White House COVID-19 adviser Anthony Fauci on Aug. 15 downplayed a recent study from a prominent medical research center that deemed the Pfizer vaccine less effective than the Moderna vaccine.
The Mayo Clinic and Cambridge-based biotech company nference, found in the study that both mRNA COVID-19 vaccines’ effectiveness dropped in the month of July. The researchers, while saying the vaccines provided good protection against the virus, found that Moderna’s vaccine effectiveness was 76 percent, as compared with Pfizer’s 42 percent.