And sure you will probably succumb to a different cold virus, because there remain 300 different cold infections. But you will never acquire the very same runny nose virus that you had in the past because you have developed immunity to it.Parents have currently had a great deal of the runny nose viruses. Parents have established resistance to the colds they have had. Therefore there are not so numerous of cold infections existing for parents to become infected with. That is why grownups just get infected with a few colds per year whereas children get 10-12 runny noses each year.