And definitely you will probably succumb to another cold virus, because there exist more than 300 different runny nose viruses. Yet you will unlikely acquire the same runny nose infection that you had before because you have actually established immunity to that cold virus.

Grownups have currently had a lot of the rhinitis viruses. Adults have actually created immunity to the viruses they have had. So there are not so many runny nose viruses remaining for parents to become infected with. That is why parents only get a few runny noses per year whereas youngsters succumb to 10-12 runny noses each year.
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