Antiretroviral Treatment and Sexual Risk Behavior in South Africa

The sexual behavior of individuals living with HIV determines the onward transmission of HIV. With the understanding that antiretroviral therapy (ART) prevents transmission of HIV, the sexual behaviors of the individuals not on ART with unsuppressed viral loads becomes of the greatest importance in elucidating transmission. We assessed the association between being on ART and sexual risk behavior among those living with HIV in a nationally representative population-based cross-sectional survey of households in South Africa that was conducted in 2012. Of 2237 adults (aged 15–49) who tested HIV-seropositive, 667 (29.8 %) had detectable antiretroviral drugs in their blood specimens. Among males, 77.7 % of those on ART reported having had sex in the past year contrasted with 88.4 % of those not on ART (p = 0.001); among females, 72.2 % of those on ART reported having had sex in the past year while 80.3 % of those not on ART did (p < 0.001). For males and females, the odds of reporting consistent condom use and condom use at last sex were statistically significantly higher for individuals on ART compared to those not on ART (males: consistent condom use aOR 2.8, 95 % CI 1.6–4.9, condom use at last sex aOR 2.6, 95 % CI 1.5–4.6; females: consistent condom use aOR 2.3, 95 % CI 1.7–3.1, condom use at last sex aOR 2.3, 95 % CI 1.7–3.1), while there were no statistically significant differences in odds of reporting multiple sexual partners in the past year. In this nationally representative population-based survey of South African adults, we found evidence of less risky sexual risk behavior among people living with HIV on ART compared to those not on ART.     

Bisexual Behavior Among Male Injection Drug Users in New York City

Drug using men who have sex with men and women (MSMW) may be at high risk for HIV infection and transmitting HIV to sex partners. In 2012, injection drug users (IDUs) were sampled in New York City for the National HIV Behavioral Surveillance cross-sectional study using respondent-driven sampling. Logistic regression was used to calculate crude and adjusted odds ratios (aOR) and 95 % confidence intervals (95 %CI) to determine correlates of bisexual behavior in the past 12 months. Of 333 participants, 47(14.1 %) reported MSMW. Variables independently associated (p < 0.05) with MSMW included bisexual sexual identity (vs. “straight”) (adjusted odds ratio (aOR) 92.6; 95 % CI 18.9, 454.5), Bronx residence [vs. Manhattan (aOR 8.4; 95 %CI 1.6,43.7)], past 12 month behaviors of having sex with ≥3 sex partners (aOR 18.1; 95 % CI 3.3,98.4), “sold” sex (aOR 8.5; 95 % CI 2.3, 31.5), “bought” sex (aOR 0.2; 95 % CI 0.1, 0.9), and injection methamphetamine use (aOR 20.5; 95 % CI 3.0, 139.7). MSM IDUs are an important subgroup to consider for HIV interventions, as they may not be reached through HIV prevention programming aimed at MSM.     

Determinants of Risky Sexual Behavior Among Injecting Drug Users (IDUs) in Georgia

Injection risk practices and risky sexual behaviors place injection drug users (IDUs) and their sexual partners particularly vulnerable to HIV. The purpose of the study was to describe and understand determinants of high-risk sexual behavior among IDUs in Georgia. A cross-sectional, anonymous survey assessed knowledge, behavior and HIV status in IDUs in five Georgian cities (Tbilisi, Gori, Telavi, Zugdidi, Batumi) in 2009. The study enrolled in total 1,127 (1,112 males, 15 females) IDUs. Results indicate that occasional sexual relationships are common among male IDUs, including married ones. A subsample of 661 male IDUs who reported having occasional and paid sex partners during the last 12 months was analyzed. Multivariate analysis shows that not having a regular partner in the last 12 month (adjusted odds ratio (aOR) 1.57, 95 % CI 1.04 2.37), and using previously used needles/syringes at last injecting (aOR 2.37, 95 % I 1.10–5.11) are independent correlates of inconsistent condom use with occasional and paid sexual partners among IDUs. Buprenorphine injectors have lower odds of inconsistent condom use with occasional and paid sexual partners compared to heroin injectors (aOR 0.47, 95 % CI 0.27–0.80), and IDUs who live in Telavi are twice more likely to engage in such risky sexual behavior than capital city residents (aOR 2.55, 95 % CI 1.46–4.48). More effective programs focused on sexual risk behavior reduction strategies should be designed and implemented.     

