On the front line of South Korea's coronavirus battle [PHOTOS]

A South Korean soldier in protective gear cleans his goggles before spraying disinfectant as a precaution against the new coronavirus on a street in Seoul, Friday. South Korea's President Moon Jae-in has criticized Japan's 14-day quarantine of all visitors from South Korea due to the viral outbreak, demanding that Tokyo immediately withdraw the "excessive and irrational measures." (AP Photo/Lee Jin-man)

A South Korean soldier sprays disinfectant in Seoul on Thursday as a precaution against the coronavirus. Italy closed all schools and universities and barred fans from sporting events for the next few weeks, as governments trying to curb the spread of the virus resorted to increasingly sweeping measures that transform the way people work, shop, pray and amuse themselves. (AP Photo/Lee Jin-man)

South Korean Army soldiers spray disinfectant as a precaution against the coronavirus on a street in Seoul, Friday. (AP Photo/Ahn Young-joon)

Medical staff in protective suits interview people with suspected symptoms of the new coronavirus at a testing facility in Seoul, Wednesday. The epidemic shifted increasingly westward toward the Middle East, Europe and the United States on Tuesday, with governments taking emergency steps to ease shortages of masks and other supplies for front-line doctors and nurses. (AP Photo/Ahn Young-joon)

Medical staff at a testing facility in Seoul check documents as they wait for people with suspected symptoms of the new coronavirus, Wednesday. (AP Photo/Ahn Young-joon)

Medical workers from the Kyungpook National University hospital transfer a patient in Daegu, South Korea, Wednesday. (Photo by Lee Sang-ho/Xinhua)

Workers spray disinfectant as a precaution against the new coronavirus at a department store in Seoul, Monday. South Korea has the world's second-highest number of virus cases. (AP Photo/Lee Jin-man)