A lot of people are asking the question, so I think it's useful to point out that a vaccine that prevents 90% of infections would be sufficient for herd immunity in most cases
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It remains to be seen whether Pfizer's vaccine - or any of the other candidates - can meet this fairly high threshold for efficacy, but if they can then yes vaccine-induced herd immunity would certainly be on the table
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I'm expecting take-up in the mid 70%s to low 80%s in high vaccination-acceptance countries (based on survey data) Is that "close but no cigar", or is it "close enough for jazz"?
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