Secondary syringe exchange among injection drug users

Social networks, secondary syringe exchange, and opioid agonist therapy retention among people who inject drugs in Hartford, CT

BACKGROUND

Opioid agonist therapies (OAT) and  harm reduction such as syringe service programs (SSP) have been shown to be effective in preventing adverse outcomes such as overdose deaths, HIV and Hepatitis C infections among people who inject drugs (PWID). The importance of social network influence on disease transmission is well established, yet the interplay between harm reduction and network structures is, generally, not well understood. This study aims to analyze how social networks can mediate the harm reduction effects associated with secondary exchange through syringe service programs (SSP) and opioid agonist therapies (OAT) among injection network members.

METHODS

Sociometric data on networks on people who inject drugs from Hartford, CT, which were collected in 2012-2013, provided assessment of risk behaviors among 1574 injection network members, including participation in OAT and SSP. Subject's network characteristics were examined in relation to retention in OAT, as well as secondary syringe exchange using exponential random graph model (ERGM) and regression.

RESULTS

Based on the analysis, we found that probability of individuals being retained in OAT was positively associated with the OAT retention status of their peers within the network. Using simulations, we found that higher levels of positive correlation of OAT retention among network members can result in reduced risk of transmission of HIV to network partners on OAT. In addition, we found that secondary syringe exchange engagement was associated with higher probability of sharing of paraphernalia and unsterile needles at the network level.

CONCLUSIONS

Understanding how networks mediate risk behaviors is crucial for making progress toward ending the HIV epidemic.

Attitudes toward harm reduction and low-threshold healthcare during the COVID-19 pandemic: qualitative interviews with people who use drugs in rural southern Illinois

BACKGROUND

Chronic health conditions associated with long-term drug use may pose additional risks to people who use drugs (PWUD) when coupled with COVID-19 infection. Despite this, PWUD, especially those living in rural areas, may be less likely to seek out health services. Previous research has highlighted the increased disease burden of COVID-19 among PWUD. Our manuscript supplements this literature by exploring unique attitudes of PWUD living in rural areas toward the pandemic, COVID-19 vaccination, and the role of harm reduction (HR) organizations in raising health awareness among PWUD.

METHODS

Semi-structured interviews were conducted with 20 PWUD living in rural southern Illinois. Audio recordings were professionally transcribed. A preliminary codebook was created based on interview domains. Two trained coders conducted iterative coding of the transcripts, and new codes were added through line-by-line coding and thematic grouping.

RESULTS

Twenty participants (45% female, mean age of 38) completed interviews between June and November 2021. Participants reported negative impacts of the pandemic on mental health, financial wellbeing, and drug quality. However, the health impacts of COVID-19 were often described as less concerning than its impacts on these other aspects of life. Many expressed doubt in the severity of COVID-19 infection. Among the 16 unvaccinated participants who reported receiving most of their information from the internet or word of mouth, uncertainty about vaccine contents and distrust of healthcare and government institutions engendered wariness of the vaccination. Distrust of healthcare providers was related to past stigmatization and judgement, but did not extend to the local HR organization, which was unanimously endorsed as a positive institution. Among participants who did not access services directly from the HR organization, secondary distribution of HR supplies by other PWUD was a universally cited form of health maintenance. Participants expressed interest in low-threshold healthcare, including COVID-19 vaccination, should it be offered in the local HR organization's office and mobile units.

CONCLUSION

COVID-19 and related public health measures have affected this community in numerous ways. Integrating healthcare services into harm reduction infrastructures and mobilizing secondary distributors of supplies may promote greater engagement with vaccination programs and other healthcare services.

TRIAL NUMBER

NCT04427202.

NEXT: description, rationale, and evaluation of a novel internet-based mail-delivered syringe service program

Background

Despite proven health benefits, harm reduction services provided through in-person syringe services programs (SSPs) and pharmacies are largely unavailable to most people who inject drugs (PWID). Internet-based mail-delivered harm reduction services could overcome barriers to in-person SSPs. This manuscript describes Needle Exchange Technology (NEXT) Harm Reduction, the first formal internet-based mail delivery SSP in the US.

Methods

We examined the trajectory of NEXT's growth between February 2018 and August 2021. Descriptive statistics were used to characterize program participants. All analysis were run using STATA statistical software.

Results

Over the course of 42 months, 1,669 unique participants enrolled in NEXT. The program distributed 1,648,162 total syringes with a median of 79,449 syringes per month. Most participants ordered multiple times (61%); 31% had more 5 or more orders (upper range = 48 orders). The total number of syringes per month and total number of first-time syringe orders per month increased steadily over time, particularly after the onset of the COVID-19 pandemic.

Conclusions

The online platform and mail-delivery model appears successful in reaching PWID at high risk for harms from IDU. Changes to state laws and additional funding support are needed to make mail-delivery harm reduction more widely available throughout the US.

"We were building the plane as we were flying it, and we somehow made it to the other end": syringe service program staff experiences and well-being during the COVID-19 pandemic

BACKGROUND

Syringe service programs (SSPs) provide essential harm reduction and prevention services for people who inject drugs in the USA, where SSP coverage is expanding. During the COVID-19 pandemic, US SSPs underwent unprecedented shifts in operational procedures (e.g., closures of physical sites, staff redeployment into pandemic response efforts). Given the critical role of US SSP workers in the pandemic, we sought to explore the occupational experiences and well-being of SSP staff to inform future emergency response efforts.

METHODS

From July-October 2020, we conducted semi-structured interviews with staff members of four SSPs in diverse regions of Massachusetts. Trained interviewers administered qualitative interviews virtually. Interviews were coded in NVivo v12 and thematic analysis identified common occupational experiences and related impacts on staff well-being in the context of the COVID-19 pandemic.

RESULTS

Among 18 participants, 12 (67%) had client-facing roles such as harm reduction specialists and six (33%) worked in program management or leadership. We found that staff were frequently anxious about SARS-CoV-2 transmission, which contributed to staff turnover. SSPs rapidly adapted and expanded their services to meet increasing client needs during the pandemic (e.g., food distribution, COVID-19 testing), leading to staff overexertion. Simultaneously, public health measures such as physical distancing led to staff concerns about reduced social connections with clients and coworkers. Through these challenges, SSPs worked to protect staff well-being by implementing flexible and tangible COVID-19-related policies (e.g., paid sick leave), mental health resources, and frequent communication regarding pandemic-related operational changes.

