Pfizer vaccine protects well against Covid-19 variant found in SA, data shows
While the new overall efficacy rate of 91.3% is lower than the 95% originally reported in November, a number of variants have become more prevalent globally since then
01 April 2021 - 14:29
Pfizer and BioNTech’s Covid-19 vaccine is about 91% effective at preventing the disease, they said on Thursday, citing updated trial data that included participants inoculated for up to six months.
The shot was also 100% effective in preventing illness among trial participants in SA, where a new variant called B1351 is dominant, though the number of those participants was relatively small at 800...
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