Respondent-driven sampling (RDS), a chain referral sampling approach, is increasingly
used to recruit participants from hard-to-reach populations, such as injection drug users (IDUs). …

Research letter tion drug use reported during the 30 days before assessment decreased
significantly in the total sample between 2001 and 2005, from 84.5% to 63.7%(p< 0.001). Our …

Since migration has been linked to new drug trends and risky behaviors, and deported
individuals face unique economic and social stressors, we investigated behaviors of injection …

Objective Epidemiological studies present oral crack use as a potential independent risk
factor for hepatitis C virus (HCV) status, yet actual HCV transmission pathways via crack use …

In recent years, controversial interventions such as ‘heroin-assisted treatment’ (HAT) and ‘supervised
injection facilities’ (SIFs) have been established in attempts to minimise the high …

OBJECTIVE: To estimate the prevalence of the hepatitis C virus (HCV) and HIV infection and
associated risk behaviors among injection drug users (IDUs) in two northern Mexican cities. …

The economic, social, cultural, and political milieus that influence HIV risk behaviors along
the US–Mexico border are understudied. In an effort to appropriately inform interventions …

Injection drug use is of increasing concern along the US–Mexico border where Tijuana and
Ciudad (Cd.) Juarez are located. We conducted a qualitative study to explore the context of …

Introduction and Aims. Recent data suggest increasing prescription opioid and decreasing
heroin use among street drug users, yet little is known on possible differential use …

Objectives: To summarize key characteristics and consequences of illicit opioid use from the
literature and to present corresponding data from a multisite sample of illicit opioid users in …