Here is a study carried out across >200 countries that showed that among all interventions studied, closing educational institutions was the 2nd most effective. Importantly, the impact on R was similar for pre-school, primary & secondary school settings.https://t.co/DwgoiAEiFM pic.twitter.com/W9XSsaCf90

— Dr. Deepti Gurdasani (@dgurdasani1) January 5, 2021