Journal of the International AIDS Society - Latest Articles

Couples voluntary counseling and testing and nevirapine use in antenatal clinics in two African capitals: a prospective cohort study

Martha Conkling — 2010-03-15T00:00:00Z

Background: With the accessibility of prevention of mother to child transmission (PMTCT) services in sub-Saharan Africa, more women are being tested for HIV in antenatal care settings. Involving partners in the counselling and testing process could help prevent horizontal and vertical transmission of HIV. This study was conducted to assess the feasibility of couples' voluntary counseling and testing (CVCT) in antenatal care and to measure compliance with PMTCT. Methods: A prospective cohort study was conducted over eight months at two public antenatal clinics in Kigali, Rwanda, and Lusaka, Zambia. A convenience sample of 3625 pregnant women was enrolled. Of these, 1054 women were lost to follow up. The intervention consisted of same-day individual voluntary counselling and testing (VCT) and weekend CVCT; HIV-positive participants received nevirapine tablets. In Kigali, nevirapine syrup was provided in the labour and delivery ward; in Lusaka, nevirapine syrup was supplied in pre-measured single-dose syringes. The main outcome measures were nurse midwife-recorded deliveries and reported nevirapine use. Results: In eight months, 1940 women enrolled in Kigali (984 VCT, 956 CVCT) and 1685 women enrolled in Lusaka (1022 VCT, 663 CVCT). HIV prevalence was 14% in Kigali, and 27% in Lusaka. Loss to follow up was more common in Kigali than Lusaka (33% vs. 24%, p=0.000). In Lusaka, HIV-positive and HIV-negative women had significantly different loss-to-follow-up rates (30% vs. 22%, p=0.002). CVCT was associated with reduced loss to follow up: in Kigali, 31% of couples versus 36% of women testing alone (p=0.011); and in Lusaka, 22% of couples versus 25% of women testing alone (p=0.137). Among HIV-positive women with follow up, CVCT had no impact on nevirapine use (86-89% in Kigali; 78-79% in Lusaka). Conclusions: Weekend CVCT, though new, was feasible in both capital cities. The beneficial impact of CVCT on loss to follow up was significant, while nevirapine compliance was similar in women tested alone or with their partners. Pre-measured nevirapine syrup syringes provided flexibility to HIV-positive mothers in Lusaka, but may have contributed to study loss to follow up. These two prevention interventions remain a challenge, with CVCT still operating without supportive government policy in Zambia.

Challenges faced by health workers in providing counselling services to HIV-positive children in Uganda: a descriptive study

Joseph Rujumba — 2010-03-07T00:00:00Z

Background: The delivery of HIV counselling and testing services for children remains an uphill task for many health workers in HIV-endemic countries, including Uganda. We conducted a descriptive study to explore the challenges of providing HIV counselling and testing services to children in Uganda. Methods: A descriptive study was conducted in the districts of Kampala and Kabarole in Uganda. The data were collected using semi-structured individual interviews and focus group discussions with health workers who are involved in the care of HIV-positive children. Key informant interviews were conducted with the administrators of the 10 study healthcare institutions. Quantitative data were summarized using frequency tables, while qualitative data were analyzed using the content thematic approach. Results: Counselling children was reported to be a difficult exercise due to some children being unable to express themselves, being dependent on adults for their care, being fearful, and requiring more time to open up during counselling. This was compounded by some caretakers' unwillingness and difficulty to disclose the HIV status of their children. Other issues about the caretakers were: lack of consistency in caretakers; old age; sickness; and poverty. Health workers mentioned the following as some of the challenges they face in the delivery of HIV counselling and testing services for children: lack of counselling skills; failure to cope with the knowledge demand; difficulty to facilitate disclosure; heavy work load; and lack of other support services. Institutions were found to be constrained by limited space and lack of antiretrovirals for children. Conclusions: The major challenges in the delivery of paediatric HIV services were related to the knowledge gap in paediatric HIV and the lack of counselling skills, as well as health system-related constraints. There is a need to train health workers in child-counselling skills, especially in the issues of disclosure, sexuality and sexual abuse, as well as in addressing fears related to death and an uncertain future, in order to improve paediatric HIV care. Provision of child-friendly services, guidelines and antiretroviral formulations for children may provide a window of hope to improve HIV counselling and testing services for children.

