Virology Lectures 2019 #21: Evolution

Viral evolution, the constant change of a viral population in the face of selection pressures, 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.

[globalaide]

After 39 years in medicine and treating patients around the world in both military and the civilian sector, I salute your approach to this latest emergency. You have made it very clear and easy to understand even for those, like my wife who is not a provider. Thanks and a big salute from Asia. If we can be of help from our location near Singapore, please let us know. Ciao for now.

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[postbodzapism]

Where do you talk about antigenic drift in more detail?

[markotomasevic]

So for example, is the relatively low HIV infectivity due to its large number of mutations and the fact its an RNA virus?