References
  1. Coronavirus (COVID-19) in the UK https://coronavirus.data.gov.uk/ extracted 4/5/2020
  2. Our World in Data Coronavirus Pandemic (COVID-19) https://ourworldindata.org/coronavirus / extracted 2/5/2020
  3. United Nations, Department of Economic and Social Affairs, Population Division (2019). World Population Prospects 2019, Online Edition. Rev. 1. https://population.un.org/wpp/Download/Standard/Interpolated/ extracted 2/5/2020
  4. BBC News Coronavirus vaccine: When will we have one? 23/4/2020 https://www.bbc.co.uk/news/health-51665497.dit
  5. British Society for Immunology: John Snow’s Pump 1854 https://www.immunology.org/john-snows-pump-1854