Taylor's Power Law rules the dynamics of allele frequencies during viral evolution in response to host changes.

Abstract excerpt

Sudden and gradual changes from permissive to resistant hosts affect viral fitness, virulence and rates of molecular evolution. We analysed the roles of stochasticity and selection in evolving populations of Sindbis virus under different rates of host replacement. First, approximate Markov models within the Wright-Fisher diffusion framework revealed a reduction in effective population size by approximately half...

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