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By Jonathan Corum and Carl Zimmer

Updated Dec. 9, 2020

The German company BioNTech partnered with Pfizer to develop and test a coronavirus vaccine known as BNT162b2. A clinical trial demonstrated that the vaccine has an efficacy rate of 95 percent in preventing Covid-19.

Read the article here:

https://www.nytimes.com/interactive/2020/health/pfizer-biontech-covid-19-vaccine.html?smid=tw-share