Sunday, 16 May 2021 08:10 AM MYT A girl works during study hall at Parkland High School in Allentown, Pennsylvania, US April 13, 2021. — Reuters pic Subscribe to our Telegram channel for the latest updates on news you need to know. MAY 15 — Schools in the United States should continue to use masks for the 2020-2021 academic year as all students will not be fully vaccinated, the US Centers for Disease Control and Prevention (CDC) said yesterday. The CDC in its latest guidance said all kindergarten through grade 12 schools “should implement and layer prevention strategies and should prioritise universal and correct use of masks and physical distancing.”