The vaccine’s efficacy rate dropped from 72 percent in the United States to just 57 percent in South Africa, where a highly contagious variant is driving most cases.
Published: January 29, 2021 at 02:00PM
from NYT Health https://ift.tt/3thE4U2
The vaccine’s efficacy rate dropped from 72 percent in the United States to just 57 percent in South Africa, where a highly contagious variant is driving most cases.
Published: January 29, 2021 at 02:00PM
from NYT Health https://ift.tt/3thE4U2
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