As Tanzania announces new Covid prevention measures after the new president instigates a change in response to the pandemic, correspondent Rhoda Odhiambo discusses the implications for the country. And celebrating the Windrush generation in theatre - nurses who came to the UK from the Caribbean to work in the NHS share their memories in a new play. Plus Claudia talks to Mohsen Rajabi about his new research surveying Mental Health in Iran - both parents and children - after 16 months of school closures and hears from 18 year old Parnia Abharian about her first hand experience. And the science of a baby's first poo! Presenter: Claudia Hammond Producer: Erika Wright (Picture: People come to wash their hands with chlorinated water in Dar es Salaam, Tanzania in March 2020. Photo credit: Ericky Boniphace/AFP/Getty Images.)