1. Covid-19: Upgrading to FFP3 respirators cuts infection risk, research finds
2. UK Health Security Agency. Infection prevention and control for seasonal respiratory infections in health and care settings (including SARS-CoV-2) for winter 2021 to 2022. Dec 2021. https://www.gov.uk/government/publications/wuhan-novel-coronavirus-infection-prevention-and-control/covid-19-guidance-for-maintaining-services-within-health-and-care-settings-infection-prevention-and-control-recommendations.
3. DAUK send open letter to Jenny Harries and Ian Peters requesting urgent amendment to the outdated PPE guidance issued by the UKHSA. Doctors’ Association UK. Dec 2021. https://www.dauk.org/news/2021/12/20/dauk-send-open-letter-to-jenny-harries-and-ian-peters-requesting-urgent-amendment-to-the-outdated-ppe-guidance-issued-by-the-ukhsa.