Economic Resources and HIV Preventive Behaviors Among School-Enrolled Young Women in Rural South Africa (HPTN 068)

Individual economic resources may have greater influence on school-enrolled young women’s sexual decision-making than household wealth measures. However, few studies have investigated the effects of personal income, employment, and other financial assets on young women’s sexual behaviors. Using baseline data from the HIV Prevention Trials Network (HPTN) 068 study, we examined the association of ever having sex and adopting sexually-protective practices with individual-level economic resources among school-enrolled women, aged 13–20 years (n = 2533). Age-adjusted results showed that among all women employment was associated with ever having sex (OR 1.56, 95 % CI 1.28–1.90). Among sexually-experienced women, paid work was associated with changes in partner selection practices (OR 2.38, 95 % CI 1.58–3.58) and periodic sexual abstinence to avoid HIV (OR 1.71, 95 % CI 1.07–2.75). Having money to spend on oneself was associated with reducing the number of sexual partners (OR 1.94, 95 % CI 1.08–3.46), discussing HIV testing (OR 2.15, 95 % CI 1.13–4.06), and discussing condom use (OR 1.99, 95 % CI 1.04–3.80). Having a bank account was associated with condom use (OR 1.49, 95 % CI 1.01–2.19). Economic hardship was positively associated with ever having sex, but not with sexually-protective behaviors. Maximizing women’s individual economic resources may complement future prevention initiatives.     

Structural Bridging Network Position is Associated with HIV Status in a Younger Black Men Who Have Sex with Men Epidemic

Younger Black men who have sex with men (BMSM) ages 16–29 have the highest rates of HIV in the United States. Despite increased attention to social and sexual networks as a framework for biomedical intervention, the role of measured network positions, such as bridging and their relationship to HIV risk has received limited attention. A network sample (N = 620) of BMSM respondents (N = 154) and their MSM and transgendered person network members (N = 466) was generated through respondent driven sampling of BMSM and elicitation of their personal networks. Bridging status of each network member was determined by a constraint measure and was used to assess the relationship between this bridging and unprotected anal intercourse (UAI), sex-drug use (SDU), group sex (GS) and HIV status within the network in South Chicago. Low, moderate and high bridging was observed in 411 (66.8 %), 81 (13.2 %) and 123 (20.0 %) of the network. In addition to age and having sex with men only, moderate and high levels of bridging were associated with HIV status (aOR 3.19; 95 % CI 1.58–6.45 and aOR 3.83; 95 % CI 1.23–11.95, respectively). Risk behaviors observed including UAS, GS, and SDU were not associated with HIV status, however, they clustered together in their associations with one another. Bridging network position but not risk behavior was associated with HIV status in this network sample of younger BMSM. Socio-structural features such as position within the network may be important when implementing effective HIV prevention interventions in younger BMSM populations.     

Acceptability of Peer-Delivered HIV Testing and Counselling Among Men Who Have Sex with Men (MSM) and Transgender Women (TW) in Myanmar

Men who have sex with men (MSM) and transgender women (TW) are a priority population for HIV prevention in Myanmar but report sub-optimal HIV testing frequency. Previous studies have shown that peer involvement in HIV testing can normalize stigmatized sexualities and reduce barriers to testing. We explored the acceptability of peer-delivered HIV testing among 425 undiagnosed MSM and TW in Yangon and Mandalay. An overwhelming majority of participants (86%) reported being ‘comfortable/very comfortable’ with peer-delivered HIV testing. Logistic regression identified reporting sexual identity as Apone [adjusted odds ratio (aOR) 3.8; 95% CI 1.2–11.7], recent HIV testing (aOR 3.1; 95% CI 1.4–6.5), reporting a high likelihood of HIV acquisition (aOR 3.6; 95% CI 1.7–7.6), and reporting ≥ 5 casual partners in the past 3 months (aOR 0.2; 95% CI 0.1–0.6) as associated with peer-delivered HIV testing acceptability. Given ongoing HIV vulnerability among MSM and TW in Myanmar, peer-delivered testing may offer prevention benefits by increasing testing rates and identifying undiagnosed infection earlier.     

