Tackling HIV in resource poor countries

How epidemics end

As COVID-19 drags on and new vaccines promise widespread immunity, the world's attention has turned to predicting how the present pandemic will end. How do societies know when an epidemic is over and normal life can resume? What criteria and markers indicate such an end? Who has the insight, authority, and credibility to decipher these signs? Detailed research on past epidemics has demonstrated that they do not end suddenly; indeed, only rarely do the diseases in question actually end. This article examines the ways in which scholars have identified and described the end stages of previous epidemics, pointing out that significantly less attention has been paid to these periods than to origins and climaxes. Analysis of the ends of epidemics illustrates that epidemics are as much social, political, and economic events as they are biological; the "end," therefore, is as much a process of social and political negotiation as it is biomedical. Equally important, epidemics end at different times for different groups, both within one society and across regions. Multidisciplinary research into how epidemics end reveals how the end of an epidemic shifts according to perspective, whether temporal, geographic, or methodological. A multidisciplinary analysis of how epidemics end suggests that epidemics should therefore be framed not as linear narratives-from outbreak to intervention to termination-but within cycles of disease and with a multiplicity of endings.

Community-Based ART Programs: Sustaining Adherence and Follow-up

The advent of antiretroviral therapy (ART) in 1996 brought with it an urgent need to develop models of health care delivery that could enable its effective and equitable delivery, especially to patients living in poverty. Community-based care, which stretches from patient homes and communities—where chronic infectious diseases are often best managed—to modern health centers and hospitals, offers such a model, providing access to proximate HIV care and minimizing structural barriers to retention. We first review the recent literature on community-based ART programs in low- and low-to-middle-income country settings and document two key principles that guide effective programs: decentralization of ART services and long-term retention of patients in care. We then discuss the evolution of the community-based programs of Partners In Health (PIH), a nongovernmental organization committed to providing a preferential option for the poor in health care, in Haiti and several countries in sub-Saharan Africa, Latin America, Russia and Kazakhstan. As one of the first organizations to treat patients with HIV in low-income settings and a pioneer of the community-based approach to ART delivery, PIH has achieved both decentralization and excellent retention through the application of an accompaniment model that engages community health workers in the delivery of medicines, the provision of social support and education, and the linkage between communities and clinics. We conclude by showing how PIH has leveraged its HIV care delivery platforms to simultaneously strengthen health systems and address the broader burden of disease in the places in which it works.

A catastrophe in the 21st century: the public health situation in South Africa following HIV/AIDS

During the early 1900s, African populations in South Africa were subject to very widespread infections which especially affected the young. This resulted in high mortality rates and a low life expectancy of 20-25 years. By the mid-century, mortality rates from infections had decreased considerably. Moreover, the occurrences of non-communicable diseases, even in urban areas, remained very low. In the 1970s, the proportion of Africans aged 50 or over that reached 70 years was 38.5%, higher than that in the juxtaposed white population, which was 35.5%. And by 1985, the life expectancy of Africans reached 61 years for males and 63 years for females, probably the highest in sub-Saharan African populations. Since then, however, the African continent has been devastated by the AIDS epidemic. In 2001, HIV was responsible for the death of a third of the African population in South Africa, but even higher proportions prevailed in Botswana and in Tanzania. The calamitous advent of the HIV infection has caused major falls in life expectancy, in the case of Africans in South Africa reducing this to just 43 years. With little hope of meaningful changes occurring in sexual habits or of an early vaccine becoming available, the infectionís high morbidity/mortality burden is likely to continue.

"They are looking just the same": Antiretroviral treatment as social danger in rural Malawi

Research on the social impact of ART pivots on questions of individual adherence and community acceptability of treatment programmes. In this paper we examine unexpected and unintended consequences of the scale-up of treatment in rural Malawi, using a unique dataset of more than 150 observational journals from three sites, spanning 2010 to 2013, focusing on men's everyday conversations. Through thematic content analysis, we explore the emerging perception that the widespread availability of ART constitutes a form of social danger, as treatment makes it difficult to tell who does or does not have AIDS. This ambiguity introduced through ART is interpreted as putting individuals at risk, because it is no longer possible to tell who might be infected - indeed, the sick now look healthier and "plumper" than the well. This ambivalence over the social impact of ART co-exists with individual demand for and appreciation of the benefits of treatment.

