No doubt you will possibly get infected by one more cold virus, since there are 300 different runny nose viruses. However you will certainly never ever get the very same runny nose virus that you had before because you have established resistance to that particular virus.Adults have already had a lot of the rhinitis infections. Parents have actually established immunity to the ones they have had. Therefore there are not so many cold viruses around for adults to acquire. That is why adults just get a few colds each year and children get a dozen runny noses per year.