Non-Injection and Injection Drug Use and STI/HIV Risk in the United States: The Degree to which Sexual Risk Behaviors Versus Sex with an STI-Infected Partner Account for Infection Transmission among Drug Users

We used the National Longitudinal Study of Adolescent Health (N = 14,322) to measure associations between non-injection crack-cocaine and injection drug use and sexually transmitted infection including HIV (STI/HIV) risk among young adults in the United States and to identify factors that mediate the relationship between drug use and infection. Respondents were categorized as injection drug users, non-injection crack-cocaine users, or non-users of crack-cocaine or injection drugs. Non-injection crack-cocaine use remained an independent correlate of STI when adjusting for age at first sex and socio-demographic characteristics (adjusted prevalence ratio (APR): 1.64, 95 % confidence interval (CI): 1.16–2.31) and sexual risk behaviors including multiple partnerships and inconsistent condom use. Injection drug use was strongly associated with STI (APR: 2.62, 95 % CI: 1.29–5.33); this association appeared to be mediated by sex with STI-infected partners rather than by sexual risk behaviors. The results underscore the importance of sexual risk reduction among all drug users including IDUs, who face high sexual as well as parenteral transmission risk.     

HIV,Hepatitis C,and Other Sexually Transmitted Infections Among Male Sex Workers in Ho Chi Minh City,Vietnam

There is little data on the burden of HIV and other infections that affect male sex workers (MSW) in Vietnam. We conducted behavioral and biological sexual health surveys with 300 MSW in Ho Chi Minh City. Generalized estimating equation models were built to assess factors associated with HIV, hepatitis C, and other sexually transmitted infections (STI). Of 300 MSW, 19 (6.3 %) were diagnosed seropositive for HIV, 11 (3.7 %) had hepatitis C, and 26 (8.7 %) had at least one prevalent STI. In a multivariable model, opiate use was significantly associated with HIV infection (aOR 6.46, 95 % CI 1.28–32.7) and hepatitis C (aOR = 19.6, 95 % CI 2.35–163.6). Alcohol dependency was associated with increased odds of hepatitis C (aOR = 4.79, 95 % CI 1.02–22.5) and decreased odds of other STI (aOR = 0.30, 95 % CI 0.10–0.97). These findings suggest that MSW in Vietnam would benefit from regular HIV and STI testing, as well as linkage to care and substance use rehabilitation services.     

Alcohol Use and Associated Sexual and Substance Use Behaviors Among Men Who Have Sex with Men in Moscow,Russia

Alcohol use is a public health problem in the Russian Federation. This study explored relationships between alcohol use and behavioral risks for HIV transmission among men who have sex with men (MSM) in Moscow, Russia. Alcohol use disorder identification test (AUDIT) scores for 1367 MSM participating in a cross-sectional survey and HIV testing were categorized to: “abstinence/low use”, “hazardous use”, “harmful use/dependency”. Multiple logistic regression models compared dependent variables for sexual and drug use behaviors across alcohol use strata. Hazardous and harmful/dependent alcohol use were significantly associated with high-risk sexual behaviors and drug use. Harmful use/dependency was associated with an increased odds of having more than five male sex partners (last 12 months; adjusted odds ratios—AOR 1.69; 95 % CI 1.25–2.27), inconsistent condom use during anal intercourse (AOR 2.19; 95 % CI 1.61–2.96) and, among those using recreational drugs, injection drug use (last month; AOR 4.38: 95 % CI 1.13–17.07) compared to abstinent/low-level users. Harmful/dependent use was marginally associated with HIV infection (AOR 1.48; 95 % CI 0.97–2.25). HIV prevention efforts for MSM in Moscow may benefit from addressing problem alcohol use to mitigate high-risk behaviors.     

The Role of Internalized Stigma in the Disclosure of Injecting Drug Use Among People Who Inject Drugs and Self-Report as HIV-Positive in Kohtla-Järve,Estonia

Disclosure of injecting drug use and its associations with stigma have received very little research attention. This cross-sectional study examined the role of internalized HIV and drug stigma (i.e., self-stigmatization) in the disclosure of injecting drug use among people who inject drugs (PWID) self-reporting as HIV-positive (n = 312) in Kohtla-Järve, Estonia. The internalization of both stigmas was relatively high. On average, PWID disclosed to three disclosure targets out of seven. Disclosure was highest to close friends and health care workers and lowest to employers and casual sex partners. Internalized drug stigma was negatively associated with disclosure to other family members (AOR = 0.48; 95% CI 0.30–0.77) and health care workers (AOR = 0.46; 95% CI 0.25–0.87). Internalized HIV stigma was positively associated with disclosure to health care workers (AOR = 2.26; 95% CI 1.27–4.00). No interaction effect of internalized stigmas on disclosures emerged. We concluded that effects of internalized stigmas on disclosures are few and not uniform.     

