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Why we can't count on herd

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      September 21, 2021 9:51 PM PDT
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  • Throughout the covid-19 pandemic there has been constant reference to the tantalising phenomenon that signals the end: herd immunity. This is when enough people are immune to a virus that it can’t spread, therefore protecting the whole community, including those who aren’t immune.

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      September 4, 2021 5:10 AM PDT
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