1. The New York Times. Tracking Coronavirus Cases at U.S. Colleges and Universities 2021 [updated March 2 2021; cited 2021 3.6.2021]. Available at:https://www.nytimes.com/interactive/2021/us/college-covid-tracker.html. Accessed 24 Dec 2021.
2. Centers for Disease Control and Prevention (CDC). Symptoms of COVID‐19 2021 [updated 02.22.2021; cited 06.28.2021. Available at:https://www.cdc.gov/coronavirus/2019‐ncov/symptoms‐testing/symptoms.html. Accessed 24 Dec 2021.
3. Centers for Disease Control and Prevention. Post‐COVID Conditions 2021 [updated July 12 2021; cited 2021 7.21.2021]. Available at:https://www.cdc.gov/coronavirus/2019-ncov/long-term-effects.html. Accessed 24 Dec 2021.
4. Long COVID in a prospective cohort of home-isolated patients
5. Influenza Vaccination Among College and University Students