Workers wearing protective gears arrive to spray disinfectant as a precaution against the coronavirus at a market in Seoul, South Korea, Monday, Feb. 24, 2020. South Korean President Moon Jae-in said his government had increased its anti-virus alert level by one notch to “Red,” the highest level. It allows for the temporary closure of schools and reduced operation of public transportation and flights to and from South Korea. (AP Photo/Ahn Young-joon)