• lath@lemmy.world
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    2 days ago

    Definitely not a scientist here , I’d say our immune system can be very forgetful because it’s a waste of energy to memorize all the different kinds of bacteria that change/evolve over time.

    Similar to today’s cops, white cells don’t care who or what they attack, but they will beat the shit out of it and deport it to El Salvador when told to. Hence auto-immune diseases.

    • Dr. Bob@lemmy.ca
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      2 days ago

      Our immune system remembers just fine, but it’s not heritable. Every organism starts with a blank immune system (mostly, mammals can get some antibody protection from their mother, but have to learn to make their own eventually) and the system learns through exposure to the pathogen. No exposure, no learning.