And sure you will probably cave in to one more cold virus, since there are more than several hundred different runny nose infections. Yet you will certainly unlikely get the same cold infection that you had in the past due to the fact that you have established resistance to that cold virus.

Grownups have already had a lot of the rhinitis infections. Adults have actually established resistance to the ones they have had. Therefore there are not so many runny nose infections around for adults to acquire. That is why adults only get infected with a few runny noses per year and children succumb to 10-12 colds annually.
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