Coronavirus Vaccine Tracker
By Jonathan Corum, Denise Grady, Sui-Lee Wee and Carl ZimmerUpdated July 27, 2020
Researchers around the world are developing more than 165 vaccines against the coronavirus, and 27 vaccines are in human trials. Vaccines typically require years of research and testing before reaching the clinic, but scientists are racing to produce a safe and effective vaccine by next year.
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