A new study estimates that two-thirds of coronavirus cases exported from mainland China remain undetected worldwide.
In less than two months, the virus has spread to 29 countries and territories outside of mainland China, with a total of more than 1,000 confirmed cases.
Cathy He
EDITOR
Cathy He is the politics editor at the Washington D.C. bureau. She was previously an editor for U.S.-China and a reporter covering U.S.-China relations.