Pilishvili T, Fleming-Dutra KE, Farrar JL, Gierke R, et al. Interim Estimates of Vaccine Effectiveness of Pfizer-BioNTech and Moderna COVID-19 Vaccines Among Health Care Personnel - 33 U.S. Sites, January-March 2021. MMWR Morb Mortal Wkly Rep 2021;70:753-758.
PMID: 34014909