High school students eat a lunch at a school cafeteria which has screens on tables for preventing infections, as schools reopen following the global outbreak of the coronavirus disease (COVID-19), in Ulsan, South Korea, May 20, 2020. Yonhap/via REUTERS ATTENTION EDITORS – THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. NO RESALES. NO ARCHIVE. SOUTH KOREA OUT. NO COMMERCIAL OR EDITORIAL SALES IN SOUTH KOREA.