And of course you will eventually cave in to an additional cold virus, due to the fact that there are more than several hundred different cold infections. Yet you will unlikely get the very same runny nose infection that you had in the past because you have actually established resistance to that particular cold virus.

Adults have actually already had a lot of the cold viruses. Adults have acquired immunity to the ones they have actually had. So there are not quite as many cold infections remaining for adults to catch. That is why parents only get infected with a few runny noses per year whereas youngsters acquire a dozen colds annually.
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