PFIZER mRNA - NEVER TESTED FOR ABILITY TO PREVENT INFECTION OR TRANSMISSION... This is Deborah Birx, former Covid 19 Response Coordinator. This interview happened in the past couple of days. Here she discusses the "efficacy" of the Covid vaccines, and she states: "It was scientifically studied TO PREVENT SEVERE DISEASE. People became confused when we began to make claims that it did more than what was studied. Remember all those original studies WE DIDN'T TEST PATIENTS UNLESS THEY HAD SYMPTOMS.