1. World Health Organization.Public health response to biological and chemical weapons.2004.http://www.who.int/csr/delibepidemics/biochemguide/en/(accessed 19/04/2020).
2. World Health Organization.Summary of probable SARS cases with onset of illness from 1 November 2002 to 31 July 2003.2004.https://www.who.int/csr/sars/country/table2004_04_21/en(accessed 19/04/2020).
3. I. Anaesthesia and SARS
4. Public Health England.Guidance on infection prevention and control for COVID‐19.https://www.gov.uk/government/publications/wuhan‐novel‐coronavirus‐infection‐prevention‐and‐control(accessed 19/04/2020).