With booster shots on the horizon for some people, one of the biggest questions is: Am I still protected against COVID-19 if I've only had two doses of the vaccine? As science correspondent Michaeleen Doucleff) reports, the answer is...complicated.Read more )of Michaeleen's reporting on COVID immunity: https://n.pr/2XIQ6KX)Reach the show by emailing [email protected]).Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)
