A 37 year-old healthcare assistant develops a cough. Next day, she wakes with a fever (which she measures at 37.4°C) and shortness of breath. She manages her condition at home for several days, experiencing increasing tiredness, loss of appetite, and a persistent dry cough. On the fifth day of her illness, she develops mild diarrhoea, and her chest feels quite tight. She takes her temperature, which has gone up to 38.1°C. Feeling unwell, she contacts her GP surgery for advice. She would like someone to listen to her chest, but the receptionist tells her not to come to the surgery and offers her the choice of a telephone or video consultation. She was previously well apart from mild asthma (on occasional salbutamol). Five years ago, she took citalopram for anxiety. She is a single parent of three children.