And definitely you will eventually cave in to an additional cold, since there remain more than 300 different cold infections. Yet you will never ever get the exact same cold virus that you had in the past because you have created resistance to that virus.Adults have previously had a lot of the rhinitis viruses. Parents have acquired immunity to the viruses they have had. Therefore there are not so numerous of cold viruses remaining for adults to acquire. That is why parents just get infected with a few colds each year and youngsters may get a dozen colds per year.