1. Epidemiology of Viral Infections
2. Cascella M, Rajnik M, Cuomo A, Dulebohn SC, Di Napoli R. Features, evaluation and treatment Coronavirus (COVID 19). StatPearls [Internet]; 2020. Available from: http://www.ncbi.nlm.nih.gov/pubmed/32150360. Accessed September 23, 2021.
3. Ghebreyesus TA. WHO director-general’s opening remarks at the media briefing on COVID 19-11 March 2020 [Internet]. WHO Director General’s speeches; 2020:4. Available from: https://www.who.int/director-general/speeches/who-director-general-s-opening-remarks-at-the-media-briefing-on-COVID19—11-march-2020%0Ahttps://www.who.int/director-general/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-cov. Accessed September 23, 2021.
4. Johns Hopkins Coronavirus Resource Center. No title [Internet]; 2021 [cited July 13, 2021]. Available from: https://coronavirus.jhu.edu/map.html. Accessed September 23, 2021.
5. World Health Organization. Tracking SARS-CoV-2 variants [Internet]. Available from: https://www.who.int/en/activities/tracking-SARS-CoV-2-variants/. Accessed September 23, 2021.