And sure you will possibly get infected by another cold, due to the fact that there exist more than 300 different runny nose infections. However you will never ever acquire the same runny nose infection that you had previously because you have developed immunity to it.Parents have previously had a great deal of the rhinitis infections. Adults have acquired resistance to the viruses they have suffered from. So there are not as many runny nose viruses remaining for grownups to become infected with. That is why parents only acquire a couple of runny noses per year and youngsters succumb to 10-12 colds annually.