A student attends class in Mexico City Aug. 30, 2021. Mexico resumed on Monday in-person classes with health protocols to protect against COVID-19. (Photo by Montserrat Lopez/Xinhua)
A teacher gives a lesson at an elementary school in Mexico City Aug. 30, 2021. Mexico resumed on Monday in-person classes with health protocols to protect against COVID-19. (Photo by Luis Licona/Xinhua)
(210831) -- TLALNEPANTLA, Aug. 31, 2021 (Xinhua) -- A student has her temperature checked upon entering a middle school in Tlalnepantla, Mexico, Aug. 30, 2021. Mexico resumed on Monday in-person classes with health protocols to protect against COVID-19. (Photo by Francisco Canedo/Xinhua)
