And sure you will eventually acquire a different runny nose virus, since there exist several hundred various cold infections. However you will certainly never ever get the exact same cold infection that you had in the past due to the fact that you have actually established immunity to that particular cold virus.

Adults have actually previously had a lot of the rhinitis viruses. Parents have actually developed resistance to the viruses they have suffered from. Therefore there are not lots of cold viruses around for parents to become infected with. That is why adults just acquire a few colds annually and youngsters acquire a dozen colds per year.
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