Breaking Down What COVID-19 Vaccine Effectiveness Means

The U.S. now has three safe and effective COVID-19 vaccines being shipped around the country and making it into people’s arms. All meet the U.S. Food and Drug Administration’s threshold for protecting people from COVID-19 disease. Yet two of them are about 95% efficacious, while another is 66% efficacious, which may make it tempting to rank them, and assume that people receiving the 66% efficacious shot are somehow less protected against COVID-19.
That’s not the case, however, since it’s not really possible to compare the vaccines to each other. In the table below, we’ve laid out what goes into that so-called vaccine efficacy number, and how you should evaluate the currently authorized vaccines:

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Source: TIME: Health - March 9, 2021 Category: Consumer Health News Authors: Alice Park Tags: Uncategorized COVID-19 Source Type: news