Hepatitis C seroprevalence amongst injecting drug users attending a methadone programme

Area of Science:

• Virology
• Public Health
• Epidemiology

Background:

• Hepatitis C virus (HCV) poses a significant health burden globally.
• Injecting drug users (IDUs) are a key population for HCV transmission and prevalence.
• Understanding risk factors is crucial for targeted prevention interventions.

Purpose of the Study:

• To determine the seroprevalence of Hepatitis C virus (HCV) in a cohort of injecting drug users.
• To investigate the association between potential risk factors and HCV infection within this population.

Main Methods:

• A study was conducted with 116 clients at a methadone treatment clinic.
• Blood samples were analyzed for HCV antibodies and RNA, with serum transaminases measured.
• Participants completed a confidential questionnaire on sexual behavior and drug use practices.

Main Results:

• HCV antibodies were detected in 84.2% and HCV RNA in 66.1% of participants.
• Seroprevalence increased with duration of injecting drug use and sharing of injecting equipment.
• While sharing of equipment has decreased, HCV transmission persists.

Conclusions:

• HCV is widespread among injecting drug users, indicating a substantial clinical and social issue.
• Ongoing HCV transmission necessitates vigilance for other parenterally transmitted infections like HIV.
• Individuals at high risk for HCV should be advised against blood donation due to seronegative infectivity risk.