Late on the night of Dec. 30 last year, an alert flashed across an online network known as ProMED, a monitoring system for emerging diseases used by hospitals around the world. “Urgent notice,” the notification said. “Pneumonia of unknown cause.”
The message relayed details of an unusual outbreak around a market in Wuhan, China, to more than 800,000 members on the ProMED network, which is run by the International Society of Infectious Diseases. Few details were known, but given the ferocity of the virus, it warned medical institutions in the region “to strengthen multidisciplinary professional forces such as respiratory, infectious diseases, and intensive medicine in a targeted manner … and improve emergency plans for medical treatment.”