And sure you will possibly acquire one more runny nose virus, since there remain more than 300 various cold infections. But you will never ever get the same cold infection that you had previously due to the fact that you have developed immunity to that particular virus.

Parents have actually previously had a lot of the cold infections. Adults have actually created immunity to the ones they have actually suffered from. Therefore there are not as many runny nose viruses around for parents to catch. That is why grownups just succumb to a couple of colds each year and youngsters may get 10-12 runny noses annually.
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