This article has nothing to do with the SARS-COV.2 virus. antivaxxers are terrible but please do not spread misinformation/gibberish.

because they believe that this mechanism has been used by hard-to-treat viral pneumonia for a while now, they are only just observing this phenomenon which the viruses have been using for a long time.

note - this is NOT a new disease, the scientists have just advanced our understanding of how common viral infections occurred and their methods for avoiding our immune system's response. just to repeat this is not a new disease, there is no need to panic, if you are worried read the article.

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• the biologists research paper

I think it has less to do with culture and more to do with a generation gap, I read another article about tribal warfare on Papua New Guinea, and while it has always existed there where historically rules and rituals associated with it (e.g. they could only fight on certain days at certain places etc.) so while brutal the fighting was relatively limited/contained. the newer generations largely ignore these traditions (partially due to missionary activity) and also now have access to metal tools and black-market guns which has made tribal warfare much more deadly than it previously had been.