Health workers in protective gear prepare for visitors at a temporary screening clinic for the coronavirus in Seoul, South Korea, Monday, March 28, 2022. South Korea’s new daily COVID-19 cases fell below 200,000 for the first time in 25 days Monday, as the omicron-driven virus peak appears to have passed amid growing concerns over the spread of the even more transmissible “stealth omicron” subvariant. (AP Photo/Lee Jin-man)

Digital screens showing safety precautions against the coronavirus are seen in a subway train in in Seoul, South Korea. The country added 187,213 new coronavirus infections, including 25 cases from overseas, bringing the total caseload to 12,003,054, the Korea Disease Control and Prevention Agency (KDCA) said. (AP Photo/Ahn Young-joon)

A man wearing a face mask to help curb the spread of the coronavirus walks near a banner reminding the precautions against the coronavirus at a subway station in Seoul, South Korea. More than 10 million cases out of the 12 million COVID-19 infections so far have been reported since last month. (AP Photo/Lee Jin-man)