CONCLUSION

SSPs in the USA adapted to the COVID-19 pandemic out of necessity, resulting in operational changes that threatened staff well-being. Despite the protective factors revealed in some narratives, our findings suggest that during prolonged, complex public health emergencies, SSPs may benefit from enhanced occupational supports to prevent burnout and promote wellness for this essential public health workforce.

Dealing with low access to harm reduction: a qualitative study of the strategies and risk environments of people who use drugs in a small Swedish city

Background

The development of harm reduction has been limited in many areas of Sweden. This study aims to understand the implications that this has for the life circumstances and risk management of people who use drugs in areas of low access.

Methods

Eleven qualitative, semi-structured interviews were undertaken with people who use drugs in a small urban centre with no needle and syringe exchange program (NSP) or Housing First policy.

Results

Participants reported many solutions to lack of NSP, including travel to an external NSP, creating bridging distribution networks, stealing, borrowing, reusing, ordering online, and smuggling injection equipment. They were at risk of having their equipment confiscated by police. Participants were mostly homeless, and to address exclusion from housing services, were forced to frequently find new temporary solutions, sheltering themselves in public places, with friends, in cars, among others. Participants felt the lack of services reflected stigmatized notions of drug use and heightened their exclusion from general society. For example, they avoided accessing other health care services for fear of discrimination. These issues caused high levels of stress and anxiety, in addition to serious risk for many somatic and psychological health conditions, including HIV and HCV transmission.

Conclusion

Lack of harm reduction services placed a great burden on study participants to develop strategies due to gaps in official programming. It also contributes to a vicious cycle of exclusion from services. The implementation of such evidence-based programs will reduce this burden, as well as provide the indirect, symbolic effect of inclusion.

Syringe Services Programs' Role in Ending the HIV Epidemic in the U.S.: Why We Cannot Do It Without Them

Diagnoses of HIV among people who inject drugs have increased in the U.S. during 2014-2018 for the first time in 2 decades, and multiple HIV outbreaks have been detected among people who inject drugs since 2015. These epidemiologic trends pose a significant concern for achieving goals of the federal initiative for Ending the HIV Epidemic in the U.S. Syringe services programs are cost effective, safe, and highly effective in reducing HIV transmission and are an essential component of a comprehensive, integrated approach to addressing these concerns. Yet, geographic coverage of these programs remains limited in the U.S., and many jurisdictions continue to have laws and policies that limit or disallow syringe services programs. An in-depth literature review was conducted on the role of syringe services programs in the Ending the HIV Epidemic initiative. Empirical and model-based evidence consistently shows that syringe services programs have the highest impact in HIV prevention when combined with access to medications for substance use disorder and antiretroviral therapy. Their effectiveness is further maximized when they provide services without restrictions and include proven and innovative strategies to expand access to harm-reduction and clinical services (e.g., peer outreach, telehealth). Increasing geographic and service coverage of syringe services programs requires strong and sustainable policy, funding, and community support and will need to address new challenges related to the COVID-19 pandemic. Syringe services programs have a key role in all 4 Ending the HIV Epidemic initiative strategies-Prevent, Diagnose, Treat, and Respond-and thus are instrumental to its success in preventing disease and saving lives.

Factors that influence enrollment in syringe services programs in rural areas: a qualitative study among program clients in Appalachian Kentucky

BACKGROUND

Enrolling sufficient number of people who inject drugs (PWID) into syringe services programs (SSP) is important to curtail outbreaks of drug-related harms. Still, little is known about barriers and facilitators to SSP enrollment in rural areas with no history of such programs. This study's purpose was to develop a grounded theory of the role of the risk environment and individual characteristics of PWID in shaping SSP enrollment in rural Kentucky.

METHODS

We conducted one-on-one semi-structured interviews with 41 clients of 5 SSPs that were established in rural counties in Appalachian Kentucky in 2017-2018. Interviews covered PWID needs, the process of becoming aware of SSPs, and barriers and facilitators to SSP enrollment. Applying constructivist grounded theory methods and guided by the Intersectional Risk Environment Framework (IREF), we applied open, axial and selective coding to develop the grounded theory.

RESULTS

Stigma, a feature of IREF's meso-level social domain, is the main factor hampering SSP enrollment. PWID hesitated to visit SSPs because of internalized stigma and because of anticipated stigma from police, friends, family and healthcare providers. Fear of stigma was often mitigated or amplified by a constellation of meso-level environmental factors related to healthcare (e.g., SSPs) and social (PWID networks) domains and by PWID's individual characteristics. SSPs mitigated stigma as a barrier to enrollment by providing low threshold services in a friendly atmosphere, and by offering their clients program IDs to protect them from paraphernalia charges. SSP clients spread positive information about the program within PWID networks and helped their hesitant peers to enroll by accompanying them to SSPs. Individual characteristics, including child custody, employment or high social status, made certain PWID more susceptible to drug-related stigma and hence more likely to delay SSP enrollment.

CONCLUSIONS

Features of the social and healthcare environments operating at the meso-level, as well as PWID's individual characteristics, appear to enhance or mitigate the effect of stigma as a barrier to SSP enrollment. SSPs opening in locations with high stigma against PWID need to ensure low threshold and friendly services, protect their clients from police and mobilize PWID networks to promote enrollment.

Consider the Source: Associations between Syringe Sources and Risky Injection Behaviors in California's Central Valley

BACKGROUND

Sterile syringe access is critical to prevent serious viral and bacterial infections among people who inject drugs (PWID) but many areas across the United States lack sufficient access. Although California law allows nonprescription pharmacy syringe sales and syringe services programs (SSPs), access gaps remain in the largely rural Central Valley.

OBJECTIVE

The purpose of this study was to examine syringe access and related injection behaviors among PWID in Fresno, California.

METHODS

We used respondent driven sampling to recruit 494 individuals for a survey about syringe access and injection behaviors between April and September 2016. Participants were ≥18 years old and injected at least twice in the past 30 days. Descriptive statistics examined syringe access and logistic regression determined if discrete syringe source categories were significantly associated with syringe sharing and/or reuse.

