More than 1 in 5 Americans have received at least one dose of COVID-19 vaccine. Each day millions more people are being vaccinated, providing hope that we can soon gather with our friends and family safely. On March 12, 2021, the US reached 100 million vaccine doses administered in just 88 days—thanks to three safe and effective vaccines that have been distributed throughout the United States.
CDC recently released recommendations for fully vaccinated people as the first step in safely returning to normal activities.
Association between COVID-19 outcomes and mask mandates, adherence, and attitudes
Using an event study design, authors estimate the treatment effect of the introduction of mask mandates (shown on the vertical red line) on Z-scored population-normalized COVID-19 daily new confirmed cases, daily new hospitalization admissions proportion, and deaths across all 50 states and D.C. over the time period between February 1 and September 27, 2020.
Source: Dhaval Adjodah, Karthik Dinakar, Matteo Chinazzi, Samuel P. Fraiberger, Alex Pentland, Samantha Bates, Kyle Staller, Alex Vespignani, Deepak L. Bhatt. Association between COVID-19 Outcomes and Mask Mandates, Adherence, and Attitudes.