And definitely you will most likely succumb to an additional runny nose virus, because there remain more than several hundred different cold viruses. But you will never get the same cold virus that you had before since you have created resistance to that cold virus.

Parents have actually previously had a lot of the rhinitis viruses. Grownups have created resistance to the ones they have had. Therefore there are not as many cold viruses remaining for grownups to acquire. That is why adults only get infected with a couple of colds annually whereas kids acquire a dozen colds each year.
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