RESULTS

A majority (67%) obtained syringes from an authorized source; SSPs were most common (59%), while few reported pharmacy purchase (14%). Unauthorized sources were even more common (79%), primarily friends (64%) or someone on the street (37%). Compared to PWID who used only authorized sources, those using only unauthorized sources had a higher odds of syringe sharing (AOR = 3.40, 95% CI: 1.66, 6.95) and syringe reuse (AOR = 6.22; 95% CI: 2.24, 17.29), as did those who reported mixed sources (AOR = 3.78; 95% CI: 1.90, 7.54 and AOR = 4.64; 95% CI: 2.08, 10.35).

CONCLUSIONS

Our findings demonstrate a need to expand syringe access in nonurban California to prevent the syringe sharing and reuse that contributes to serious viral and bacterial infections among PWID.

Rural risk environments for hepatitis c among young adults in appalachian kentucky

BACKGROUND

Rural Kentucky is an epicenter of hepatitis C(HCV), especially among young adults who inject drugs. While the Risk Environment Framework (REF) has been used widely to study and address socio-ecological determinants of infectious disease among people who inject drugs (PWID), it has been almost exclusively applied to urban environments. Applying REF to rural environments can enhance our understanding of the drivers of HCV epidemics in these hard-hit areas, and inform the creation and implementation of harm reduction interventions in this local context.

METHODS

Participants were recruited between March and August 2017 via community-based outreach methods (e.g., cookouts, flyers) and peer referral. Individuals who met eligibility criteria (aged 18-35, recently used prescription opioids and/or heroin to get high, lived in one of the 5 target counties) participated indepth, semi-structured interviews. The interview guide was informed by the REF, and covered HCV-related risk behaviors and environmental features that shaped vulnerability to engaging in these behaviors. Interviews were transcribed and analyzed using constructivist grounded-theory methods.

RESULTS

Participants (N=19) described multiple intersecting risk environment features that shaped vulnerability to HCV transmission. Economic decline generated intergenerational poverty, dwindling employment prospects, and diminished social enrichment opportunities that collectively contributed to substance misuse and risky injection practices. Geographic isolation, lack of collective knowledge about HCV transmission risks, scarce harm reduction services, familial poverty, and fear of law enforcement interacted to increase the odds of people injecting in "trap houses" (akin to shooting galleries) or secluded areas, spaces in which they rushed to inject and shared injection equipment. Pervasive stigma was a structural barrier to adopting, expanding, and using harm reduction services.

CONCLUSION

This exploratory study identified features of rural risk environments that may contribute to significant HCV burdens in Appalachian Kentucky. Findings signal the importance of expanding proven harm reduction strategies and anti-stigma interventions tailored to rural contexts.

Secondary distribution of injecting equipment obtained from needle and syringe programmes by people injecting image and performance enhancing drugs: England and Wales, 2012-15

BACKGROUND

People who inject image and performance enhancing drugs (IPEDs) are often the largest group using needle and syringe programmes (NSPs) in the UK. NSP providers report these clients repeatedly collecting large amounts of equipment for others. The extent of secondary distribution of injecting equipment is unknown.

METHODS

Data from national surveillance of people injecting IPEDs were used. Participants completed a questionnaire and provided a dried-blood spot sample. Data from two biennial surveys was combined; repeat participants were excluded. Self-reported data was used to explore the extent of secondary distribution.

RESULTS

Of the participants, 87% (467) reported NSP use; median age was 31 years; 98% were male. A third (34%, 157) reported collecting equipment for others. Of those collecting for others, 154 reported how many people they had collected for: 55% had collected for one person, 27% for 2-9 people, 5% for 10-19 and 13% for 20 or more (no difference by psychoactive drug use). Those vaccinated for hepatitis B were more likely (22% [15/68] vs 6% [5/86], p = 0.003), and those reporting redness/swelling at an injection site were less likely to collect equipment for at least 20 others (8% [8/106] vs 25% [12/48], p = 0.003). Overall, 154 people collected equipment for 639-1569 people injecting IPEDs.

CONCLUSIONS

Secondary distribution of injecting equipment is common among those injecting IPEDs and using NSPs. Whilst not allowing for rotational collection within groups, our analysis suggests that many of those injecting IPEDs are not in direct contact with NSPs. Innovation approaches for harm reduction interventions are needed.

Needle acquisition patterns, network risk and social capital among rural PWID in Puerto Rico

BACKGROUND

People who inject drugs (PWID) take on significant risks of contracting blood-borne infection, including injecting with a large number of partners and acquiring needles from unsafe sources. When combined, risk of infection can be magnified.

METHODS

Using a sample of PWID in rural Puerto Rico, we model the relationship between a subject's number of injection partners and the likelihood of having used an unsafe source of injection syringes. Data collection with 315 current injectors identified six sources of needles.

RESULTS

Of the six possible sources, only acquisition from a seller (paid or free), or using syringes found on the street, was significantly related to number of partners.

CONCLUSIONS

These results suggest that sources of syringes do serve to multiply risk of infection caused by multi-partner injection concurrency. They also suggest that prior research on distinct forms of social capital among PWID may need to be rethought.

Decreased Odds of Injection Risk Behavior Associated With Direct Versus Indirect Use of Syringe Exchange: Evidence From Two California Cities

BACKGROUND

While there is substantial evidence that syringe exchange programs (SEPs) are effective in preventing HIV among people who inject drugs (PWID), nearly all the evidence comes from PWID who obtain syringes from an SEP directly. Much less is known about the benefits of secondary exchange to PWID who get syringes indirectly from friends or acquaintances who visit an SEP for them.

OBJECTIVES

We evaluated the effectiveness of direct versus indirect syringe exchange in reducing HIV-related high-risk injecting behavior among PWID in two separate studies conducted in Sacramento and San Jose, California, cities with quite different syringe exchange models.

METHODS

In both studies associations between direct and indirect syringe exchange and self-reported risk behavior were examined with multivariable logistic regression models. Study 1 assessed effects of a "satellite" home-delivery syringe exchange in Sacramento, while Study 2 evaluated a conventional fixed-site exchange in San Jose.

RESULTS

Multivariable analyses revealed 95% and 69% reductions, respectively, in high-risk injection associated with direct use of the SEPs in Sacramento and San Jose, and a 46% reduction associated with indirect use of the SEP in Sacramento. Conclusions/Importance: The very large effect of direct SEP use in Sacramento was likely due in part to home delivery of sterile syringes. While more modest effects were associated with indirect use, such use nevertheless is valuable in reducing the risk of HIV transmission of PWID who are unable or unwilling to visit a syringe exchange.

