The technique, called a human challenge trial, has been used to evaluate other vaccines.
Published: July 1, 2020 at 09:05PM
from NYT Health https://ift.tt/2AlOlI1
The technique, called a human challenge trial, has been used to evaluate other vaccines.
Published: July 1, 2020 at 09:05PM
from NYT Health https://ift.tt/2AlOlI1