The travel rates between patches depend on disease prevalence. The threshold is formulated in terms of a basic replacement ratio (disease reproduction number), ℛ0, and, equivalently, in terms …