Virology Lectures 2024 #21: Evolution

Viral evolution is the constant change of a viral population in the face of selection pressures. Viral evolution occurs faster than in other organisms because viruses produce so many progeny harboring many genome mutations. In this lecture we consider the four main drivers of viral evolution: large numbers of progeny, mutation, selection, and quasispecies effects, and discuss where viruses came from and where they are going.
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