WASHINGTON - All three COVID-19 vaccines approved for emergency use by the FDA — Pfizer, Moderna and Johnson & Johnson — are effective against the highly infectious delta variant, the nation’s leading infectious disease expert said during a White House press briefing Thursday. "The world is understandably worried about the delta virus variant," Dr.
Anthony Fauci, the director of the U.S. National Institute of Allergy and Infectious Diseases, said. "The vaccines indeed are effective against it."Fauci cited various studies, including three separate real-world studies which showed Pfizer was 79%, 88% and 96% effective against the delta variant.Fauci noted a study in Scotland, which showed two doses of the Pfizer vaccine were 79% protective.