Most of the endemic ones are mild/non-fatal because they invaded humans several thousand years ago and did likely cause severe pandemics back then. The evolved to be less fatal and human immune systems also adapted and truly genetically vulnerable types got culled effectively.
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Wonder if there’s any home-grade experiments or observations you can do with harmless bacteria that don’t require an electron microscope and won’t bring the FBI down on you. Hobby virology should be a thing.
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From first QT, sounds like most cold viruses don’t do enough damage to require adaptive immune response (specific antigens). I guess first response stuff like interferon works well enough?
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Welcome to my world.
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What do you do at bright line? Bio says pipette monkey

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Mark Twain's Letters from Earth has Satan claiming the God's chosen ones were actually the microbes.
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