Drugs and the FDABy: Mikkael A. Sekeres How the FDA was shaped by public health crises and patient advocacy, told against a background of the contentious hearings on the breast cancer drug Avastin. Food and Drug Administration approval for COVID 19 vaccines and the controversial Alzheimers drug Aduhelm made headlines, but few of us know much about how the agency does its work. Why is the FDA the ultimate US authority on a drugs safety and efficacy? In Drugs and the