1. World Health Organization, WHO Coronavirus (COVID-19) Dashboard, Erişim Tarihi:13/05/2021, Erişim Adresi: https://covid19.who.int/
2. World Health Organization, Coronavirus Disease, Erişim Tarihi:13/05/2021, Erişim Adresi: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/coronavirus-disease-answers?query=world+statistics+on+covid19&referrerPageUrl=https%3A%2F%2Fwww.who.int%2Femergencies%2Fdiseases%2Fnovel-coronavirus-2019%2Fcoronavirus-disease-answers
3. Bedford J, Enria D, Giesecke J, Heymann DL, Ihekweazu C, Kobinger G, et al. COVID-19: towards controlling of a pandemic. The Lancet 2020; 395 (10229): 1015-1018.
4. Demiray EKD, Çeviker SA. COVID-19: Aşı ve Toplumsal Korunma. Journal of Biotechnology and Strategic Health Research 2020; 1 (Özel Sayı):37-44.
5. World Health Organization, COVID-19 vaccines, Erişim Tarihi:11/01/2021, Erişim Adresi: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/covid-19-vaccines