A worker wearing protective gears sprays disinfectant as a precaution on a train against the new coronavirus at Suseo Railway Station in Seoul, South Korea, Tuesday, Feb. 25, 2020. 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. (Lee Ji-eun/Yonhap via AP), APTOPIX