Merchants, samaritans, and public health workers: Secondary syringe exchanger discursive practices

BACKGROUND

Secondary syringe exchangers (SSEs) are a vital component of harm reduction efforts among persons who inject drugs (PWIDs). However, little research has explored how secondary exchange occurs, nor why SSEs do their work. This study looks at secondary exchange as an act of resilience within the PWID risk environment. It asks how secondary syringe exchangers utilize syringes to improve their mental and material well-being.

METHODS

This article draws on findings from semi-structured in-depth interviews of 30 SSEs. It is also informed by 4 years of participant observation as a volunteer and site supervisor at the San Francisco Aids Foundation syringe exchange sites, and 1 year of participant observation with SSEs and their clients.

RESULTS

This study finds that SSEs use syringes as a resource to support three discursive practices - those of merchants, public health workers, and samaritans. These discursive practices correlate to their work and educational backgrounds, and to their accounts of charging for syringes, disseminating public health information, and helping their clients in various ways.

CONCLUSION

SSEs hold heterogeneous motivations and operate in multiple contexts. Many SSEs see themselves as, and behave as, informal health care workers or helpers in their community. They could be utilized, with minimal training and encouragement, to disseminate additional harm reduction information and materials.

Syringe Acquisition, Peer Exchange and HIV Risk

To explore syringe access patterns and implications for HIV prevention programming, data from qualitative interviews (n=120) with injection drug users (IDU) and an evaluation of a satellite syringe-exchange program (SEP) were used. Three patterns were identified: IDUs who stockpile supplies to meet their own needs and to provide secondary distribution to friends and drug-using associates; IDUs who keep a several-days supply of syringes available, primarily for their own use; and IDUs who usually obtain equipment at the time of obtaining drugs, in some cases unsterile equipment from other injectors. The first two types of injectors are typically in stable housing, while the last group are generally in unstable housing. This analysis highlights the very direct link between adequate housing and safer injection practices for HIV prevention, and points to the need to advocate more broadly on behalf of IDUs for appropriate housing, harm-reduction and social services.

"We get by with a little help from our friends": Small-scale informal and large-scale formal peer distribution networks of sterile injecting equipment in Australia

BACKGROUND

In Australia, sterile needles and syringes are distributed to people who inject drugs (PWID) through formal services for the purposes of preventing blood borne viruses (BBV). Peer distribution involves people acquiring needles from formal services and redistributing them to others. This paper investigates the dynamics of the distribution of sterile injecting equipment among networks of people who inject drugs in four sites in New South Wales (NSW), Australia.

METHODS

Qualitative data exploring the practice of peer distribution were collected through in-depth, semi-structured interviews and participatory social network mapping. These interviews explored injecting equipment demand, access to services, relationship pathways through which peer distribution occurred, an estimate of the size of the different peer distribution roles and participants' understanding of the illegality of peer distribution in NSW.

RESULTS

Data were collected from 32 participants, and 31 (98%) reported participating in peer distribution in the months prior to interview. Of those 31 participants, five reported large-scale formal distribution, with an estimated volume of 34,970 needles and syringes annually. Twenty-two participated in reciprocal exchange, where equipment was distributed and received on an informal basis that appeared dependent on context and circumstance and four participants reported recipient peer distribution as their only access to sterile injecting equipment. Most (n=27) were unaware that it was illegal to distribute injecting equipment to their peers.

CONCLUSION

Peer distribution was almost ubiquitous amongst the PWID participating in the study, and although five participants reported taking part in the highly organised, large-scale distribution of injecting equipment for altruistic reasons, peer distribution was more commonly reported to take place in small networks of friends and/or partners for reasons of convenience. The law regarding the illegality of peer distribution needs to change so that NSPs can capitalise on peer distribution to increase the options available to PWID and to acknowledge PWID as essential harm reduction agents in the prevention of BBVs.

Expanding HIV Testing in African American Communities Through Community-Based Distribution of Home-Test Vouchers

We investigated the implementation feasibility and effectiveness of community-based HIV home-test voucher distribution in three Indianapolis African American communities. Community-based organizations augmented traditional outreach methods to distribute vouchers for home HIV tests redeemable at three pharmacies during three distribution waves from February to April 30, 2015. Voucher redemption served as a proxy indicator of intent to test for HIV. 315 vouchers were distributed and 47 vouchers were redeemed for a 14.9% redemption rate. Distribution was 46% of plan. Vouchers were redeemed at all three pharmacies, and 21% of visits involved redemption of more than one voucher. The original team of seven distributors in three organizations reduced to a remaining five distributors in two organizations by wave 2. This study suggests that outreach organizations could implement HIV home test voucher distribution, and that people would redeem the vouchers at a pharmacy for an HIV test. Future studies should explore how voucher distribution can expand the current HIV testing system.

Peering into the literature: A systematic review of the roles of people who inject drugs in harm reduction initiatives

BACKGROUND

People who inject drugs have been central to the development of harm reduction initiatives. Referred to as peer workers, peer helpers, or natural helpers, people with lived experience of drug use leverage their personal knowledge and skills to deliver harm reduction services. Addressing a gap in the literature, this systematic review focuses on the roles of people who inject drugs in harm reduction initiatives, how programs are organized, and obstacles and facilitators to engaging people with lived experience in harm reduction programs, in order to inform practice and future research.

METHODS

This systematic review included searches for both peer reviewed and gray literature. All titles and abstracts were screened by two reviewers. A structured data extraction tool was developed and utilized to systematically code information concerning peer roles and participation, program characteristics, obstacles, and facilitators.

RESULTS

On the basis of specific inclusion criteria 164 documents were selected, with 127 peer-reviewed and 37 gray literature references. Data extraction identified key harm reduction program characteristics and forms of participation including 36 peer roles grouped into five categories, as well as obstacles and facilitators at systemic, organizational, and individual levels.

CONCLUSIONS

Research on harm reduction programs that involve people with lived experience can help us better understand these approaches and demonstrate their value. Current evidence provides good descriptive content but the field lacks agreed-upon approaches to documenting the ways peer workers contribute to harm reduction initiatives. Implications and ten strategies to better support peer involvement in harm reduction programs are identified.

Peer helpers' struggles to care for "others" who inject drugs

BACKGROUND

Users who access needle exchanges are sometimes recruited to act as secondary distributors in an effort to reach a broader range of individuals who inject drugs. Although evaluations have demonstrated the efficiency of such approaches, more recent research has begun to uncover particular challenges associated with assuming these intermediary roles.

