Egypt once had the highest rate of hepatitis C in the world, but has now almost completely wiped out the liver attacking virus in less than 10 years. How did they do that?

Could the African mealworm be a solution to tackling plastic waste? Kenyan researchers say the larvae of the darkling beetle species native to Africa can digest plastic in their guts and degrade styrofoam, one the most harmful materials to the environment.

Also in the podcast, how Nigerian pet owners are having to make heartbreaking decisions about their animal companions as the high cost of living continues to squeeze finances.

Presenter: Audrey Brown Producers: Nyasha Michelle, Stefania Okereke, Aimie Liebovitz and Bella Hassan in London. Blessing Aderogba in Lagos Technical Producer: Philip Bull Senior Journalist: Patricia Whitehorne Editors: Alice Muthengi and Andre Lombard

A tribute to Susan Chilcott: James Jolly talks to Iain Burnside, Fiona Maddocks and David Sigall