A federal research institute in the US says it is developing a strain of the new coronavirus, which could one day be deliberately injected into volunteers to test whether experimental vaccines are effective, Euronews says.
Currently volunteers in vaccine trials receive the experimental vaccine or a placebo, and are then...
US Developing Strain Of Coronavirus For Future Vaccine Tests
Eurasia Review
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US developing strain of coronavirus for future vaccine tests
US developing strain of coronavirus for future vaccine tests
euronews