1. World Health Organization. Coronavirus overview; 2020. Available from: https://www.who.int/health-topics/coronavirus#tab=tab_1. Accessed February 1, 2022.
2. Mild or Moderate Covid-19
3. Validation of Predictors of Disease Severity and Outcomes in COVID-19 Patients: A Descriptive and Retrospective Study
4. World Health Organization. Impact of COVID-19 on people’s livelihoods, their health and our food systems. Joint statement by ILO, FAO, IFAD and WHO; October 13, 2020. Available from: https://www.who.int/news/item/13-10-2020-impact-of-covid-19-on-people’s-livelihoods-their-health-and-our-food-systems. Accessed February 1, 2022.
5. SARS-CoV-2 B.1.617.2 (Delta) Variant COVID-19 Outbreak Associated with a Gymnastics Facility — Oklahoma, April–May 2021