METHODS

This article provides insights drawn from four focus-group sessions with 17 volunteers, termed natural helpers, who have between 1 and 14 years experience acting as secondary distributors for an Atlantic Canadian needle exchange.

RESULTS

From the perspective of the natural helpers involved in this research, medical professionals consider those who inject drugs to be undeserving of the care accorded to more "responsible" patients. As a consequence of such disenfranchisement, natural helpers find themselves drawn into many forms of informal "doctoring" that extend far beyond their official roles as secondary distribution agents. In addition to providing syringes, training new users in safe injection procedures and promoting the use of sterile equipment, natural helpers try to dissuade people from starting to inject, act as first responders for overdoses, test drug potency, administer first aid, share prescription drugs such as antibiotics, offer temporary housing, counsel on emotional/psychological issues, and support those who are striving to reduce their drug consumption.

CONCLUSION

The practices that have arisen in response to the distancing from professional health care experienced by those who inject drugs pose serious dilemmas and risks for not only users and natural helpers but also the general public.

Injecting on the Island: a qualitative exploration of the service needs of persons who inject drugs in Prince Edward Island, Canada

BACKGROUND

Few studies have investigated the service needs of persons who inject drugs (PWID) who live in less populated regions of Canada. With access to fewer treatment and harm reduction services than those in more urban environments, the needs of PWID in smaller centres may be distinct. As such, the present study examined the needs of PWID in Prince Edward Island (PEI), the smallest of Canada's provinces.

METHODS

Eight PWID were interviewed about the services they have accessed, barriers they faced when attempting to access these services, and what services they need that they are not currently receiving.

RESULTS

Participants encountered considerable barriers when accessing harm reduction and treatment services due to the limited hours of services, lengthy wait times for treatment, and shortage of health care practitioners. They also reported experiencing considerable negativity from health care practitioners. Participants cited incidences of stigmatisation, and they perceived that health care practitioners received insufficient training related to drug use. Recommendations for the improvement of services are outlined.

CONCLUSIONS

The findings indicate that initiatives should be developed to improve PWID's access to harm reduction and treatment services in PEI. Additionally, health care practitioners should be offered sensitisation training and improved education on providing services to PWID. The findings highlight the importance of considering innovative alternatives for service provision in regions with limited resources.

Task shifting redefined: removing social and structural barriers to improve delivery of HIV services for people who inject drugs

HIV infection among people who inject drugs (IDU) remains a major global public health challenge. However, among IDU, access to essential HIV-related services remains unacceptably low, especially in settings where stigma, discrimination, and criminalization exist. These ongoing problems account for a significant amount of preventable morbidity and mortality within this population, and indicate the need for novel approaches to HIV program delivery for IDU. Task shifting is a concept that has been applied successfully in African settings as a way to address health worker shortages. However, to date, this concept has not been applied as a means of addressing the social and structural barriers to HIV prevention and treatment experienced by IDU. Given the growing evidence demonstrating the effectiveness of IDU-run programs in increasing access to healthcare, the time has come to extend the notion of task shifting and apply it in settings where stigma, discrimination, and criminalization continue to pose significant barriers to HIV program access for IDU. By involving IDU more directly in the delivery of HIV programs, task shifting may serve to foster a new era in the response to HIV/AIDS among IDU.

OxyContin® as currency: OxyContin® use and increased social capital among rural Appalachian drug users

Studies have shown that position within networks of social relations can have direct implications on the health behaviors of individuals. The present study examines connections between drug use and individual social capital within social networks of drug users (n = 503) from rural Appalachian Kentucky, U.S.A. Respondent driven sampling was used to recruit individuals age 18 and older who had used one of the following drugs to get high: cocaine, crack, heroin, methamphetamine, or prescription opioids. Substance use was measured via self-report and social network analysis of participants' drug use network was used to compute effective size, a measure of social capital. Drug network ties were based on sociometric data on recent (past 6 month) drug co-usage. Multivariate multi-level ordinal regression was used to model the independent effect of socio-demographic and drug use characteristics on social capital. Adjusting for gender, income, and education, daily OxyContin(®) use was found to be significantly associated with greater social capital, and daily marijuana use was associated with less social capital. These results suggest that in regions with marked economic disparities such as rural Appalachia, OxyContin(®) may serve as a form of currency that is associated with increased social capital among drug users. Interventions focusing on increasing alternate pathways to acquiring social capital may be one way in which to alleviate the burden of drug use in this high-risk population.

Characteristics of an overdose prevention, response, and naloxone distribution program in Pittsburgh and Allegheny County, Pennsylvania

Prevention Point Pittsburgh (PPP) is a public health advocacy organization that operates Allegheny County's only needle exchange program. In 2002, PPP implemented an Overdose Prevention Program (OPP) in response to an increase in heroin-related and opioid-related overdose fatalities in the region. In 2005, the OPP augmented overdose prevention and response trainings to include naloxone training and prescription. The objective of our study is to describe the experiences of 426 individuals who participated in the OPP between July 1, 2005, and December 31, 2008. Of these, 89 individuals reported administering naloxone in response to an overdose in a total of 249 separate overdose episodes. Of these 249 overdose episodes in which naloxone was administered, participants reported 96% were reversed. The data support findings from a growing body of research on similar programs in other cities. Community-based OPPs that equip drug users with skills to identify and respond to an overdose and prescribe naloxone can help users and their peers prevent and reverse potentially fatal overdoses without significant adverse consequences.

A GIS-based methodology for improving needle exchange service delivery

BACKGROUND

A variety of legal, social and logistical factors can prevent individuals from accessing formal needle exchange programmes. One common solution to this problem is satellite exchange, which involves collaborating with people who already use an exchange to deliver needles and other supplies to those unable to access the exchange. While this approach can be very successful, one potential problem is that those most willing to deliver needles to their peers are often members of social networks that are already well connected with the needle exchange, leading to duplication of effort. In this paper we describe a simple and novel method for identifying groups of people who are demonstrably in need of improved access to needles, and for re-targeting efforts to meet the needs of those people. The method described was piloted at the Homeless Youth Alliance, San Francisco, USA, and further refined at Clean Needles Now, Los Angeles, USA.

