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Preliminary research finds some COVID-19 mutations may dampen vaccine effectiveness
RELATED: Psaki relinquishes podium to Fauci for pandemic update during 2nd Biden White House press briefingWith some, the antibodies didn't work as well against the virus -- activity was one-to-threefold less, depending on the mutation, said the study leader, Rockefeller’s Dr. Michel Nussenzweig.Advertisement"It’s a small difference but it is definitely a difference," he said.