As concern grows, China, South Korea report more virus cases

China and South Korea on Tuesday reported more cases of a new viral illness that has been concentrated in North Asia but is causing global worry as clusters grow in the Middle East and Europe. China reported 508 new cases and another 71 deaths, 68 of them in the central city of Wuhan, where the epidemic was first detected in December. The updates bring mainland China's totals to 77,658 cases and 2,663 deaths. South Korea now has the second-most cases in the world with 893 and has had a near 15-f