Pfizer far less effective against Delta, but it’s not all bad news
The efficacy rate in Israel has dropped dramatically from 94.3% to 64% over the last month
05 July 2021 - 20:25
Israel has recorded a steep drop in the efficacy rate of the Pfizer-BioNTech vaccine in preventing coronavirus infections due to the spread of the Delta variant and the easing of government restrictions, Ynet news website reported, citing health ministry data...
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