Good news that a new treatment for Covid could help one in three people in hospital. Results are from the Recovery trial in the UK using an infusion of two antibodies made in the laboratory which bind to the virus and stop it replicating. But it is expensive and those people who haven't made their own antibodies should be given the treatment. And Project S - the unique experiment that vaccinated a whole town in Brazil. Claudia speaks to Dr Ricardo Palacios, clinical studies director at the Butantan Institute in Sao Paulo, leading the research. Plus a ground breaking trial in Yogyakarta city, Indonesia, that has cut cases of Dengue Fever by 77% by infecting mosquitoes with a "miraculous" bacteria.

Presenter: Claudia Hammond

(Picture: A doctor holds a vial of monoclonal antibodies, a new treatment for Covid-19. Photo credit: Cristian Storto Fotografia/Getty Images.)