Barriers to initiation of antiretroviral treatment in rural and urban areas of Zambia: a cross-sectional study of cost, stigma, and perceptions about ART

Matthew Fox — 2010-03-06T00:00:00Z

Background: While the number of HIV-positive patients on ART in resource-limited settings has increased dramatically, some patients eligible for treatment do not initiate ART even when it is available to them. Understanding why patients opt out of care--or are unable to opt in-is important to achieving the goal of universal access. Methods: We conducted a cross-sectional survey among 400 patients on ART (those who were able to access care) and 400 patients accessing Home Based Care (HBC) but who had not initiated ART (either not able to or chose not to access care) in two rural and two urban sites in Zambia to identify barriers to and facilitators of ART uptake. Results: HBC patients were 50% more likely to report it would be very difficult to get to the ART clinic compared to those on ART (RR 1.48; 95% CI: 1.21-1.82). Stigma was common in all areas, with 54% of HBC patients but only 15% of ART patients being afraid to go to the clinic (RR 3.61; 95% CI: 3.12-4.18). Cost barriers differed by location; urban HBC patients were 3-fold more likely to report needing to pay to travel to the clinic as those on ART (RR 2.84; 95% CI: 2.02-3.98) and 10-times more likely to believe they would need to pay a fee at the clinic (RR: 9.50; 95% CI: 2.24-40.3). In rural areas, HBC subjects were more likely to report needing to pay non-transport costs to attend the clinic compared to those on ART (RR 4.52; 95% CI: 1.91-10.7). HBC patients were twice as likely as ART patients to report not having enough food to take ARVs being a concern (27% vs. 13%, RR 2.03; 95% CI: 1.71-2.41) regardless of location and gender. Conclusions: Patients in home based care for HIV/AIDS who never initiated ART experienced greater financial and logistical barriers to seeking HIV care and had more negative perceptions about the benefits of the treatment. Future efforts to expand access to ARV care should consider ways to reduce these barriers in order to encourage more of those medically eligible for ARVs to initiate care.

Are Nepali students at risk of HIV? A cross-sectional study of condom use at first sexual intercourse among college students in Kathmandu

Ramesh Adhikari — 2010-03-02T00:00:00Z

Background: Condoms offer the best protection against unintended pregnancies and sexually transmitted infections. Little research has been conducted to determine the prevalence and investigate the influencing factors of condom use at first sexual intercourse among college students. Methods: A self-administered questionnaire was completed by 1137 college students (573 male and 564 female) in the Kathmandu Valley. Analyses were confined to 428 students who reported that they have ever had sexual intercourse. The association between condom use at first sexual intercourse and the explanatory variables was assessed in bivariate analysis using Chi-square tests. The associations were further explored using multivariate logistic analysis in order to identify the significant predictors after controlling for other variables. Results: Among the sexually active students, less than half (48%) had used condoms during first sexual intercourse. The results from the logistic regression analysis revealed that age, caste and/or ethnicity, age at first sexual intercourse, types of first sex partner, alcohol consumption and mass media exposure are significant predictors for condom use at first sexual intercourse among the college students. Students in the older age groups who had first sex were about four times (16 to 19 years old) (OR=3.5) more likely and nine times (20 or older) (OR=8.9) more likely than the students who had sex before 16 years of age to use condoms at first sexual intercourse.Moreover, those students who had first sex with commercial sex worker were five times (OR=4.9) more likely than those who had first sex with their spouse to use condoms at first sex. Furthermore, students who had higher exposure to both print and electronic media were about twice (OR=1.75) as likely as those who had lower media exposure to use condoms. On the other hand, students who frequently consumed alcohol were 54% (OR=0.46) less likely to use condoms at first sexual intercourse than those who never or rarely consumed alcohol. Conclusions: The rate of condom use at first sexual intercourse is low among the students. It indicates students are exposed to health hazards through their sexual behaviour. If low use of condom at first sex continues, vulnerable sexual networks will grow among them that allow quicker spreading of sexually transmitted diseases and HIV. Findings from this study point to areas that policy and programmes can address to provide youth with access to the kinds of information and services they need to achieve healthy sexual and reproductive lives.

