What do we know about the COVID-19 (coronavirus) vaccine?

Unchallenged

A coronavirus vaccine developed by BioNTech can prevent more than 90% of people from getting COVID-19 (as of November 2020).

A vaccine by Pfizer and BioNTech has been tested on 43,500 people in six countries and no safety concerns have been raised. The data shows that two doses, three weeks apart, are needed. The trials—in US, Germany, Brazil, Argentina, South Africa and Turkey—show 90% protection.

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