Assistive technology access and service delivery in resource-limited environments: introduction to a special issue of Disability and Rehabilitation: Assistive Technology

This special issue addresses access to and service delivery of assistive technology (AT) in resource-limited environments (RLEs). Access to AT is complicated not simply by limited funds to purchase AT, but by larger ecosystem weaknesses in RLEs related to legislation and policy, supply, distribution, human resources, consumer demand and accessible design. We present eight diverse articles that address various aspects of the AT ecosystem. These articles represent a wide range of AT, many different countries and different research methods. Our goal is to highlight a topic that has received scant research investigation and limited investment in international development efforts, and offer an insight into how different countries and programs are promoting access to AT. We encourage researchers, funders and non-profit organizations to invest additional effort and resources in this area.

Making a difference in adult-child relationships: evidence from an adult-child communication intervention in Botswana, Malawi, and Mozambique

Girls are vulnerable to HIV in part because the social systems in which they live have failed to protect them. This study evaluates a program aimed at strengthening adult-child relationships to reduce girls' vulnerability to HIV in Botswana, Malawi, and Mozambique. In addition to an extensive process evaluation, a cross-sectional post-intervention survey was conducted in the three countries. The total sample size was 1418 adolescent girls (ages 11-18). Bivariate and multilevel, multivariate analyses were conducted to assess the association between adult program exposure and adult-child relationship improvement. In Botswana, Malawi, and Mozambique, girls whose mothers and fathers participated in the program, as compared to those whose parents did not participate in the program, were significantly more likely to report that their relationships with their parents had improved. Research has shown the important role that adults can play in the mitigation of youth risk taking behavior.

Taming the Brain Drain: A Challenge for Public Health Systems in Southern Africa

In southern Africa, rapid out-migration of health professionals is compounding the problems of health systems already faced with budget constraints and the impacts of HIV/AIDS. These negative effects are unlikely to be offset by remittances from abroad. The same dynamics that affect the international migration of health professionals operate within nations, for instance as they move from public to private systems. "Push," "pull," and "stick" factors contribute to the migration. Some Canadian provinces have emerged as key destinations. The authors outline a program of research on how Canada and the international community might address the negative impacts of the brain drain. Policy options have been identified, but implementation may be complicated by provisions of GATS, fundamental economic disparities, and domestic political priorities.

The role of traditional healers in community-based HIV care in rural Lesotho

Traditional healers provide a substantial proportion of health care in resource-poor settings, including countries with high burdens of HIV in sub-Saharan Africa. Traditional healers have played many roles in HIV care, but some biomedical providers view them as obstacles in providing HIV treatment. This is a qualitative study exploring the roles played by traditional healers in a community-based program rolling out antiretroviral therapy (ART) in two rural communities in Lesotho. Seventeen traditional healers took part in interviews focus groups, and participant observation sessions over a 2 years period. Data showed they provided a wide range of HIV services prior to the ART rollout. Baseline knowledge regarding HIV was high, but healers reported mixed emotions about the planned ART rollout. Joint meetings were held between biomedical providers and traditional healers, and a collaborative model of care resulted. Traditional healers took on a variety of roles in the ART rollout, including HIV prevention activities, HIV testing, monitoring patients, and participating in joint learning sessions. All of the traditional healers underwent HIV testing and 7/17 (41.2%) tested positive for the disease, of whom four were eligible for and enrolled in ART. Healers expressed an appreciation for the collaboration with biomedical providers and being paid for their referrals. However, some expressed concern about the biomedical providers' lack of understanding of HIV in the local context. This research shows that traditional healers can provide a variety of community-based HIV services and are not obstacles for advancing care in the communities they serve.

