In a " Morbidity and Mortality Weekly Report (MMWR) " issued by the Centers for Disease Control and Prevention , the following summary was declared :
-Two 2-dose mRNA COVID-19 vaccines (from Pfizer-BioNTech and Moderna) and a 1-dose viral vector vaccine (from Janssen [Johnson & Johnson]) are currently used in the United States.
-Among U.S. adults without immunocompromising conditions, vaccine effectiveness against COVID-19 hospitalization during March 11–August 15, 2021, was higher for the Moderna vaccine (93%) than the Pfizer-BioNTech vaccine (88%) and the Janssen vaccine (71%).
-Although these real-world data suggest some variation in levels of protection by vaccine, all FDA-approved or authorized COVID-19 vaccines provide substantial protection against COVID-19 hospitalization.
for complete report :
I look forward to a future report that declares :
-Among U.S. adults without immunocompromising conditions, vaccine effectiveness against COVID-19 hospitalization during ( a specified timeframe ) , was higher for the Novavax vaccine than the Moderna , Pfizer-BioNTech and the Janssen vaccine .