METHODS

People accessing needle exchange sites were asked to participate in a survey with two questions: "where were you and what time was it last time someone borrowed a needle from you?" and "where were you and what time was it last time you had to borrow a needle from someone else?" Responses were geocoded, and maps produced showing 'hotspots' where people were frequently finding themselves without needles.

RESULTS

Satellite needle exchange was refined from an ad-hoc activity into one which focused on delivering needles to those with empirically demonstrable need. Maps produced in the process also proved valuable in discussions with local officials and other agencies about funding, as well as needle provision policy and practices.

CONCLUSION

We describe a method for rapidly assessing, describing, and responding to unmet and under-met need among injecting drug users. The method is particularly well-suited to organizations with extremely limited resources.

Liquid Drugs and High Dead Space Syringes May Keep HIV and HCV Prevalence High – A Comparison of Hungary and Lithuania

Despitevery similar political, drug policy and HIV prevention backgrounds, HIV and HCV prevalence is considerably different in Hungary (low HIV and moderate HCV prevalence) and Lithuania (high HCV and moderate HIV prevalence). Wecompared the drug use profile of Hungarian (n = 215) and Lithuanian (n = 300) injecting drug users (IDUs). Overall, compared with IDUs in Hungary, IDUs in Lithuania often injected opiates purchased in liquid form ('shirka'), used and shared 2-piece syringes (vs. 1-piece syringes) disproportionately more often, were less likely to acquire their syringes from legal sources and had significantly more experience with injected and less experience with non-injected drugs. It may not be liquid drugs per se that contribute to a higher prevalence of HCV and/or HIV, but it is probably factors associated with the injecting of liquid drugs, such as the wide-spread use and sharing of potentially contaminated 2-piece syringes acquired often from non-legal sources, and syringe-mediated drug sharing with 2-piece syringes. Scaling up substitution therapy, especially heroin replacement, combined with reducing the supply of liquid drugs may decrease the prevalence of high-risk injecting behaviours related to the injecting of liquid drugs and drug injecting-related infections among IDUs in Lithuania.

[Networks: epidemiology of transmissible diseases from a systemic perspective]

The direct or indirect physical contact between human beings as a basic condition for the transmission of infectious diseases stimulated epidemiologists to put forth great efforts to understanding and describing the process of human contacts. It is through these contacts that disease spreads over populations and emerges, at the systemic level, in the form of epidemics. During the 20th century, many researchers dedicated themselves to revealing the population patterns that favor or not the emergence of epidemics and their temporal and spatial dynamics. The first insights came from population models adapted from the physical sciences, in which non-structured populations are considered. Later on it became clear that a more detailed description of social structures was required to correctly describe epidemic dynamics, and concepts such as social group, social network and social cohesion became important terms in the quantitative study of epidemics. The approximation between epidemiology and the social sciences turns obvious as their concepts are interacting more and more. To give a brief overview of this trajectory is the purpose of this article.

Neighborhood History as a Factor Shaping Syringe Distribution Networks Among Drug Users at a U.S. Syringe Exchange

Throughout the US, high-visibility drug markets are concentrated in neighborhoods with few economic opportunities, while drug buyers/users are widely dispersed. A study of Pittsburgh Syringe Exchange participants provides data on travel between and network linkages across neighborhoods with different levels of drug activity. There are distinct racial patterns to syringe distribution activity within networks and across neighborhoods. Pittsburgh's history suggests these patterns emerge from historical patterns of social and economic development. Study data demonstrate the ability of IDUs to form long term social ties across racial and geographic boundaries and use them to reduce the risk of HIV transmission.

Social network-related risk factors for bloodborne virus infections among injection drug users receiving syringes through secondary exchange

Secondary syringe exchange (SSE) refers to the exchange of sterile syringes between injection drug users (IDUs). To date there has been limited examination of SSE in relation to the social networks of IDUs. This study aimed to identify characteristics of drug injecting networks associated with the receipt of syringes through SSE. Active IDUs were recruited from syringe exchange and methadone treatment programs in Montreal, Canada, between April 2004 and January 2005. Information on each participant and on their drug-injecting networks was elicited using a structured, interviewer-administered questionnaire. Subjects' network characteristics were examined in relation to SSE using regression models with generalized estimating equations. Of 218 participants, 126 were SSE recipients with 186 IDUs in their injecting networks. The 92 non-recipients reported 188 network IDUs. Networks of SSE recipients and non-recipients were similar with regard to network size and demographics of network members. In multivariate analyses adjusted for age and gender, SSE recipients were more likely than non-recipients to self-report being HIV-positive (OR=3.56 [1.54-8.23]); require or provide help with injecting (OR=3.74 [2.01-6.95]); have a social network member who is a sexual partner (OR=1.90 [1.11-3.24]), who currently attends a syringe exchange or methadone program (OR=2.33 [1.16-4.70]), injects daily (OR=1.77 [1.11-2.84]), and shares syringes with the subject (OR=2.24 [1.13-4.46]). SSE is associated with several injection-related risk factors that could be used to help focus public health interventions for risk reduction. Since SSE offers an opportunity for the dissemination of important prevention messages, SSE-based networks should be used to improve public health interventions. This approach can optimize the benefits of SSE while minimizing the potential risks associated with the practice of secondary exchange.

Some data-driven reflections on priorities in AIDS network research

Risk networks can transmit HIV or other infections; social networks can transmit social influence and thus help shape norms and behaviors. This primarily-theoretical paper starts with a review of network concepts, and then presents data from a New York network study to study patterns of sexual and injection linkages among IDUs and other drug users and nonusers, men who have sex with men, women who have sex with women, other men and other women in a high-risk community and the distribution of HIV, sex at group sex events, and health intravention behaviors in this network. It then discusses how risk network microstructures might influence HIV epidemics and urban vulnerability to epidemics; what social and other forces (such as "Big Events" like wars or ecological disasters) might shape networks and their associated norms, intraventions, practices and behaviors; and how network theory and research have and may continue to contribute to developing interventions against HIV epidemics.

Higher syringe coverage is associated with lower odds of HIV risk and does not increase unsafe syringe disposal among syringe exchange program clients

OBJECTIVE

To determine if adequate syringe coverage --"one shot for one syringe"--among syringe exchange program (SEP) clients is associated with injection-related HIV risk behaviors and syringe disposal.

