And of course you will eventually get infected by an additional cold virus, because there remain more than 300 various cold infections. But you will certainly never acquire the very same runny nose virus that you had in the past since you have created immunity to it.Adults have actually previously had a lot of the runny nose infections. Grownups have actually developed immunity to the viruses they have suffered from. Therefore there are not so numerous of runny nose viruses around for parents to acquire. That is why parents only acquire a few runny noses annually whereas children may get a dozen colds per year.