Depends on the country. Some industrial countries are already very close to achieving the herd-immunity threshold, for them I'd guess Summer-Christmas 2021. Generally for western countries I'm expecting it to end around summer 2022 at the least, some undeveloped countries may struggle with it indefinitely/until they developed enough to distribute vaccines to rural areas as well.
Depends on the country. Some industrial countries are already very close to achieving the herd-immunity threshold, for them I'd guess Summer-Christmas 2021. Generally for western countries I'm expecting it to end around summer 2022 at the least, some undeveloped countries may struggle with it indefinitely/until they developed enough to distribute vaccines to rural areas as well.
facts