1. National infection prevention and control manual for England. 14 April 2022. www.england.nhs.uk/wp-content/uploads/2019/03/C1244_National-infection-prevention-and-control-manual-for-England_April-2022.pdf.
2. NHS England. Next steps on IPC: publication of revised UK infection prevention control. 14 April 2022. www.england.nhs.uk/wp-content/uploads/2019/03/C1630_Next-steps-on-IPC-Publication-of-revised-UK-Infection-Prevention-and-Control-IPC-Guidance-and-an-IPC-Man.pdf?utm_campaign=856720_.
3. Thomas R. “Brutal” NHS pressures stop covid testing. www.independent.co.uk/news/health/covid-tests-stop-hospital-nhs-b2057217.html.