Gender & sexuality: emerging perspectives from the heterosexual epidemic in South Africa & implications for HIV risk and prevention

Rachel Jewkes — 2010-02-09T00:00:00Z

Research shows that gender power inequity in relationships and intimate partner violence places women at enhanced risk of HIV infection. Men who have been violent towards their partners are more likely to have HIV. Men's behaviours show a clustering of violent and risky sexual practices, suggesting important connections. This paper draws on Raewyn Connell's notion of hegemonic masculinity and reflections on emphasized femininities to argue that these sexual, and male violent, practices are rooted in and flow from cultural ideals of gender identities. The latter enables us to understand why men and women behave as they do, and the emotional and material context within which sexual behaviours are enacted.In South Africa, while gender identities show diversity, the dominant ideal of black African manhood emphasizes toughness, strength and expression of prodigious sexual success. It is a masculinity women desire; yet it is sexually risky and a barrier to men engaging with HIV treatment. Hegemonically masculine men are expected to be in control of women, and violence may be used to establish this control. Instead of resisting this, the dominant ideal of femininity embraces compliance and tolerance of violent and hurtful behaviour, including infidelity.The women partners of hegemonically masculine men are at risk of HIV because they lack control of the circumstances of sex during particularly risky encounters. They often present their acquiescence to their partners' behaviour as a trade off made to secure social or material rewards, for this ideal of femininity is upheld, not by violence per se, by a cultural system of sanctions and rewards. Thus, men and women who adopt these gender identities are following ideals with deep roots in social and cultural processes, and thus, they are models of behaviour that may be hard for individuals to critique and in which to exercise choice. Women who are materially and emotionally vulnerable are least able to risk experiencing sanctions or foregoing these rewards and thus are most vulnerable to their men folk.We argue that the goals of HIV prevention and optimizing of care can best be achieved through change in gender identities, rather than through a focus on individual sexual behaviours.

Sexual vulnerability and HIV seroprevalence among the deaf and hearing impaired in Cameroon

Adonis Touko — 2010-02-04T00:00:00Z

Background: This quantitative cross-sectional study examines sexual behaviour of a target group of hearing-impaired persons in Yaounde, the capital city of the Republic of Cameroon. It measures their HIV prevalence to enable assessment of their sexual vulnerability and to help reduce the gap in existing HIV serology data among people with disabilities in general and the deaf in particular. Methods: The snowball sampling procedure was adopted as an adequate approach to meet this hard-to-reach group. A total of 118 deaf participants were interviewed for the behavioural component, using sign language as a means of data collection, while 101 participants underwent HIV serology testing. Descriptive analyses were done for behavioural data with Epi info software, while sera were tested by health personnel, using rapid and confirmation test reagents. Results: From the results, it was clear that the hearing impaired were highly involved in risky sexual practices, as observed through major sexual indicators, such as: age at first sexual intercourse; condom use; and knowledge of sexually transmitted infections and AIDS. Furthermore, it was noted that the HIV prevalence rate of the hearing impaired in the capital of Cameroon was 4%, close to the prevalence in the city's general population (4.7%). Conclusions: Such results suggest that there is a need for in-depth behavioural research and serological studies in this domain to better understand the determinants of risky sexual behaviour among the hearing impaired, and to propose operational prevention approaches for this group.

