New antiviral Covid pill

Trials stopped early of a new Covid antiviral pill, Molnupiravir, as it may cut numbers of people in hospital by about a half. Claudia Hammond discusses the ethical questions of who should be given it. Plus Unicef report on findings about childhood mental health before and during the pandemic. And a new exhibition on the researchers and trial participants outwitting cancer. Presenter: Claudia Hammond Producer: Erika Wright (Photo: An experimental Covid-19 treatment pill called Molnupiravir. Photo credit: Merck/Reuters)