And of course you will eventually succumb to a different runny nose virus, because there exist several hundred different runny nose infections. But you will never ever get the exact same cold virus that you had in the past because you have actually developed resistance to that particular virus.Adults have actually previously had a great deal of the runny nose viruses. Parents have created resistance to the viruses they have had. Therefore there are not so numerous of cold infections around for adults to become infected with. That is why parents only acquire a couple of colds each year and kids get 10-12 colds annually.