Impact of HIV-1 viral subtype on disease progression and response to antiretroviral therapy

Philippa Easterbrook — 2010-02-03T00:00:00Z

Background: Our intention was to compare the rate of immunological progression prior to antiretroviral therapy (ART) and the virological response to ART in patients infected with subtype B and four non-B HIV-1 subtypes (A, C, D and the circulating recombinant form, CRF02-AG) in an ethnically diverse population of HIV-1-infected patients in south London. Methods: A random sample of 861 HIV-1-infected patients attending HIV clinics at King's and St Thomas' hospitals' were subtyped using an in-house enzyme-linked immunoassay and env sequencing. Subtypes were compared on the rate of CD4 cell decline using a multi-level random effects model. Virological response to ART was compared using the time to virological suppression (< 400 copies/ml) and rate of virological rebound (> 400 copies/ml) following initial suppression. Results: Complete subtype and epidemiological data were available for 679 patients, of whom 357 (52.6%) were white and 230 (33.9%) were black African. Subtype B (n = 394) accounted for the majority of infections, followed by subtypes C (n = 125), A (n = 84), D (n = 51) and CRF02-AG (n = 25). There were no significant differences in rate of CD4 cell decline, initial response to highly active antiretroviral therapy and subsequent rate of virological rebound for subtypes B, A, C and CRF02-AG. However, a statistically significant four-fold faster rate of CD4 decline (after adjustment for gender, ethnicity and baseline CD4 count) was observed for subtype D. In addition, subtype D infections showed a higher rate of virological rebound at six months (70%) compared with subtypes B (45%, p = 0.02), A (35%, p = 0.004) and C (34%, p = 0.01) Conclusions: This is the first study from an industrialized country to show a faster CD4 cell decline and higher rate of subsequent virological failure with subtype D infection. Further studies are needed to identify the molecular mechanisms responsible for the greater virulence of subtype D.

Integration of HIV/AIDS services into African primary health care: lessons learned for health system strengthening in Mozambique -- a case study

James Pfeiffer — 2010-01-20T00:00:00Z

IntroductionIn 2004, Mozambique, supported by large increases in international disease-specific funding, initiated a national rapid scale-up of antiretroviral treatment (ART) and HIV care through a vertical "Day Hospital" approach. Though this model showed substantial increases in people receiving treatment, it diverted scarce resources away from the primary health care (PHC) system. In 2005, the Ministry of Health (MOH) began an effort to use HIV/AIDS treatment and care resources as a means to strengthen their PHC system. The MOH worked closely with a number of NGOs to integrate HIV programs more effectively into existing public-sector PHC services.Case DescriptionIn 2005, the Ministry of Health and Health Alliance International initiated an effort in two provinces to integrate ART into the existing primary health care system through health units distributed across 23 districts. Integration included: a) placing ART services in existing units; b) retraining existing workers; c) strengthening laboratories, testing, and referral linkages; e) expanding testing in TB wards; f) integrating HIV and antenatal services; and g) improving district-level management. Discussion: By 2008, treatment was available in nearly 67 health facilities in 23 districts. Nearly 30,000 adults were on ART. Over 80,000 enrolled in the HIV/AIDS program. Loss to follow-up from antenatal and TB testing to ART services has declined from 70% to less than 10% in many integrated sites. Average time from HIV testing to ART initiation is significantly faster and adherence to ART is better in smaller peripheral clinics than in vertical day hospitals. Integration has also improved other non-HIV aspects of primary health care. Conclusion: The integration approach enables the public sector PHC system to test more patients for HIV, place more patients on ART more quickly and efficiently, reduce loss-to-follow-up, and achieve greater geographic HIV care coverage compared to the vertical model. Through the integration process, HIV resources have been used to rehabilitate PHC infrastructure (including laboratories and pharmacies), strengthen supervision, fill workforce gaps, and improve patient flow between services and facilities in ways that can benefit all programs. Using aid resources to integrate and better link HIV care with existing services can strengthen wider PHC systems.

