In the week that a case of Ebola has been confirmed in the Democratic Republic of Congo, the WHO calls for support to help at-risk countries to make lifesaving drugs available in case the virus spreads.

The UK researchers who saved many thousands of lives with Covid treatments are now testing antivirals against monkeypox.

And New Scientist's medical writer Clare Wilson explains how long Covid lingers in our bodies - and why thinking hard makes you tired.

Presenter: Claudia Hammond
Producer: Erika Wright

(Image: Health workers helping an Ebola patient outside an isolation tent, Beni, Democratic Republic of Congo. Credit: Fiston Mahamba / SOPA Images / LightRocket via Getty Images)