Marijuana Use as a Sex-Drug is Associated with HIV Risk Among Black MSM and Their Network

Black men who have sex with men (BMSM) are highest risk for HIV seroconversion in the United States. Little attention has been paid to marijuana use among BMSM and potential for HIV risk. A sample of 202 BMSM was generated through respondent driven sampling. The relationship between differential marijuana use and both HIV risk behavior and social network factors were examined using weighted logistic regression. Of the BMSM in this sample 60.4 % use marijuana in general and 20.8 % use marijuana as sex-drug. General marijuana use was significantly associated with participation in group sex (AOR 3.50; 95 % CI 1.10–11.10) while marijuana use as a sex drug was significantly associated with both participation in condomless sex (AOR 2.86; 95% CI 1.07–7.67) and group sex (AOR 3.39; 95% CI 1.03–11.22). Respondents with a moderate or high perception of network members who use marijuana were more likely to use marijuana both in general and as a sex-drug. Network member marijuana use, while not associated with risk behaviors, is associated with individual marijuana use and individual marijuana use in the context of sex is associated with risk practices. Targeting interventions towards individuals and their respective networks that use marijuana as a sex drug may reduce HIV risk.     

Combined HIV Prevention,the New York City Condom Distribution Program,and the Evolution of Safer Sex Behavior Among Persons Who Inject Drugs in New York City

Examine long term sexual risk behaviors among persons who inject drugs (PWID) in New York City following implementation of “combined” prevention programming, including condom social marketing. Quantitative interviews and human immunodeficiency virus (HIV) testing were conducted among PWID entering Beth Israel Medical Center drug treatment programs 1990–2012. Data were analyzed by four time periods corresponding to the cumulative implementation of HIV prevention interventions. 7,132 subjects were recruited from 1990 to 2012; little change in sexual behavior occurred among HIV seronegative subjects, while HIV seropositive subjects reported significant decreases in being sexually active and significant increases in consistent condom use. HIV transmission risk (being HIV positive and engaging in unprotected sex) declined from 14 % in 1990–1995 to 2 % in 2007–2012 for primary sexual partners and from 6 to 1 % for casual partners. Cumulative implementation of combined prevention programming for PWID was associated with substantial decreases in sexual risk behavior among HIV seropositives.     

Peer Social Support is Associated with Recent HIV Testing Among Young Black Men Who Have Sex with Men

Resiliency factors such as social support have been associated with more frequent HIV testing among MSM. We examined the association between social support and delayed HIV testing in the context of structural discrimination and individual factors among young Black MSM. We combined two independent cross-sectional samples recruited 1 year apart from a venue-based, modified time-location sampling study of young Black MSM aged 18–29 years in the US South. Our subsample (N = 813) was men who self-reported not being HIV positive and who indicated they had one or more male sex partners in the past 2 months. Using a social epidemiology framework we estimated associations of structural (racism and homophobia), social (social support from other Black MSM friends) and individual factors with delayed HIV testing (>6 months ago) using logistic regression. Bivariate analyses demonstrated that individual level variables as well as experiences of racism (OR 1.20, 95% CI 1.02–1.41) and homophobia (OR 1.49, 95 % CI 1.02–2.17) were associated with higher risk of delayed HIV testing. Receiving social support from other Black MSM friends was associated with lower risk of delayed HIV testing (OR 0.80, 95 % CI 0.67–0.95). In multivariable models, social support remained significantly associated with lower risk of delayed HIV testing after inclusion of structural and individual level variables. Social support has a positive and robust association with HIV testing among young Black MSM. Whether community building and development of resiliency factors can overcome structural, social, and individual-level barriers to HIV prevention and care for young Black MSM warrants further study.     

