Margaret McCartney on COVID-19 and how the military has been deployed to get protective equipment supplies to critical care staff. Dean of the Faculty of Intensive Care Medicine, Dr Alison Pittard tells of the difficult ethical decisions staff are facing. And Professor Carl Heneghan - suffering from COVID-19 symptoms himself - explains the importance of fast action when treating secondary pneumonia in the elderly; while Deirdre Hollingsworth explains the term "Viral Load". Plus Margaret McCartney visits the famous Belford Hospital in Fort William - specialising in hostile environment trauma - and hears a story of intense mountain rescue.