US company to produce millions of coronavirus vaccine doses by 2020's end
Pfizer, BioNtech and other companies are racing to develop a vaccine, since there are currently no approved treatments and only mixed results of medicines under study against the virus.
A researcher at the University of Pittsburgh works on a COVID-19 vaccine candidate, a fingertip-sized patch with dissolvable microscopic needles, in Pittsburgh, Pennsylvania, U.S.(photo credit: REUTERS)ByREUTERS