And of course you will eventually succumb to a different cold virus, because there are over 300 various runny nose infections. Yet you will never get the same runny nose virus that you had before due to the fact that you have actually developed immunity to that cold virus.

Parents have in the past had a great deal of the rhinitis infections. Grownups have created immunity to the viruses they have had. So there are not numerous cold viruses existing for parents to become infected with. That is why adults just acquire a few runny noses each year whereas kids may get 10-12 runny noses each year.
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