One striking chart shows just how well Pfizer’s shot works to prevent Covid-19 infections – Business Insider South Africa

Two weeks after the first shot, people who received Pfizer’s Covid-19 vaccine showed signs of protection. In the control group, infections climbed.

The US Food and Drug Administration released safety and efficacy data on Pfizer’s novel coronavirus vaccine to the public on Tuesday – and it’s looking good. 
In a 53-page briefing document posted o…

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