Join the conversation
Log in or create an account to leave a comment
Log In
Scientists determine the
effectiveness of vaccines by waiting to see how
many trial volunteers develop symptoms of covid-19
effectiveness of vaccines by waiting to see how
many trial volunteers develop symptoms of covid-19
Full Transcript
00:00:01.000 --> 00:00:03.767
Scientists determine the
effectiveness of vaccines
00:00:03.869 --> 00:00:06.503
by waiting to see how
many trial volunteers
00:00:06.606 --> 00:00:09.473
develop symptoms of covid-19.
Want This Clip in HD?
Upgrade for HD/4K downloads and unlimited access. Upgrade now →
Movie Summary
A riveting 90-minute report about the race to develop, manufacture and distribute a vaccine for Covid-19 and end the worldwide pandemic.