And of course you will probably succumb to a different runny nose virus, since there are several hundred different cold infections. Yet you will never ever acquire the same cold infection that you had previously due to the fact that you have actually created immunity to that particular virus.Adults have in the past had a lot of the cold viruses. Adults have actually created immunity to the ones they have suffered from. Therefore there are not numerous runny nose infections existing for parents to become infected with. That is why adults just get infected with a few colds per year whereas children get 10-12 runny noses each year.