1. Michigan.gov (State of Michigan Coronavirus). 2021. https://www.michigan.gov/coronavirus/
2. CDC (Centers for Disease Control and Prevention) COVID data tracker. U.S. Department of Health & Human Services. 2021. https://covid.cdc.gov/covid-data-tracker/#county-view
3. Moore KA, Lipsitch M, Barry JM, Osterholm MT. COVID-19: The CIDRAP Viewpoint. Regents of the University of Minnesota.2020. https://www.cidrap.umn.edu/sites/default/files/public/downloads/cidrap-covid19-viewpoint-part1_0.pdf
4. MacDonald NE. Vaccine hesitancy: definition, scope and determinants. Vaccine. 2015;33(34):4161–4. https://doi.org/10.1016/j.vaccine.2015.04.036.
5. SAGE Working Group. Report of the SAGE working group on vaccine hesitancy. World Health Organization. 2014. https://www.who.int/immunization/sage/meetings/2014/october/1_Report_WORKING_GROUP_vaccine_hesitancy_final.pdf