effectiveness

Effectiveness of mRNA Vaccines Has Dropped Significantly, as Low as 46%, Study Shows

A new study, conducted by researchers at the Mayo Clinic, found that the effectiveness of the Moderna and Pfizer vaccines have decreased significantly.

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Effectiveness of Some COVID-19 Vaccines Has Dropped Significantly: Study

The effectiveness of the two most widely used COVID-19 vaccines in the United States has dropped significantly in July, a new study found.

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