"Globally, there are nearly 15.6 million people (aged 15–64) who inject drugs (PWID), with an estimated 2.6 million PWID in North America (Degenhardt et al., 2017). Canada and the United States (US) have both seen significant increases in the rate of injection drug use, as well as a rise in the rate of infections and fatal overdose related to injection drug use (Jacka et al., 2020; Levitt et al., 2020). The risk of fatal overdose significantly increases when people inject drugs alone, and may be prevented with timely intervention (i.e. administration of naloxone, an overdose prevention medication) (Colledge et al., 2019). There is also an increased risk of disease transmission (e.g. HIV, hepatitis) and serious infections associated with injecting drugs, which are often related to using unsterile equipment, injecting in unhygienic settings, or rushed injections (Colledge et al., 2019). The increase in injection drug use and the risks associated with using alone, in unhygienic or unsupervised settings necessitate the need for services that support safe injection practices among PWID."

Source

Sarah J. Dow-Fleisner, Arielle Lomness, Lucía Woolgar, Impact of safe consumption facilities on individual and community outcomes: A scoping review of the past decade of research, Emerging Trends in Drugs, Addictions, and Health, Volume 2, 2022, 100046, ISSN 2667-1182, doi.org/10.1016/j.etdah.2022.100046.