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