Sexual risk behavior and uptake of HIV counseling and testing among youth in Metropolitan Kumasi,Ghana

Research on HIV counselling and testing (HCT) has proliferated in Ghana but limited evidence exists about the uptake of HCT among a large population that has been shown to engage in HIV risk-related behavior in Metropolitan Kumasi. With retrospective cross-sectional data from a representative sample of sexually active young people, multivariate logistic regression models examine the variables associated with HCT uptake in Kumasi. Among 906 participants (male 51% and female 49%, with a mean age ±SD, 25?±?6), 22% had utilized HCT in the last six months despite the higher knowledge of HCT (84%) mainly through mass media (65%) and health providers (27%). Besides, less than 20% of the sample intended to undergo HCT services. Multivariate logistic regression analysis showed that female gender (adjusted odds ratio [aOR]?=?1.830; 95% CI: 1.280–47.831; p?p?=?0.040), having sexual intercourse with irregular partner (aOR?=?5.597; 95% CI: 1.776–17.638; p?=?0.018), practiced unprotected sex (aOR?=?2.614; 95% CI: 1.821–6.472; p?=?0.002), having multiple sex partners (aOR?=?2.902; 95% CI: 1.405–7.226; p?p?相似文献   

A Peer-Educator Network HIV Prevention Intervention Among Injection Drug Users: Results of a Randomized Controlled Trial in St. Petersburg, Russia

We evaluated the efficacy of a peer-educator network intervention as a strategy to reduce HIV acquisition among injection drug users (IDUs) and their drug and/or sexual networks. A randomized controlled trial was conducted in St. Petersburg, Russia among IDU index participants and their risk network participants. Network units were randomized to the control or experimental intervention. Only the experimental index participants received training sessions to communicate risk reduction techniques to their network members. Analysis includes 76 index and 84 network participants who were HIV uninfected. The main outcome measure was HIV sero-conversion. The incidence rates in the control and experimental groups were 19.57 (95 % CI 10.74–35.65) and 7.76 (95 % CI 3.51–17.19) cases per 100 p/y, respectively. The IRR was 0.41 (95 % CI 0.15–1.08) without a statistically significant difference between the two groups (log rank test statistic X² = 2.73, permutation p value = 0.16). Retention rate was 67 % with a third of the loss due to incarceration or death. The results show a promising trend that this strategy would be successful in reducing the acquisition of HIV among IDUs.     

High HIV Prevalence and Associated Risk Factors Among Female Sexual Partners of Male Injection Drug Users (MWID) in Ho Chi Minh City,Vietnam

Injection drug use is a major factor in acquiring and transmitting HIV in Vietnam. This analysis aims to present estimates of HIV infection and factors associated with HIV infection among female sex partners (FSP) of MWID in Ho Chi Minh City (HCMC), Vietnam. Cross-sectional surveys were conducted in 2011 and 2013 among males who inject drugs (MWID) who then referred their FSP for a behavioral and biologic survey. In total, 445 MWID and FSPs were enrolled. HIV prevalence among MWID was 50 and 35 % among FSPs. Among FSPs, 60.3 % reported ever using illegal drugs and among those, 72.7 % reported ever injecting illicit drugs. Among FSP, injection drug for >1 year [adjusted Odds Ratio (aOR), 95 % CI 2.94, 1.19–7.26), p value = <0.001] and having a male partner infected with HIV [(aOR 3.35: 1.97–5.69), p value = <0.001] were associated with HIV infection. The prevalence of HIV infection is high among FSP of MWID in HCMC and is highly associated with the injection drug use behavior of the FSP. Harm-reduction intervention programs that focus on the MWID-FSP couple or directly on the FSPs are required.     

Communicating HIV Status in Sexual Interactions: Assessing Social Cognitive Constructs, Situational Factors, and Individual Characteristics Among South African MSM

This study assessed whether social cognitive constructs, situational factors, and individual characteristics were associated with communicating HIV status and whether communication was related to sexual risk behavior. A quota-sampling method stratified by age, race, and township was used to recruit 300 men who have sex with men to participate in a community-based survey in Pretoria in 2008. Participants reported characteristics of their last sexual encounter involving anal sex, including whether they or their partner had communicated their HIV status. Fifty-nine percent of participants reported that they or their partner had communicated their HIV status. HIV communication self-efficacy (aOR = 1.2, 95 % CI: 1.04–1.68), being with a steady partner (aOR = 0.36, 95 % CI: 0.19–0.67), and being Black (versus White; aOR = 0.08, 95 % CI: 0.03–0.27) were independently associated with communicating HIV status. Communicating HIV status was not associated with unprotected anal intercourse. HIV communication self-efficacy increases men’s likelihood of communicating HIV status. Being with a steady partner and being Black reduces that likelihood. Communication about HIV status did not lead to safer sex.     

