Patrick O'Brian Discussion Forum

Separate question about mutations in bacteria

Bob Bridges

Coïcidentally, the weather here in NC unexpectedly turned cool again a week or so ago and is projected to continue cool for a while longer.  I've long observed that when the weather changes, either hot or cold, sicknesses abound, mostly ordinary colds as far as I can tell.  I just started a sore throat late yesterday, so it's on my mind.

But I got to thinking: My body, I gather, is able mostly to protect me from organisms it's encountered in the past; it's the new mutations that I catch.  Right?  So how does this match up to the observation that sicknesses increase when the weather changes?  Are we to believe that new bacteria appear at such times?  And if so, why?

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