1. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and coronavirus disease-2019 (COVID-19): The epidemic and the challenges
2. COVID-19 infection: Emergence, transmission, and characteristics of human coronaviruses
3. U.S. Department of Health and Human Services . Pandemic Influenza Plan. 2017 Update [Internet].
4. World Health Organization . WHO Director-General’s opening remarks at the media briefing on COVID-19. WHO Director General’s speeches [Internet, 2020: 4. https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19-11-march-2020
5. Madhav N , Oppenheim B , Gallivan M , et al . Chapter 17: Pandemics: risks, impacts, and mitigation. In: Jamison DT , Gelband H , Horton S , et al , eds. Disease control priorities: improving health and reducing poverty. 3rd edn. Washington, DC: The International Bank for Reconstruction and Development / The World Bank, 2017. https://www.ncbi.nlm.nih.gov/books/NBK525302/