The Urgent Mystery of Where Viruses Hide

The Urgent Mystery of Where Viruses Hide: Some viruses appear to vanish when outbreaks dissipate, only to emerge again. Scientists don’t always know which animals they lurk in — and how to stop them from spilling back over. By David Quammen David Quammen is a science journalist and author of 19 books, including “Breathless,” about the origins and evolution of Covid-19, and