[HIV, only the tip of the iceberg in Burundi]

In Burundi, like in many other resource-limited settings, HIV sector is mainly financed by international funding (IF). Through this way, HIV-infected people may have access to care, antiretroviral therapy and opportunistic infections medications free of charge. In addition, IF can also contribute to major the HIV-health care professionals (HCP) salary. Indeed, because of dramatically low incomes, public sector HCP move frequently through the country or migrate towards foreign countries, attracted by higher salaries and better working environment. To date, relatively large funding became available in some settings for HIV-care. Through illustrative examples from the field in Burundi, we are discussing why consequences are, in many cases, a worsening of inequities and disorganization of the public health sector, instead of leading this latter one towards a global improvement. Furthermore, we are suggesting that HIV-programs per se are not sufficient to provide a proper management of the epidemic at a global scale.

State of the ART: clinical efficacy and improved quality of life in the public antiretroviral therapy program, Free State province, South Africa

The South African public-sector antiretroviral treatment (ART) program has yielded promising early results. To extend and reinforce these preliminary findings, we undertook a detailed assessment of the clinical efficacy and outcomes over two years of ART. The primary objective was to assess the clinical outcomes and adverse effects of two years of ART, while identifying the possible effects of baseline health and patient characteristics. A secondary objective was to address the interplay between positive and negative outcomes (clinical benefits versus adverse effects) in terms of the patients' physical and emotional quality of life (QoL). Clinical outcome, baseline characteristics, health status, and physical and emotional QoL scores were determined from clinical files and interviews with 268 patients enrolled in the Free State ART program at three time points (6, 12, and 24 months of ART). Age, sex, education, and baseline health (CD4 cell count and viral load) were all independently associated with the ART outcome in the early stages of treatment, but their impact diminished as the treatment progressed. The number of patients classified as treatment successes increased over the first two years of ART, whereas the proportion of patients experiencing adverse effects diminished. Importantly, our findings show that ART had strong and stable positive effects on physical and emotional QoL. These favorable results demonstrate that a well-managed public-sector ART program can be very successful within a high-HIV-prevalence resource-limited setting. This finding emphasizes the need to adopt treatment scale-up as a key policy priority, while at the same time ensuring that the highest standards of healthcare provision are maintained. Healthcare services should also target vulnerable groups (males, less-educated patients, those with low baseline CD4 cell counts, and high baseline viral loads) who are most likely to experience treatment failure.

Surveying health professionals' satisfaction with the Integrated Management of Adult and Adolescent Illness Chronic HIV Care training programme: the Papua New Guinea experience

This study reports findings from a survey of Papua New Guinean registered nurse who completed the Integrated Management of Adult and Adolescent Illness (IMAI) Chronic HIV Care training conducted between November 2005 and December 2006. The survey conducted is one component of a mixed method evaluation of the IMAI program in Papua New Guinea. Data from the questionnaires were entered into version 16 of the Statistical Package for the Social Sciences (SPSS) software program. The responses on the effect of the IMAI training program had on various aspects of how care is provided, learning needs and other program outcomes were analysed with a chi-square test being applied to detect any difference in the response given by the different demographic subgroups in terms of gender, age, care status, current employer and past educational attainment. The survey revealed that all thirty-five respondents have a positive impression of the IMAI program and expressed the view that the IMAI program had a positive effect on various aspects of patient care and their learning and experience. Overall, the survey identified that registered nurses who participated in the IMAI Chronic HIV Care training program perceive the program to be beneficial for improving the way HIV care is provided.

"Just like fever": a qualitative study on the impact of antiretroviral provision on the normalisation of HIV in rural Tanzania and its implications for prevention

BACKGROUND

Once effective therapy for a previously untreatable condition is made available, a normalisation of the disease often occurs. As part of a broader initiative to monitor the implementation of the national antiretroviral therapy (ART) programme, this qualitative study investigated the impact of ART availability on perceptions of HIV in a rural ward of North Tanzania and its implications for prevention.

METHODS

A mix of qualitative methods was used including semi-structured interviews with 53 ART clinic clients and service providers. Four group activities were conducted with persons living with HIV. Data were analyzed using the qualitative software package NVIVO-7.

RESULTS

People on ART often reported feeling increasingly comfortable with their status reflecting a certain "normalization" of the disease. This was attributed to seeing other people affected by HIV, regaining physical health, returning to productive activities and receiving emotional support from health service providers. Overcoming internalized feelings of shame facilitated disclosure of HIV status, helped to sustain treatment, and stimulated VCT uptake. However "blaming" stigma - where people living with HIV were considered responsible for acquiring a "moral disease" - persisted in the community and anticipating it was a key barrier to disclosure and VCT uptake. Attributing HIV symptoms to witchcraft seemed an effective mechanism to transfer "blame" from the family unit to an external force but could lead to treatment interruption.

