Johnson & Johnson to Seek F.D.A. Authorization for Booster Shot October 4, 2021 Auto Bot Centers for Disease Control and Prevention, Coronavirus (2019-nCoV), Food and Drug Administration, Johnson & Johnson, Moderna Inc, Pfizer Inc, Regulation and Deregulation of Industry, United States Politics and Government, Vaccination and Immunization 0 The request, expected this week, comes after a study found the company’s vaccine was only 71 percent effective against hospitalization from Covid-19.