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Covid-19: Reports from Israel suggest one dose of Pfizer vaccine could be less effective than expected

The BMJ
Concerns have been raised over how much protection a single dose of the Pfizer BioNTech covid-19 vaccine provides, following reports from Israel that it is much lower than expected. Israel, which, ...
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ファイザーさん、1回接種でも5割の効果を謳ってるけど、3割しか無いんだけどどうしてくれるの!? みたいな