CONCLUSION

As long as an HIV diagnosis continues to have moral connotations, a de-stigmatisation of HIV paralleling that occurring with diseases like cancer is unlikely to occur. Maximizing synergies between HIV treatment and prevention requires an enabling environment for HIV status disclosure, treatment continuation, and safer sexual behaviours. Local leaders should be informed and sensitised and communities mobilised to address the blame-dimension of HIV stigma.

Scaling up stigma? The effects of antiretroviral roll-out on stigma and HIV testing. Early evidence from rural Tanzania

Objective:

To investigate the interplay between antiretroviral therapy (ART) scale-up, different types of stigma and Voluntary Counselling and Testing (VCT) uptake 2 years after the introduction of free ART in a rural ward of Tanzania.

Methods:

Qualitative study using in-depth interviews and group activities with a purposive sample of 91 community leaders, 77 ART clients and 16 health providers. Data were analysed for recurrent themes using NVIVO-7 software.

Results:

The complex interplay between ART, stigma and VCT in this setting is characterised by two powerful but opposing dynamics. The availability of effective treatment has transformed HIV into a manageable condition which is contributing to a reduction in self-stigma and is stimulating VCT uptake. However, this is counterbalanced by the persistence of blaming attitudes and emergence of new sources of stigma associated with ART provision. The general perception among community leaders was that as ART users regained health, they increasingly engaged in sexual relations and “spread the disease.” Fears were exacerbated because they were perceived to be very mobile and difficult to identify physically. Some leaders suggested giving ART recipients drugs “for impotence,” marking them “with a sign” and putting them “in isolation camps.” In this context, traditional beliefs about disease aetiology provided a less stigmatised explanation for HIV symptoms contributing to a situation of collective denial.

Conclusion:

Where anticipated stigma prevails, provision of antiretroviral drugs alone is unlikely to have sufficient impact on VCT uptake. Achieving widespread public health benefits of ART roll-out requires community-level interventions to ensure local acceptability of antiretroviral drugs.

[Late diagnosis of HIV infection in the Fann, Dakar clinic of infectious diseases: testing circumstances, therapeutic course of patients, and determining factors]

BACKGROUND AND METHODOLOGY

The delay in the diagnosis of HIV infection is a major obstacle to optimal care for this disease. To deal with this problem, we conducted this study among newly diagnosed HIV patients hospitalized in the Fann University Hospital Infectious Diseases Clinic in Dakar. The epidemiological, clinical, biological and outcome aspects are described and patient history reviewed. A qualitative socio-anthropological study was made to understand and describe the logic of the decision processes in the patient's search for treatment.

RESULTS

One hundred patients were included, with a mean age of 39.5+/-11.1 years and a sex-ratio: 1.08. The transmission was mainly heterosexual (90%), and chronic diarrhea (64%) and/or chronic cough (66%) were the principal symptoms leading to diagnosis. The mean delay before diagnosis was 5+/-4.27 months. The major opportunistic diseases were tuberculosis (44 cases) and infectious diarrhea (23 cases). Most patients were diagnosed at the AIDS stage (97%) and the death rate was 30% among hospitalized patients after admission. Sixty-eight percent of patients had consulted at least three times, generally a "traditional practitioner", at first and 43% had been hospitalized at least once. The qualitative investigation revealed that the "representation" or the "feeling of severity" of the disease were the principal justifications for consulting the "traditional practitioner" or the physician, respectively.

CONCLUSION

Better information for health workers and global population is necessary for an earlier diagnosis of HIV infection in Dakar.

Quality of STIs and HIV/AIDS care as perceived by biomedical and traditional health care providers in Zambia: are there common grounds for collaboration?

OBJECTIVE

To explore biomedical and traditional health care providers' (BHPs and THPs, respectively) perceptions of good quality of care and opinions on weaknesses in the services they provide to patients with STIs and HIV/AIDS.

