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Perchance have you a while ago endured a cold? Maybe did you do away with it? Obviously you did! You will not heal a runny nose itself, but your system generally establishes resistance to a certain cold infection within a few days. We call that treated by your very own immunity!
Parents have actually previously had a great deal of the cold viruses. Grownups have acquired immunity to the ones they have actually had. So there are not quite as many runny nose viruses existing for parents to become infected with. That is why adults just get infected with a couple of runny noses each year and kids usually get 10-12 colds each year.
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