One or our listeners, Katharine, asks whether mouthwash can help stop the spread of coronavirus. We hunt down the answer with the help of biochemist Valerie O’Donnell, from the University of Cardiff, and our own Dr Margaret McCartney. Then it’s our turn in the dentist’s chair. Dentistry is up close and personal with a fair amount of splatter, the perfect place for coronavirus to spread. So dentist Paul Woodhouse and University of Newcastle dentist and researcher, Richard Holliday, are on to explain how to make it safe. PRESENTER: James Gallagher PRODUCER: Beth Eastwood