1. USA Facts.Coronavirus locations: COVID‐19 map by county and state.https://usafacts.org/visualizations/coronavirus-covid-19-spread-map/. Accessed October 28 2020.
2. Variation in COVID-19 outbreaks at the US state and county levels
3. U.S. county‐level characteristics to inform equitable COVID‐19 response;Chen JT;medRxiv,2020
4. New York State Department of Health.COVID‐19 fatalities.https://covid19tracker.health.ny.gov/views/NYS‐COVID19‐Tracker/NYSDOHCOVID‐19Tracker‐Fatalities?%3Aembed=yes&%3Atoolbar=no&%3Atabs=n#/views/NYS%252dCOVID19%25. Accessed May 9 2020.
5. Patterns of individualism and collectivism across the United States.