Why didn’t we ever get immune to colds if it’s so common?

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Why didn’t we ever get immune to colds if it’s so common?

In: Biology

My understanding is that it’s because the cold virus keeps mutating and/or there are hundreds (thousands?) of strains of the virus. Unless you’ve previously had the exact strain that you were exposed to, you aren’t immune to it.

Because the virus constantly changes, like the flu, and your body can only prep against versions it’s already fought.

The rhinovirus (aka common cold) is always changing/mutating into new strands. One person’s virus could be exponentially different than another person’s, it’s quite amazing.

Much like the flu, the common cold’s virus is always different every year. Although there is no vaccination for a cold, it’s soo important to make sure you are always updated on your most recent flu shot! Every year the strain is different and could be more deadly than the last!

(I am a fellow microbiologist ;-))