And of course you will most likely get infected by another cold, because there remain more than several hundred various runny nose infections. But you will certainly never get the exact same runny nose virus that you had in the past due to the fact that you have actually developed resistance to that particular cold virus.Grownups have actually already had a lot of the runny nose infections. Parents have actually acquired immunity to the viruses they have had. So there are not quite as many runny nose infections remaining for grownups to become infected with. That is why parents only get a few colds annually and kids get 10-12 runny noses each year.