Alva Review-Courier -

Key events in development of Pfizer's COVID-19 vaccine

 

November 8, 2020



Key events in the development of a COVID-19 vaccine by partners Pfizer Inc. and Germany's BioNTech:

March 17 — Pfizer and BioNTech announce plans to jointly develop a COVID-19 vaccine using BioNTech's technology.

April 29 — Testing of four vaccine candidates begins with volunteers in Germany, one of six countries in the testing plan.

May 5 — Testing expands to the United States.

July 1 — Preliminary data shows one of four candidates appears to stimulate the immune system, is well tolerated.

July 22 — U.S. government agrees to buy 100 million vaccine doses for $1.95 billion, with...



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