AdvertisementHow this Brazilian doc got nearly every person in her city to take a COVID vaccineOctober 12, 2022Nurith AizenmanfacebookEmailDr. Gabriela Kucharski is the secretary of health for Toledo, a city in southwestern Brazil. Amid the worst of the pandemic, she convinced Pfizer to choose Toledo for an experiment that would provide free COVID vaccines for every resident. (Ian Cheibub for NPR)