1. World Health Organization. WHO announces COVID-19 outbreak a pandemic. 2020. https://www.euro.who.int/en/health-topics/health-emergencies/coronavirus-covid-19/news/news/2020/3/who-announces-covid-19-outbreak-a-pandemic. Accessed 12 Mar 2020.
2. Centers for Disease Control and Prevention. COVIDView: A Weekly Surveillance Summary of U.S. COVID-19 Activity. 2020. https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covidview.html. Accessed 04 June 2020.
3. Johns Hopkins Center for Systems Science and Engineering. Coronavirus COVID-19 Global Cases. 2020. https://coronavirus.jhu.edu/map.html. Accessed 04 June 2020.
4. The White House. 30 Days to Slow the Spread. 2020. https://www.whitehouse.gov/wp-content/uploads/2020/03/03.16.20_coronavirus-guidance_8.5x11_315PM.pdf. Accessed 31 Mar 2020.
5. Centers for Disease Control and Prevention. Estimated HIV Incidence and Prevalence in the United States, 2010–2016. 2019. https://www.cdc.gov/hiv/ppt/library/slidesets/cdc-hiv-incidence-prevalence-2010-2016.pptx. Accessed 04 Nov 2020.