Pfizer claims its COVID vaccine is 90 percent effective. Here’s what that actually means. ...Middle East

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Pfizer claims its COVID vaccine is 90 percent effective. Here’s what that actually means.
A 90 percent effectiveness is very impressive, but the rate is based on a relatively small number of people. (Pixabay/)On Monday, pharmaceutical company Pfizer announced the latest results for their coronavirus vaccine, which is now in late-stage clinical trials. The results, which were evaluated by an independent committee of experts (though not yet peer-reviewed), show that based on the information they have thus far, the drug is at least 90 percent effective in preventing COVID-19 among participants who had not previously been infected with the novel coronavirus.These results are promising, and are coming at a time when the world is anxiously awaiting positive news. However, there’s still

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