1. World Health Organization (WHO) “Q&A on coronaviruses (COVID-19).” [Online]. Available: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/question-and-answers-hub/q-a-detail/q-a-coronaviruses. [Accessed: 25-Jul-2020]. World Health Organization (WHO) “Q&A on coronaviruses (COVID-19).” [Online]. Available: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/question-and-answers-hub/q-a-detail/q-a-coronaviruses. [Accessed: 25-Jul-2020].
2. World Health Organization (WHO) “WHO Director-General's opening remarks at the media briefing on COVID-19 - 11 March 2020.” [Online]. Available: https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19—11-march-2020. [Accessed: 25-Jul-2020]. World Health Organization (WHO) “WHO Director-General's opening remarks at the media briefing on COVID-19 - 11 March 2020.” [Online]. Available: https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19—11-march-2020. [Accessed: 25-Jul-2020].
3. Healthline Media UK “Coronaviruses: Symptoms treatments and variants.” [Online]. Available: https://www.medicalnewstoday.com/articles/256521#covid-19. [Accessed: 25-Jul-2020]. Healthline Media UK “Coronaviruses: Symptoms treatments and variants.” [Online]. Available: https://www.medicalnewstoday.com/articles/256521#covid-19. [Accessed: 25-Jul-2020].