Diseases, Conditions, Syndromes

North Korea insists it is free of coronavirus

North Korea remains totally free of the coronavirus, a senior health official in Pyongyang has insisted, despite mounting scepticism overseas as confirmed global infections near one million.

Medical research

Wanted: Dutch poop for scientific study

Three top Dutch medical schools are asking thousands of travellers to tropical countries to donate stool samples on return for a study into the rise in antibiotic-resistant bacterial infections.