And sure you will possibly get infected by another cold virus, because there are more than 300 various cold viruses. But you will certainly never ever acquire the same runny nose infection that you had in the past due to the fact that you have actually developed resistance to it.

Parents have in the past had a lot of the runny nose infections. Grownups have actually developed immunity to the ones they have actually suffered from. Therefore there are not quite as many cold infections existing for parents to acquire. That is why grownups only acquire a few colds annually and kids get a dozen runny noses per year.
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