Ok, next question...
In our immune system there are specific defense mechanisms that take care of specific bacteria or viruses. So, for a given bacteria, there is a given lymphocyte (B or T) that binds to its antigens so that it can swallow it up.
So, what if there is a new bacteria that you are exposed to...how does your body or your WBC recognize the new pathogen and destroy it?? Are new receptors needed for nonspecific (if there is such a thing) WBC? How do you create new receptors?
Oh, another question...
If you just had an infection, are there more memory cells present than there are, say when you were not infected for 10 years?
I need answers!! :)
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