Updated Moderna COVID-19 Booster Didn’t Improve Clinical Efficacy: Study

Updated Moderna COVID-19 Booster Didn’t Improve Clinical Efficacy: Study
A healthcare worker prepares COVID-19 vaccines at a clinic in Florida on May 20, 2021. Joe Raedle/Getty Images
Zachary Stieber
Zachary Stieber
Senior Reporter
|Updated:
0:00

Moderna’s updated COVID-19 vaccine was not more effective at preventing COVID-19 infection, according to a new study.

Researchers funded by Moderna analyzed the updated shot, which contains elements of the Wuhan virus strain and the BA.1 strain, in comparison to the old booster, which was only targeted at the Wuhan variant. They recorded more participants contracting COVID-19 in the group who received the updated booster.

Zachary Stieber
Zachary Stieber
Senior Reporter
Zachary Stieber is a senior reporter for The Epoch Times based in Maryland. He covers U.S. and world news. Contact Zachary at [email protected]
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