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As Tanzania joins Covax, Rhoda Odhiambo discusses the challenges ahead and says 'joining' makes it sound simple but the requirements that need to be put in place are far from simple. Also,results from the first national TB prevalence survey in South Africa shows that the disease is found more in men and young people than previously recognised. Claudia talks to professor Martie van der Walt, director of the TB platform of the South African Medical Research Council while Taurai Maduna reports from a TB screening clinic in Diepsloot, Gauteng Province. Plus, professor Catherine Loveday on new research assessing lockdown memories and what they mean.

Claudia's studio guest is Matt Fox from Boston University.

Presenter: Claudia Hammond
Producer: Erika Wright

(Photo: Portrait of a young man wearing a face mask in Nungwi, Tanzania. Credit: Jasmin Merdan/Getty Images)