X referring to any thing…. Even more specifically why can’t immunity be built against HIV/AIDS (or any other serious illness/disease)?
In: Biology
I can’t really answer the second part (about fighting HIV/AIDs). But when your body gets exposed to a certain disease/illness, your body has a way of remembering the viruses/bacteria that caused that illness. So when you get infected with that virus/bacteria again, your body recognised it quicker. This creates a stronger and quicker immune response, you “built” a quicker and stronger response to the illness.
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