DESIGN

HIV risk assessments with 1577 injection drug users (IDUs) recruited from 24 SEPs in California between 2001 and 2003. Individual syringe coverage was calculated as a proportion of syringes retained from SEP visits to total number of injections in the last 30 days.

RESULTS

Participants were divided into four groups based on syringe coverage: <50%, 50-99%, 100-149%, and 150% or more. In multivariate logistic regression, SEP clients with less than 50% syringe coverage had significantly higher odds of reporting receptive syringe sharing in the last 30 days (adjusted odds ratio [AOR]=2.3; 95% confidence interval [CI]=1.4, 3.6) and those with 150% or more coverage had lower odds of reporting receptive syringe sharing (AOR=0.5; 95%CI=0.3, 0.8) as compared to SEP clients with adequate syringe coverage of 100-149%. Similar associations were observed for other main outcomes of distributive syringe sharing and syringe re-use. No differences in safe syringe disposal were observed by syringe coverage.

CONCLUSIONS

Individual syringe coverage is strongly associated with safer injection behaviors without impacting syringe disposal among SEP clients. Syringe coverage is a useful measure for determining if IDUs are obtaining sufficient syringes to lower HIV risk.

Social context of needle selling in Baltimore, Maryland

Although much of the debate surrounding the distribution of sterile syringes to injection drug users (IDUs) has focused on needle exchange programs (NEPs), IDUs acquire their syringes from three major sources: NEPs, pharmacies, and secondary exchangers or needle sellers. The purpose of the present study is to examine types and frequencies of social interactions among drug injectors who sell needles, most of which come from NEPs, compared with individuals who do not sell needles. Specifically, we compared engagement in drug-related behaviors, roles in the drug economy, and social network membership. Data were collected as part of the SHIELD study, an HIV prevention intervention targeted at drug users and their social networks (n=910) from February 2001 through September 2003 in Baltimore, Maryland (USA). In this sample, 56 participants reported selling needles. Needle sellers had higher levels of engagement in drug-related social interactions, including using drugs with others, giving or receiving drugs from others, and buying drugs with other users. Participants who sold needles had a significantly higher number of roles in the drug economy. Also, they had more social network members who were injectors, with whom they talked about risky drug behaviors, gave needles to, and shared cookers and bleach with. Compared with nonselling injectors, needle sellers engage in HIV risk-related behaviors, such as injecting daily and sharing injection equipment, more frequently. The study's findings may be useful to determine whether secondary exchangers should be targeted for HIV prevention activities both to reduce their own risk and to diffuse risk reduction information throughout the drug using community.

Factors associated with buying and selling syringes among injection drug users in a setting of one of North America's largest syringe exchange programs

We performed analyses of syringe buying and syringe selling among Vancouver injection drug users, recruited from May 1996 and followed up between November 2002 and August 2003, in the context of one of North America's largest syringe exchange programs (SEPs). An interviewer-administered questionnaire, approximately 45 minutes in duration, was used to collect information regarding risk factors for HIV infection and sources of sterile syringes. Seventy participants (15%) reported syringe selling and 122 (26%) reported syringe buying. Syringe sellers were more likely to be female, reside in unstable housing, need help injecting, and have visited the SEP at least once weekly. Syringe buyers were more likely to need help injecting, have difficulty finding new syringes, have binged on drugs, and have visited the SEP at least once weekly. Syringe buying most frequently occurred when the SEP was closed.

Secondary syringe exchange as a model for HIV prevention programs in the Russian Federation

Effective prevention of syringe-borne transmission of HIV and the hepatitis viruses can be undermined if contact between injection drug users and the staff of prevention programs is impeded by police harassment, limited program resources, and the absence of an open "drug scene." All these are commonplace in the Russian Federation. In response, "Project Renewal," the harm reduction program of the AIDS Prevention and Control Center of the Tatarstan Ministry of Health in Kazan, has created a hybrid syringe exchange program that as its primary focus recruited and trained volunteers to provide secondary syringe exchange. To compensate for operational barriers, the program staff identified private venues and trained responsible individuals to work through their own and related networks of injectors to provide clean syringes, other harm reduction supplies, and educational materials, while facilitating the collection and removal of used and potentially contaminated syringes. Program staff developed a detailed set of tracking instruments to monitor, on a daily and weekly basis, the locations and types of contacts and the dissemination of trainings and materials to ensure that the secondary distribution network reaches its target audience. Data show that these secondary exchange sites have proven more productive than the primary mobile and fixed-site syringe exchanges in Kazan. Beginning in 2001, Project Renewal has trained other harm reduction programs in the Russian Federation to use this model of reaching injectors, identifying and training volunteers, and monitoring results of secondary syringe exchange.

Threat or opportunity? Secondary exchange in a setting with widespread availability of needles

Where authorized access to needles and syringes from exchanges and pharmacies is limited, secondary exchange (SE) can provide an important source of sterile injecting equipment. Interventions can be developed to use SE to facilitate needle and syringe exchange programs to reach a wider population of drug injectors. Yet in a context such as Western Australia, where needles and syringes are available to drug injectors from many authorized sources, the added benefit of SE is unknown. This review of data and literature conducted in October 2003 shows potential benefits but also concerns about undermining vulnerable public and political support for authorized needle provision schemes that has been nurtured and supported over a number of years.

Update and overview of practical epidemiologic aspects of HIV/AIDS among injection drug users in the United States

In a changing public health landscape in which local, state, and federal agencies must confront threats of bioterrorism, emerging infections, and numerous chronic diseases, transmission of HIV among injection drug users (IDUs) continues to be an important public health issue and one of the driving forces behind the HIV epidemic. Using a computerized MEDLINE search of published articles from January 1981 through October 2005, we conducted a literature review of practical epidemiologic aspects of HIV/AIDS among IDUs in the United States. Although recent trends indicate a decline in the proportion of newly diagnosed HIV infections associated with injection drug use, drug-use behaviors overall still account for 32% of new HIV diagnoses. Factors in addition to syringe sharing contribute to HIV transmission among IDUs: risky sexual behaviors, sharing of drug preparation equipment and drug solutions, and contextual and social factors. Promising approaches for HIV prevention include rapid HIV testing, office-based substance abuse treatment, behavioral interventions, improved communication about syringe exchange programs, and case management. HIV among IDUs continues to be an important public health problem in the 21st century. It is imperative that public health agencies continue to monitor and combat the HIV epidemic among IDUs to ensure that hard-won gains will not be eroded.

