Abstract:Stringent, stochastic viral population bottlenecks have been observed in the infections of many 5 viruses, but exactly how and why they occur is unclear. A critical review of recent literature prompts us 6 to propose a new hypothesis, designated Isolate, Amplify, and Select (IAS), that satisfactorily explains 7 the bottlenecks in single-stranded, positive sense (+) RNA virus infections. This new hypothesis 8 postulates that, unlike those in free-living organisms, the viral population bottlenecks are imposed by… Show more
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