Predator-prey oscillations can shift when diseases become endemic
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In epidemiology, knowing when a disease is endemic is important. This is usually done by finding the basic reproductive number, R0, using equilibrium-based calculations. However, oscillatory dynamics are common in nature. Here, we model a disease with density dependent transmission in an oscillating predator–prey system. The condition for disease persistence in predator–prey cycles is based on the time-average density of the host and not the equilibrium density. Consequently, the time-averaged basic reproductive number View the MathML source is what determines whether a disease is endemic, and not on the equilibrium-based basic reproductive number View the MathML source. These findings undermine any R0 analysis based solely on steady states when predator–prey oscillations exist for density dependent diseases.
|Creators||Bate, A.and Hilker, F.|
|Departments||Faculty of Science > Mathematical Sciences|
|Research Centres||Centre for Mathematical Biology|
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