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No doubt you will eventually cave in to another cold virus, because there are more than 300 different cold infections. Yet you will never acquire the exact same runny nose virus that you had before because you have actually developed immunity to that virus.
Grownups have in the past had a lot of the runny nose viruses. Grownups have established immunity to the viruses they have actually suffered from. So there are not lots of cold infections existing for adults to become infected with. That is why adults just succumb to a couple of colds annually whereas children acquire a dozen colds per year. https://www.instapaper.com/read/1630803429 |
