Bezold, C., Sizemore, E., Halter, H., Bartlett, D., Hay, K. and Ali, H. (2022) “Sara Alert: An automated symptom monitoring tool for COVID-19 in 11 jurisdictions in the United States, June – August, 2021”, Online Journal of Public Health Informatics, 14(1). doi: 10.5210/ojphi.v14i1.12449.