If you have any links off hand on the cross immunity I'd love to read them. That's not something I've heard of and I'd like to read more about it so I'm better equipped to argue with the covid fear-mongers. Edit: did a google search like a non-lazy asshole. Dropping some links for anyone who may be interested: https://science.sciencemag.org/content/early/2020/08/04/science.abd3871 https://www.sciencealert.com/surprise-finding-suggests-some-people-are-already-primed-to-fight-the-coronavirus https://www.sciencedirect.com/science/article/pii/S0306987720317874

If you have any links off hand on the cross immunity I'd love to read them. That's not something I've heard of and I'd like to read more about it so I'm better equipped to argue with the covid fear-mongers