This has come up in conversation several times in my own circles so I wanted to ask this question here on the 'dope (sorry if this has already been debated or addressed). Basically, why is it that natural immunity isn’t a valid reason for not needing a vaccination wrt people who have had Covid in the past? I was reading that several of the Nordic countries accept natural immunity from having previously had the disease already as valid for going to restaurants, or work, or the like…on par with having been vaccinated. When I saw this I just sort of nodded and went on, but then in conversations, often heated, it seems this isn’t accepted in the US, and often we require vaccination even if someone already previously had the virus. Why?
I can think of a few reasons, and in fact speculated on this in those conversations, once I learned this is actually a thing. Perhaps it’s because of mutations, like seasonal flu. You have to get the new flu shot every year, after all, because the virus mutates and the previous infection doesn’t mean you are immune to the new variant. Is this the main reason? Another is more cynical and has to do with the drug companies pushing this to get more vaccinations. I dismissed this one, but am putting it in here anyway. Maybe it has to do with trust or verification…did the person really have Covid? In the Nordic countries, there is a much higher level of trust than in the US, say.
At any rate, I’m asking here and hoping to get some insight into this. I know that this has affected a lot of folks, especially those who have had Covid, who don’t think they need or want the shot and yet have to get it anyway to keep their job or whatever.