> But remember, antibody response (whether through infection or through getting vaccinated) is polyclonal: you raise a number of different antibodies that bind in different ways. That’s one of the key features of the adaptive immune system: hitting a new antigen from a number of directions at once. This makes it harder to slip through for a new pathogen variant – which is good, but at the same time, it’s not impossible, either. Thus the attention being paid to these two new strains.
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