METHODS

Using data from a cross-sectional survey, we post-coded two open-ended questions related to THPs' and BHPs' perceptions on good quality of care and on provided care. The post-coding was done following Donabedian's framework of assessment of quality of care, and allowed transformation of qualitative data into quantitative. The analysis is based on comparison of frequencies, proportions and subsequent chi-square tests and odds ratios.

SETTING

Ndola and Kabwe, Zambia Main measures: Proportions of responses from 152 BHPs and 144 THPs.

RESULTS

Substantial proportions of providers from both sectors perceived drugs availability (63% of BHPs and 70% of THPs) and welcoming attitude (73% of BHPs and 64% of THPs) as important components of good quality care. BHPs were more likely than THPs to mention proper examination, medical management (provider's technical ability) and explanation of causes and prognosis of the disease as important. More THPs than BHPs cited short waiting time and cost of care. A majority of BHPs (87%) and of THPs (80%) reported deficiencies in their STIs and HIV/AIDS-related services. Both groups regarded training of providers and nutritional support and health education to patients as lacking. None of the THPs alluded to voluntary counselling and testing (VCT) or supportive/home-based care as aspects needing improvement.

CONCLUSION

Drugs availability and welcoming attitude were two aspects of quality highly valued by THPs and BHPs. Future collaborative interventions need to respond to aspects of joint concern including training of providers, nutritional support and health education to patients. Further, there is an imperative of expanding and adapting VCT, home-based care and palliative care to THPs for better care of STIs and HIV/AIDS.

Caring for the caregivers: models of HIV/AIDS care and treatment provision for health care workers in Southern Africa

Rollout of antiretroviral therapy (ART) has been successfully initiated in many countries, but concerns have been raised about the ability to meet treatment needs in areas where there is a high prevalence of human immunodeficiency virus (HIV) infection/acquired immunodeficiency syndrome (AIDS) and where there are severe deficits in human-resource capacity. Many health care workers in resource-poor areas are experiencing burnout, struggling with external and internal stigma, failing to access HIV testing and treatment early, and subsequently becoming sick and dying of AIDS. Although the human-resource deficit is a well-recognized problem, little has been written about the programs that have been established to provide treatment for HIV-infected health care workers. In the present article, we describe staff care programs at McCord Hospital in Durban, South Africa; Mseleni Hospital in northern KwaZulu-Natal, South Africa; and the Tshedisa Institute in Gaborone, Botswana. These programs provide convenient, confidential, and holistic care for HIV-infected health care workers and health care workers affected by caring for HIV-infected patients. All 3 programs have noted that, among health care workers, there is increasing acceptance of counseling, testing, and treatment. We propose that there is an urgent need for the development of HIV/AIDS care and treatment programs for health care workers that remove barriers to access, provide confidentiality in testing, are conveniently located, and are integrated with tuberculosis programs and other treatment services.

25 years of HIV/AIDS science: reaching the poor with research advances

Last year marked the 25th anniversary of the recognition of what we now call AIDS. The AIDS pandemic has claimed more than 25 million lives, the majority of them in the developing world, and has exacerbated poverty and slowed human development. Although much has been accomplished in HIV/AIDS research, much remains to be done, especially regarding delivery of HIV/AIDS therapies and care and prevention interventions to the poorest countries that need them most.

Provider-initiated HIV testing in rural Haiti: low rate of missed opportunities for diagnosis of HIV in a primary care clinic

As HIV treatment is scaled-up in resource-poor settings, the timely identification of persons with HIV infection remains an important challenge. Most people with HIV are unaware of their status, and those who are often present late in the course of their illness. Free-standing voluntary counseling and testing sites often have poor uptake of testing. We aimed to evaluate a 'provider-initiated' HIV testing strategy in a primary care clinic in rural resource-poor Haiti by reviewing the number of visits made to clinic before an HIV test was performed in those who were ultimately found to have HIV infection. In collaboration with the Haitian Ministry of Health, a non-governmental organization (Partners In Health) scaled up HIV care in central Haiti by reinforcing primary care clinics, instituting provider-initiated HIV testing and by providing HIV treatment in the context of primary medical care, free of charge to patients. Among a cohort of people with HIV infection, we assessed retrospectively for delays in or 'missed opportunities' for diagnosis of HIV by the providers in one clinic. Of the first 117 patients diagnosed with HIV in one clinic, 100 (85%) were diagnosed at the first medical encounter. Median delay in diagnosis for the remaining 17 was only 62 days (IQR 19 - 122; range 1 - 272). There was no statistical difference in CD4 cell count between those with and without a delay. 3787 HIV tests were performed in the period reviewed. Provider-initiated testing was associated with high volume uptake of HIV testing and minimal delay between first medical encounter and diagnosis of HIV infection. In scale up of HIV care, provider-initiated HIV testing at primary care clinics can be a successful strategy to identify patients with HIV infection.

