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Coronavirus: The World May Never Reach Herd Immunity Against Covid

As Covid-19 surged last year, governments worldwide touted the hope of "herd immunity," a promised land where the virus stopped spreading exponentially because enough people were protected against it. That's now looking like a fantasy.

The world may never reach herd immunity against Covid-19

Bad news about Covid-19 herd immunity

Bad news about Covid-19 herd immunity
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herd immunity: Will the world reach herd immunity against Covid-19?

Nature isnt going to solve the problem, either. Its unclear how long natural immunity gained from surviving Covid-19 will last, and whether it will be effective at fighting off new strains. Future variants, including some that could evade immunity even more efficiently than delta, raise questions about how and when this will be over.

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