1. Worldometer; COVID-19 CORONAVIRUS PANDEMIC. https://www.worldometers.info/coronavirus/. Accessed December 1, 2022
2. Johns Hopkins University; Coronavirus Dasboard. https://coronavirus.jhu.edu/map.html. Accessed December 1 13, 2022
3. Center for Infectious Disease Research and Policy; University of Minnesota, USA; Estimate: Less than half the world has had COVID-19. https://www.cidrap.umn.edu/news-perspective/2022/04/estimate-less-half-world-has-had-covid-19. Accessed October 13, 2022
4. Cakir B (2020) COVID-19 in Turkey: Lessons Learned. J Epidemiol Glob Health 10(2):115–117
5. Minni A, Ralli M, Candelori F, et al (2021) Lessons learned from COVID-19 pandemic in Italy – A commentary. Bosn J Basic Med Sci 21(1):117–119