1. 7. Small pox is dead. World Health Organization website. https://www.who.int/csr/disease/smallpox/WHO_RAS_SEP_ID0556_WorldHealth_May1980_ENG.pdf?ua=1. Published May 1980. Accessed April 11, 2020.
2. 6. A global approach is the only way to fight COVID-19, the UN says as it launches humanitarian response plan. UNICEF website. https://www.unicef.org/press-releases/global-approach-only-way-fight-covid-19-un-says-it-launches-humanitarian-response. Accessed April 12, 2020.
3. 2. Carlsson-Szlezak, P , Reeves, M , Swartz, P . Understanding the economic shock of coronavirus. Harvard Business Review website. https://hbr.org/2020/03/understanding-the-economic-shock-of-coronavirus. Published March 27, 2020. Accessed March 27, 2020.
4. 1. WHO Director-General’s opening remarks at the media briefing on COVID-19—11 March 2020. World Health Organization website. https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---11-march-2020. Published March 11, 2020. Accessed April 12, 2020.
5. Case Report: Death due to COVID-19 in Three Brothers