A pandemic is a good time to do vaccine trials. They signed up 44,000 volunteers and got 170 cases unbelievably quickly. People were highly motivated to volunte

A pandemic is a good time to do vaccine trials. They signed up 44,000 volunteers and got 170 cases unbelievably quickly. People were highly motivated to volunteer, making the enrollment faster, and the very high case rates in the US meant there for to their target very quickly. Also, 170 cases is a _lot_ in terms of phase III studies. Other than that, the vaccine is following basically the normal course. It won't get final approval until there is more time to monitor, but the EUA will be based upon saving lives now. For more, see: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4944327/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4944327/