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ANALYSIS: Five reasons why COVID herd immunity is probably impossible

https://www.nature.com/articles/d41586-021-00728-2

As COVID-19 vaccination rates pick up around the world, people have reasonably begun to ask: how much longer will this pandemic last? It’s an issue surrounded with uncertainties. But the once-popular idea that enough people will eventually gain immunity to SARS-CoV-2 to block most transmission — a ‘herd-immunity threshold’ — is starting to look unlikely.

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Seattle’s virus success is an example of what could have been

SEATTLE — Facing the nation’s first widespread coronavirus outbreak, some of Washington State’s top leaders quietly gathered on a Sunday morning last March for an urgent strategy session.

The virus had been rampaging through a nursing home in the Seattle suburbs. By the time the meeting began, the region had recorded most of the nation’s first 19 deaths. New cases were surfacing by the hour.

As the meeting’s presentation got to the fifth slide, the room grew somber. The numbers showed a variety of potential outcomes, but almost every scenario was a blue line pointing exponentially upward. ...

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