Information systems for patient follow-up and chronic management of HIV and tuberculosis: a life-saving technology in resource-poor areas

Background

The scale-up of treatment for HIV and multidrug-resistant tuberculosis (MDR-TB) in developing countries requires a long-term relationship with the patient, accurate and accessible records of each patient’s history, and methods to track his/her progress. Recent studies have shown up to 24% loss to follow-up of HIV patients in Africa during treatment and many patients not being started on treatment at all. Some programs for prevention of maternal–child transmission have more than 80% loss to follow-up of babies born to HIV-positive mothers. These patients are at great risk of dying or developing drug resistance if their antiretroviral therapy is interrupted. Similar problems have been found in the scale-up of MDR-TB treatment.

Objectives

The aim of the study was to assess the role of medical information systems in tracking patients with HIV or MDR-TB, ensuring they are promptly started on high quality care, and reducing loss to follow-up.

Methods

A literature search was conducted starting from a previous review and using Medline and Google Scholar. Due to the nature of this work and the relative lack of published articles to date, the authors also relied on personal knowledge and experience of systems in use and their own assessments of systems.

Results

Functionality for tracking patients and detecting those lost to follow-up is described in six HIV and MDR-TB treatment projects in Africa and Latin America. Preliminary data show benefits in tracking patients who have not been prescribed appropriate drugs, those who fail to return for follow-up, and those who do not have medications picked up for them by health care workers. There were also benefits seen in providing access to key laboratory data and in using this data to improve the timeliness and quality of care. Follow-up was typically achieved by a combination of reports from information systems along with teams of community health care workers. New technologies such as low-cost satellite Internet access, personal digital assistants, and cell phones are helping to expand the reach of these systems.

Conclusions

Effective information systems in developing countries are a recent innovation but will need to play an increasing role in supporting and monitoring HIV and MDR-TB projects as they scale up from thousands to hundreds of thousands of patients. A particular focus should be placed on tracking patients from initial diagnosis to initiation of effective treatment and then monitoring them for treatment breaks or loss to follow-up. More quantitative evaluations need to be performed on the impact of electronic information systems on tracking patients.

Knowledge, attitude, and practice (KAP) of HIV prevention and HIV infection risks among Congolese refugees in Tanzania

Little is known about HIV infection risks and risk behaviours of refugees living in resource-scarce post-emergency phase camps in Africa. Our study at Nyarugusu Camp in Tanzania, covering systematically selected refugees (n = 1140) and refugees living with HIV/AIDS (PLWHA) (n = 182), revealed that the level of HIV risk of systematically selected refugees increased after displacement, particularly regarding the number having transactional sex for money or gifts, while radio broadcast messages are perceived to promote a base of risk awareness within the refugee community. While condoms are yet to be widely used in the camp, some refugees having transactional sex tended to undertake their own health initiatives such as using a condom, under the influence of peer refugee health workers, particularly health information team (HIT) members. Nevertheless, PLWHA were less faithful to one partner and had more non-regular sexual partners than the HIV-negative group. Our study revealed that community-based outreach by refugee health workers is conducive to risk behaviour prevention in the post-emergency camp setting. It is recommended to increase the optimal use of "radio broadcast messages" and "HIT," which can act as agents to reach out to wider populations, and to strengthen the focus on safer sex education for PLWHA; the aim being to achieve dual risk reduction for both refugees living with and without HIV/AIDS.

