New research on Covid vaccination in prisons. Plus can financial incentives like free tuition or free cruises encourage people to get the jab? Samara Linton reports on some surprising examples, while Professor Stephen Higgins reviews the evidence. And does the use of words like "provider" or "customer" subtly change healthcare? Claudia's guest is Matt Fox, Professor of Global Health Epidemiology at Boston University.

Presenter: Claudia Hammond
Producer: Erika Wright

(Picture: Prisoners at the La Modelo Correctional Facility wait to receive a Covid-19 vaccination administered by medical workers in Bogota, Colombia in July 2021. Photo credit: Juancho Torres/Anadolu Agency/Getty Images.)