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SciFri Book Club Returns, Upcoming Winter Illnesses. Oct 28, 2022, Part 1

Science Friday

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Virus Evolution

There's been a lot of discussion about whether we're going to see more severe disease, milder disease as the virus evolves. We've seen variants gain some big advantages by transmitting better between people or just being better at dodging antibodies. A virus that is extremely immune invasive might end up being more virulent and more damaging to a population because our vaccines aren't protecting us so well. Or if in order to be more transmissible, it has to change how it replicates in the body, then that can also lead to more virulence. There's a hundred different trade-offs happening all the time with pathogen transmission. It's very difficult to predict which way these things will go.

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