And sure you will most likely acquire a different runny nose virus, since there remain 300 different runny nose viruses. But you will never ever get the very same runny nose virus that you had previously because you have developed resistance to that particular cold virus.Parents have in the past had a lot of the runny nose infections. Parents have developed resistance to the viruses they have actually had. Therefore there are not so numerous of cold viruses around for adults to catch. That is why adults only get a few runny noses each year and youngsters usually get a dozen runny noses per year.