Human immunodeficiency virus (HIV) in developing countries

The human immunodeficiency virus (HIV) is causing the most destructive epidemic of recent times, having been responsible for the deaths of more than 25 million people since it was first recognised in 1981. This global epidemic remains out of control, with reported figures for 2005 of 40 million people infected with HIV. During 2005 there were 4.9 million new infections, showing that transmission is not being prevented, and there were 3.1 million deaths from the acquired immunodeficiency syndrome (AIDS), reflecting the lack of a definitive cure and the limited access to suppressive antiretroviral treatment in the developing countries that are most severely affected. The current state of the epidemic and the response to date are here reviewed. Present and future opportunities for prevention, treatment and surveillance are discussed, with particular reference to progress towards an HIV vaccine, the expansion of the provision of highly active antiretroviral therapy, and the need to focus control programmes on HIV as an infectious disease, rather than as a development issue.

Resource allocation within the National AIDS Control Program of Pakistan: a qualitative assessment of decision maker's opinions

BACKGROUND

Limited resources, whether public or private, demand prioritisation among competing needs to maximise productivity. With a substantial increase in the number of reported HIV cases, little work has been done to understand how resources have been distributed and what factors may have influenced allocation within the newly introduced Enhanced National AIDS Control Program of Pakistan. The objective of this study was to identify perceptions of decision makers about the process of resource allocation within Pakistan's Enhanced National AIDS Control Program.

METHODS

A qualitative study was undertaken and in-depth interviews of decision makers at provincial and federal levels responsible to allocate resources within the program were conducted.

RESULTS

HIV was not considered a priority issue by all study participants and external funding for the program was thought to have been accepted because of poor foreign currency reserves and donor agency influence rather than local need. Political influences from the federal government and donor agencies were thought to manipulate distribution of funds within the program. These influences were thought to occur despite the existence of a well-laid out procedure to determine allocation of public resources. Lack of collaboration among departments involved in decision making, a pervasive lack of technical expertise, paucity of information and an atmosphere of ad hoc decision making were thought to reduce resistance to external pressures.

CONCLUSION

Development of a unified program vision through a consultative process and advocacy is necessary to understand goals to be achieved, to enhance program ownership and develop consensus about how money and effort should be directed. Enhancing public sector expertise in planning and budgeting is essential not just for the program, but also to reduce reliance on external agencies for technical support. Strengthening available databases for effective decision making is required to make financial allocations based on real, rather than perceived needs. With a large part of HIV program funding dedicated to public-private partnerships, it becomes imperative to develop public sector capacity to administer contracts, coordinate and monitor activities of the non-governmental sector.

Modelling the impact of antiretroviral use in resource-poor settings

BACKGROUND

The anticipated scale-up of antiretroviral therapy (ART) in high-prevalence, resource-constrained settings requires operational research to guide policy on the design of treatment programmes. Mathematical models can explore the potential impacts of various treatment strategies, including timing of treatment initiation and provision of laboratory monitoring facilities, to complement evidence from pilot programmes.

METHODS AND FINDINGS

A deterministic model of HIV transmission incorporating ART and stratifying infection progression into stages was constructed. The impact of ART was evaluated for various scenarios and treatment strategies, with different levels of coverage, patient eligibility, and other parameter values. These strategies included the provision of laboratory facilities that perform CD4 counts and viral load testing, and the timing of the stage of infection at which treatment is initiated. In our analysis, unlimited ART provision initiated at late-stage infection (AIDS) increased prevalence of HIV infection. The effect of additionally treating pre-AIDS patients depended on the behaviour change of treated patients. Different coverage levels for ART do not affect benefits such as life-years gained per person-year of treatment and have minimal effect on infections averted when treating AIDS patients only. Scaling up treatment of pre-AIDS patients resulted in more infections being averted per person-year of treatment, but the absolute number of infections averted remained small. As coverage increased in the models, the emergence and risk of spread of drug resistance increased. Withdrawal of failing treatment (clinical resurgence of symptoms), immunologic (CD4 count decline), or virologic failure (viral rebound) increased the number of infected individuals who could benefit from ART, but effectiveness per person is compromised. Only withdrawal at a very early stage of treatment failure, soon after viral rebound, would have a substantial impact on emergence of drug resistance.

