And sure you will eventually acquire another runny nose virus, since there exist 300 different cold viruses. But you will certainly never acquire the very same runny nose virus that you had in the past due to the fact that you have created resistance to that particular virus.Adults have actually currently had a lot of the rhinitis viruses. Adults have acquired resistance to the colds they have suffered from. Therefore there are not so many runny nose infections remaining for adults to become infected with. That is why parents just get a couple of runny noses annually whereas kids acquire 10-12 runny noses annually.