- Pfizer’s and Moderna’s shots were at least 10 times less effective against variant in a new study.
- Researchers tested the vaccines on a variant first found in South Africa, which is now in 20 states.
- A mutation on the variant called E484K appeared to be a “major contributor,” the study authors said.
According to a lab study, COVID-19 vaccines from Moderna and Pfizer-BioNTech appear significantly less effective against the coronavirus variant first found in South Africa, reports Yahoo News.
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