HIV related restrictions on entry, residence and stay in the WHO European Region: a survey

Jeffrey Lazarus — 2010-01-15T00:00:00Z

Background: Back in 1987, the World Health Organization (WHO) concluded that the screening of international travellers was an ineffective way to prevent the spread of HIV. However, some countries still restrict the entrance and/or residency of foreigners with an HIV infection. HIV-related travel restrictions have serious implications for individual and public health, and violate internationally recognized human rights. In this study, we reviewed the current situation regarding HIV-related travel restrictions in the 53 countries of the WHO European Region. Methods: We retrieved the country-specific information chiefly from the Global Database on HIV Related Travel Restrictions at hivtravel.org. We simplified and standardized the database information to enable us to create an overview and compare countries. Where data was outdated, unclear or contradictory, we contacted WHO HIV focal points in the countries or appropriate non-governmental organizations. The United States Bureau of Consular Affairs website was also used to confirm and complement these data. Results: Our review revealed that there are no entry restrictions for people living with HIV in 51 countries in the WHO European Region. In 11 countries, foreigners living with HIV applying for long-term stays will not be granted a visa. These countries are: Andorra, Armenia, Cyprus (denies access for non-European Union citizens), Hungary, Kazakhstan, Moldova, the Russian Federation, Tajikistan, Turkmenistan, Ukraine and Uzbekistan. In Uzbekistan, an HIV-positive foreigner cannot even enter the country, and in Georgia, we were not able to determine whether there were any HIV-related travel restrictions due to a lack of information. Conclusions: In 32% of the countries in the European Region, either there are some kind of HIV-related travel restrictions or we were unable to determine if such restrictions are in force. Most of these countries defend restrictions as being justified by public health concerns. However, there is no evidence that denying HIV-positive foreigners access to a country is effective in protecting public health. Governments should revise legislation on HIV-related travel restrictions. In the meantime, a joint effort is needed to draw attention to the continuing discrimination and stigmatization of people living with HIV that takes place in those European Region countries where such laws and policies are still in force.

Highly active antiretroviral treatment for the prevention of HIV transmission

Reuben Granich — 2010-01-12T00:00:00Z

In 2007 an estimated 33 million people were living with HIV; 67% resided in sub-Saharan Africa, with 35% in eight countries alone. In 2007, there were about 1.4 million HIV-positive tuberculosis cases. Globally, approximately 4 million people had been given highly active antiretroviral therapy (HAART) by the end of 2008, but in 2007, an estimated 6.7 million were still in need of HAART and 2.7 million more became infected with HIV.Although there has been unprecedented investment in confronting HIV/AIDS - the Joint United Nations Programme on HIV/AIDS estimates $13.8 billion was spent in 2008 - a key challenge is how to address the HIV/AIDS epidemic given limited and potentially shrinking resources. Economic disparities may further exacerbate human rights issues and widen the increasingly divergent approaches to HIV prevention, care and treatment.HIV transmission only occurs from people with HIV, and viral load is the single greatest risk factor for all modes of transmission. HAART can lower viral load to nearly undetectable levels. Prevention of mother to child transmission offers proof of the concept of HAART interrupting transmission, and observational studies and previous modelling work support using HAART for prevention. Although knowing one's HIV status is key for prevention efforts, it is not known with certainty when to start HAART.Building on previous modelling work, we used an HIV/AIDS epidemic of South African intensity to explore the impact of testing all adults annually and starting persons on HAART immediately after they are diagnosed as HIV positive. This theoretical strategy would reduce annual HIV incidence and mortality to less than one case per 1000 people within 10 years and it would reduce the prevalence of HIV to less than 1% within 50 years. To explore HAART as a prevention strategy, we recommend further discussions to explore human rights and ethical considerations, clarify research priorities and review feasibility and acceptability issues.