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And of course you will possibly get infected by an additional runny nose virus, because there exist over 300 various runny nose viruses. Yet you will certainly never ever get the exact same runny nose virus that you had previously because you have created immunity to that particular virus.

Parents have in the past had a lot of the cold viruses. Adults have developed resistance to the viruses they have actually had. Therefore there are not as many cold infections remaining for adults to become infected with. That is why adults just get a few runny noses annually whereas kids acquire 10-12 colds annually.
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