The United Nations’ health agency on Tuesday urged countries to suspend the sale of live animals captured from the wild in food markets as an emergency measure, saying wild animals are a leading source of emerging infectious diseases like the coronavirus. The Associated Press reports that the World Health Organization, backed by key partners, issued new guidance saying that animals — particularly wild animals — “are the source of more than 70 percent of all emerging infectious diseases in humans, many of which are caused by novel viruses.”