The aim of the Unlinked Anonymous Monitoring (UAM) Survey of People Who Inject Drugs (PWID) is to monitor the prevalence and incidence of HIV, hepatitis B (HBV) and hepatitis C (HCV) infection, and associated injecting risk behaviour in people who inject psychoactive drugs, such as heroin, crack cocaine and amphetamines. This annual cross-sectional survey is co-ordinated by Public Health England (PHE), with support from Public Health Wales and The Public Health Agency for Northern Ireland. New data from the UAM Survey have been published on the PHE website in a set of data tables which cover the period 2010 to 2019 [1]. Data from 1990 to 2009 can be found in previous years’ data tables [2]. In addition to combined data for England, Wales and Northern Ireland (the areas covered by this survey), the tables also include data for each country and the regions of England separately. 

This report presents an overview of the trends between 2010 and 2019 for the prevalence of HIV, HBV and HCV, injecting risk behaviours, and uptake of harm reduction services. It also includes an overview of the trends of non-fatal overdoses and use of naloxone – results for which were previously reported in a stand-alone report [3]. Further data from this survey related to HCV will be reported in the next Hepatitis C in the UK report. The previous year’s report can be found online [4]. PHE is undertaking further analyses of UAM data received during 2020 to assess the impact of the COVID-19 response on PWID. Provisional findings will be included in Shooting Up: Infections among people who inject drugs in the UK, which will be released in the coming months.