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>Have you heard of any coronavirus variants coming out of South Korea, China, or New Zealand? No. That’s because they don’t have uncontrolled spread there, whic
by loveistheanswer 6y ago
>Have you heard of any coronavirus variants coming out of South Korea, China, or New Zealand? No. That’s because they don’t have uncontrolled spread there, which leads to mutations due to the virus’s exposure to heterogenous immunity in the population.
That's one hypothesis.
Don't particular populations already have a degree of natural herd immunity to viruses which are commonly found in their proximity, compared to populations on the other side of the world who do not?
Like how Europeans brought their diseases, which they had built up immunity against, to the Americas which then decimated the indigenous populations.
Could we hypothesize that many Asians have a stronger natural immunity to covid19?
- faitswulff 6y agoThe term you’re looking for is cross-reactivity and it’s possible that populations have some cross reactivity to COVID. In fact, I’ve heard a hypothesis that the pandemic of 1890 was the predecessor of one of the common cold coronaviruses. Regardless, New Zealand is clearly not an Asian country.
- loveistheanswer 6y agoCross-reactivity! Thanks, TIL. New Zealand is obviously a bit of a red herring considering it is an affluent island nation with a low population density.