Assessing needle exchange operations in a poor Brazilian community

This article assesses the operations of Porto Alegre, State of Rio Grande do Sul, (southern Brazil) needle exchange program (NEP), a setting where HIV infection rates have been on the rise among injection drug users (IDUs) in recent years, contrasting with substantial declines observed in this population, in major Brazilian cities (located in the southeast and southernmost part of Brazilian northeast). We explored local syringe dynamics, with the exclusive delivery in the local NEP of tagged syringes, and the subsequent monitoring of returned tagged/untagged used syringes from January to September 2002. We further assessed local NEP operations using focus groups and field observation, trying to expose the underlying reasons for the substantial delay in the return of tagged syringes and the continuous and relevant return of untagged syringes throughout the study period. We found that local IDUs reuse, divert, and create caches of syringes at their discretion. All efforts should be made to increase the availability of clean syringes and to fully integrate syringe exchange with comprehensive health education and health screening to effectively curb HIV spread.

Secondary syringe exchange among users of 23 California syringe exchange programs

This article describes the secondary syringe exchange (SSE) practices of injection drug users (IDUs) attending 23 syringe exchange programs (SEPs) in the state of California during 2002 (n=539). The sample was primarily heroin injecting, about two thirds male, half White and half other racial/ethnic groups. Participants were interviewed with a structured questionnaire that included items on sociodemographic factors, drug use practices, sexual practices, use of SEP and other social services, and satisfaction with SEP services. Interviews lasted about 30 minutes. SSE was highly prevalent: 75% of IDUs reported participating in SSE in the 6 months before interview. Program characteristics, such as legal status, SSE policy, and exchange policy, did not affect the prevalence of SSE among SEP clients. Infectious disease risk behaviors were significantly more common among SSE participants than nonparticipants. SSE participants were more likely to share syringes (p<.001) and cookers (p<.001) in the previous 6 months. SSE was significantly associated with being stuck with another person's syringe (needle-stick), a little-discussed "occupational hazard" of this practice. In multivariate analysis, the adjusted odds ratio of needle-stick among SSE participants was 2.8 (95% confidence interval, 1.3, 6.0). The high prevalence of SSE and the infectious disease risk associated with it warrant additional research to determine the causality of these associations. In the interim, SEPs should consider reinforcing HIV prevention education messages and training IDUs who engage in SSE in safe handling of biohazardous materials.

Impact of Gender and Sex Work on Sexual and Injecting Risk Behaviors and Their Association With HIV Positivity Among Injecting Drug Users in an HIV Epidemic in Togliatti City, Russian Federation

OBJECTIVES

Togliatti City is witness to a large epidemic of human immunodeficiency virus (HIV) associated with injecting drug use (IDU).

GOAL

This study sought to examine whether risk behaviors and risk factors associated with HIV differed across a sample IDUs by gender and sex work.

STUDY

A sample of IDU (n = 423) comprising female sex workers (SWs) (n = 66), non-sex workers (nonSWs) (n = 89) and men (n = 268) were recruited by field workers in community settings. Behavioral and HIV prevalence data were collected.

RESULTS

HIV prevalence did not differ across the groups ( approximately 56%), but gender adversely affected some risk factors. A comparison of risk behaviors indicated that SWs were more likely to engage in risky injecting behaviors than either men or nonSWs. They were also more likely to report a history of sexually transmitted infections.

CONCLUSIONS

IDUs involved in sex work and IDU nonSWs require specific and targeted interventions to facilitate safer injecting and sexual behaviors.

Drug use and HIV risk practices of secondary and primary needle exchange users

This study examines HIV risk practices associated with secondary needle exchange, obtaining needles from a needle exchange program (NEP) through others who attend in person. We analyzed data from NEP logs, a survey and HIV testing from 901 drug injectors who (a) always visited NEPs themselves to get needles (primary-only NEP users), (b) obtained at least some NEP needles by having others exchange for them (mixed/secondary NEP users), and (c) obtained no needles from an NEP. About 22% of 40,000 NEP visits involved secondary exchanges, and these accounted for over half of all needles exchanged. In multiple logistic regression analyses, primary-only needle exchange was significantly associated with lower levels of receptive needle sharing, backloading, sharing other injection equipment and lending used needles, and positively associated with obtaining drug treatment. Mixed/secondary needle exchange was associated with less receptive needle sharing and a greater likelihood of drug treatment. Secondary exchange facilitated HIV risk reduction but the salutary effects of NEPs were attenuated in mixed/secondary exchangers.

Prevalencia de Prácticas Indirectas de Compartir Material para Inyectarse Drogas en Galicia, Madrid, Sevilla y Valencia

OBJECTIVES

To study drug-injecting practices, particularly indirect sharing of injecting paraphernalia (ISIP), and sexual risk behavior.

METHODS

We performed a cross-sectional study of 1638 users of needle exchange programs (NEPs). Different types of ISIP were studied: taking diluted drugs in a syringe used by others, placing the needle in a recipient with other used needles, and reusing cleaning liquid previously used by others.

RESULTS

The prevalence of injecting with syringes already used by others was 16% in Galicia, 4.7% in Madrid, 17.6% in Seville and 13.2% in Valencia (p < 0.001). With geographical variations, other types of ISIP (Galicia: 32.4%; Madrid: 28.5%; Seville: 42.6%; Valencia: 27.4% -p < 0.001-) were more frequent than injecting with syringes already used by others (Galicia: 32.4%; Madrid: 28.5%; Seville: 42.6%; Valencia: 27.4% -p < 0.001-). The percentage not injecting with syringes used by others but performing ISIP was 21.7%, 25.3%, 28.2% and 18.1% (p < 0.01) respectively. In all geographical areas, sexual risk practices were more prevalent with steady sex partners (68.6%, 72.0%, 77.8%, 72.8% [NS]) than with casual partners (36.6%, 40.9%, 37.9%, 23.9% [NS]). Among injectors with a stable partner, 81.3% in Galicia, 75.9% in Madrid, 86.1% in Seville and 79.7% in Valencia reported that his/her serological status was negative for HIV or was unknown (p < 0.001).

CONCLUSIONS

ISIP is more prevalent than injection with syringes already used by others. For a substantial percentage of injectors, ISIP is the only risk practice. ISIP and the low use of condoms, particularly with steady partners, could be a contributory factor to the spread of HIV, hepatitis C virus, and hepatitis B virus infection.