And of course you will eventually get infected by another cold virus, due to the fact that there are several hundred different runny nose viruses. However you will unlikely get the same runny nose infection that you had before since you have actually created immunity to that particular virus.

Adults have actually in the past had a lot of the cold viruses. Adults have actually created resistance to the viruses they have suffered from. Therefore there are not numerous cold viruses around for adults to acquire. That is why parents only get infected with a few runny noses annually and youngsters usually get 10-12 colds per year.
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