No doubt you will eventually get infected by a different cold virus, because there exist over 300 various runny nose infections. Yet you will certainly never ever acquire the exact same cold infection that you had previously due to the fact that you have actually developed immunity to that cold virus.Adults have actually previously had a lot of the runny nose infections. Adults have created immunity to the viruses they have suffered from. Therefore there are not as many cold infections remaining for adults to catch. That is why adults just get a couple of colds per year whereas kids usually get a dozen colds per year.