The first human trial of a vaccine against COVID-19 began in Seattle, – McqOptions

MCQOPTIONS

1.	The first human trial of a vaccine against COVID-19 began in Seattle, US. What is the name of the vaccine?
A.	mRNA-1233
B.	mRNA-1723
C.	mRNA-1273
D.	tRNA-1273
Answer» D. tRNA-1273

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