booster shots

Health officials argue the protection of the COVID vaccine booster wanes over time and say some people need a second booster. But other infectious disease experts say three shots are enough for now.

If approved, this would be the second booster shot Moderna has issued for people ages 18 and up.

Researchers in the U.K. have the first estimates for how long a third shot of the Pfizer vaccine will last. The findings are mixed.

On this episode of Petrie Dish, host Bonnie Petrie speaks with Dr. Tracey Baas of Texas Biomedical Institute about timing, mixing and matching, who should be getting the booster and more.