A staff member checks vaccines at a Beijing factory built by Sinovac to produce a COVID-19 coronavirus vaccine. Sinovac is one of 11 Chinese companies approved to carry out clinical trials of potential vaccines.

A staff member checks vaccines during a media tour of a new factory built to produce a COVID-19 coronavirus vaccine at Sinovac, one of 11 Chinese companies approved to carry out clinical trials of potential coronavirus vaccines, in Beijing on September 24, 2020. (Photo by WANG ZHAO / AFP) (Photo by WANG ZHAO/AFP via Getty Images)