Health
Surging Covid-19 Cases in U.S., Other Countries Could Speed Up Vaccine Studies – The Wall Street Journal
Pivotal studies depend on subjects being exposed, which is likely to happen faster in places where the virus is spreading rapidly
Surging coronavirus cases in the U.S. and abroad may speed up the race to prove whether experimental vaccines work.
To demonstrate if a vaccine works, a certain number of study subjects must be exposed to the target virus so researchers can see if significantly fewer vaccinated subjects become sick compared with those who didnt get the shots.
When……
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