Dosing and Distribution

People have a lot of questions about the coronavirus vaccine - make that vaccines. That includes the logic behind dosing decisions. Arun Rath looks for answers from Dr. Paul Sax, clinical director of the infectious diseases division at Brigham and Women's Hospital. Arun also gets Dr. Sax's take on President-elect Joe Biden's ambitious plan to vaccinate 100 million people in his first 100 days in office.