Sizing up the second booster: If, and when, to get another COVID-19 shot

Many people over age 50 are trying to decide whether to get their fourth dose of COVID-19 vaccine now that the CDC has recommended it. UT Southwestern Infectious Diseases specialists Dr. Pearlie Chong and Dr. Reuben Arasaratnam weigh in on the benefits of a second booster, who needs it most, and the timing of your fourth dose. "What to Know" is hosted by UTSW's Executive Vice President for Health System Affairs Dr. John Warner.