A worker in overalls screen for fever at the entrance to a supermarket in Beijing Thursday, Feb. 27, 2020. South Korea and China each reported hundreds more virus cases Thursday as the new illness persists in the worst-hit areas and spreads beyond borders. (AP Photo/Ng Han Guan)

Stadium seats are empty during the Korean Basketball League between Incheon Electroland Elephants and Anyang KGC clubs in Incheon, South Korea, Wednesday, Feb. 26, 2020. The basketball game held without spectators as a precaution against the COVID-19. (Yun Tai-hyun/Yonhap via AP)

A worker wearing protective gears sprays disinfectant as a precaution against the coronavirus at a shopping street in Seoul, South Korea, Thursday, Feb. 27, 2020. The new illness persists in the worst-hit areas and spreads beyond borders. (AP Photo/Ahn Young-joon)

Stadium seats are empty during the pro volleyball V-league between OK Savingbank Rush&Cash and KB Insurance Stars in Ansan, South Korea, Wednesday, Feb. 26, 2020. The volleyball game held without spectators as a precaution against the COVID-19. (Hong Ki-won/Yonhap via AP)

A man wearing a mask visits a beach as snow-capped Mount Fuji is visible in the distance in Fujisawa, Japan, Thursday, Feb. 27, 2020. According to local businesses in the area, the number of visitors has dropped significantly since the outbreak of COVID-19. (AP Photo/Jae C. Hong)