Fig. 3From: Leveraging 13 million responses to the U.S. COVID-19 Trends and Impact Survey to examine vaccine hesitancy, vaccination, and mask wearing, January 2021-February 2022Mask wearing most/all the time in public (Jan 2021-Feb 2022). Temporal trends in the prevalence of U.S. Facebook survey respondents reporting they were masks most or all of the time in public. X-axis indicates study month from January 2021 and to February 2022Back to article page