Correlates of PrEP Indication in a Multi-Site Cohort of Young HIV-Uninfected Transgender Women

Transgender women are at high risk of HIV infection, with younger transgender women (YTW) particularly vulnerable. Pre-Exposure Prophylaxis (PrEP) has shown efficacy in reducing HIV acquisition, but little is known about PrEP indication or initiation among YTW. Baseline data from 180 YTW age 18–29 years enrolled in Project LifeSkills, an on-going HIV prevention intervention for YTW, were analyzed to examine factors associated with PrEP indication. The sample (mean age = 23.4, SD = 3.2) was comprised largely of women of color (69 %) and of low socioeconomic status (71 % unemployed). Overall, 62 % met criteria for PrEP indication, but only 5 % reported ever taking PrEP. Factors associated with increased odds of PrEP indication were: PrEP interest (aOR 3.24; 95 % CI 1.44, 7.33), number of recent anal sex partners (aOR 1.23; 95 % CI 1.04, 1.46), and lower collective self-esteem scores (aOR 0.67; 95 % CI 0.47, 0.94). Despite high levels of PrEP indication, there remain low levels of PrEP awareness and uptake among YTW.     

Current Cigarette Smoking Among HIV-Positive Current and Former Drug Users: Associations with Individual and Social Characteristics

Cigarette smoking is endemic among HIV-positive populations and is related to substantial morbidity and mortality. Research has largely focused on individual-level characteristics associated with smoking, with less attention to social factors. We aimed to explore individual- and social-level characteristics associated with current cigarette smoking among people living with HIV. Data came from 358 individuals on antiretroviral therapy interviewed in a study on informal HIV caregiving, conducted in Baltimore, MD, USA. Most participants (75 %) were current smokers and 45 % reported current illegal drug use. In adjusted logistic regression analyses, current drug use (aOR 2.90, 95 % CI 1.58–5.30), 12-step program participation (aOR 1.74, 95 % CI 1.02–2.97), and having a main Supporter who is a current smoker (aOR 1.93, 95 % CI 1.12–3.33) were associated with current smoking. Findings suggest the importance of social-level factors in cigarette smoking among HIV seropositive drug users and have implications for developing targeted smoking cessation interventions for smokers living with HIV.     

High Uptake of HIV Testing in a Cohort of Male Injection Drug Users in Delhi, India: Prevalence and Correlates of HIV Infection

We report baseline findings from a longitudinal cohort study to examine HIV incidence, high-risk injection and sexual behaviors of 3,792 male injection drug users (IDUs) in Delhi. The majority (95.4 %) accepted HIV testing; HIV prevalence was 21.9 %. In multivariate analysis, belonging to states adjacent to Delhi (AOR: 1.23; 95 % CI: 1.07–1.52), earning INR 500–1,500 (AOR: 2.38; 95 % CI: 1.43–3.96); duration of drug use 2–5 years (AOR: 2.02; 95 % CI: 1.09–3.73), 6–10 years (AOR: 2.81; 95 % CI: 1.55–5.11), ≥11 years (AOR: 3.35; 95 % CI: 1.84–6.11); prior HIV testing (AOR: 1.60; 95 % CI: 1.35–1.91), self-reported risky-injection behavior (AOR: 1.60; 95 % CI: 1.33–1.92), and utilization of harm-reduction services (AOR: 1.32; 95 % CI: 1.11–1.58) were positively associated with HIV infection. Alcohol use ≤2 times/week (AOR: 0.67; 95 % CI: 0.55–0.82) or ≥3 times/week (AOR: 0.74; 95 % CI: 0.54–1.01), unit increase in age (AOR: 0.99; 95 % CI: 0.98–1.00), ≥7 years of schooling (AOR: 0.82; 95 % CI: 0.66–1.02) and unsafe sex with any female partner (AOR: 0.69; 95 % CI: 0.55–0.86) were negatively associated with HIV infection. HIV prevalence remains high among male IDUs in Delhi. HIV prevention programs should include comprehensive package of services for IDUs.