CT officials: Resume use of Johnson & Johnson COVID vaccine Mobile units will continue using Pfizer and Moderna shots for now, health department says Ashley Andrews, pharmacist, puts Johnson & Johnson COVID-19 vaccine in a syringe. State health officials have directed vaccine providers in Connecticut to resume use of the Johnson & Johnson COVID-19 shot, following a decision by the Centers for Disease Control and Prevention to lift a pause on the immunization. The CDC and the U.S. Food and Drug Administration had urged states to stop administering the Johnson & Johnson vaccine on April 13 after six cases of rare blood clotting were reported among women who received the shot.