CONCLUSIONS

Our analysis found that ART cannot be seen as a direct transmission prevention measure, regardless of the degree of coverage. Counselling of patients to promote safe sexual practices is essential and must aim to effect long-term change. The chief aims of an ART programme, such as maximised number of patients treated or optimised treatment per patient, will determine which treatment strategy is most effective.

The economics of HIV/AIDS in low-income countries: the case for prevention

There are two approaches to reducing the burden of sickness and death associated with the human immunodeficiency virus (HIV), which leads to acquired immunodeficiency syndrome (AIDS): treatment and prevention. Despite large international aid flows for HIV/AIDS, the needs for prevention and treatment in low- and middle-income countries outstrip the resources available. Thus, it becomes necessary to set priorities. With limited resources, should the focus of efforts to combat HIV/AIDS be on prevention or treatment? I discuss the range of prevention and treatment alternatives and examine their cost effectiveness. I consider various arguments that have been raised against the use of cost-effectiveness analysis in setting public policy priorities for the response to HIV/AIDS in developing countries. I conclude that promoting AIDS treatment using antiretrovirals in resource-constrained countries comes at a huge cost in terms of avoidable deaths that could be prevented through interventions that would substantially lower the scale of the epidemic.

Cost effectiveness analysis of strategies to combat HIV/AIDS in developing countries

OBJECTIVE

To assess the costs and health effects of a range of interventions for preventing the spread of HIV and for treating people with HIV/AIDS in the context of the millennium development goal for combating HIV/AIDS.

DESIGN

Cost effectiveness analysis based on an epidemiological model.

SETTING

Analyses undertaken for two regions classified using the WHO epidemiological grouping-Afr-E, countries in sub-Saharan Africa with very high adult and high child mortality, and Sear-D, countries in South East Asia with high adult and high child mortality.

DATA SOURCES

Biological and behavioural parameters from clinical and observational studies and population based surveys. Intervention effects and resource inputs based on published reports, expert opinion, and the WHO-CHOICE database.

MAIN OUTCOME MEASURES

Costs per disability adjusted life year (DALY) averted in 2000 international dollars (Int dollars).

RESULTS

In both regions interventions focused on mass media, education and treatment of sexually transmitted infections for female sex workers, and treatment of sexually transmitted infections in the general population cost < Int150 dollars per DALY averted. Voluntary counselling and testing costs < Int350 dollars per DALY averted in both regions, while prevention of mother to child transmission costs < Int50 dollars per DALY averted in Afr-E but around Int850 dollars per DALY in Sear-D. School based education strategies and various antiretroviral treatment strategies cost between Int500 dollars and Int5000 dollars per DALY averted.

CONCLUSIONS

Reducing HIV transmission could be done most efficiently through mass media campaigns, interventions for sex workers and treatment of sexually transmitted infections where resources are most scarce. However, prevention of mother to child transmission, voluntary counselling and testing, and school based education would yield further health gains at higher budget levels and would be regarded as cost effective or highly cost effective based on standard international benchmarks. Antiretroviral therapy is at least as cost effective in improving population health as some of these interventions.

Efficacy of Antiretroviral Therapy Programs in Resource‐Poor Settings: A Meta‐analysis of the Published Literature

BACKGROUND

Despite the advent of effective combination antiretroviral drug therapy (ART) for the treatment of human immunodeficiency virus (HIV) infection, many doubt the feasibility of ART treatment programs in resource-poor settings. We performed a meta-analysis of the efficacy of ART programs in the developing world. We searched the Medline database with the index terms "HIV," "antiretroviral therapy," "CD4 count," "viral load," "experience," and "outcomes." A total of 201 abstracts were reviewed, and 25 articles were selected for detailed review. Ten observational studies with details on patient outcomes were ultimately included in the analysis.

METHODS

Three readers independently extracted data from the articles. The details recorded included patient demographic characteristics, baseline CD4 cell counts, baseline HIV RNA viral loads, ART histories, outcomes, and timing of the outcome measure.

RESULTS

The proportion of subjects with an undetectable HIV viral load provided the measure of treatment efficacy. A random-effects model weighted the proportion of patients with undetectable viral load at various time points during ART. The proportion was 0.697 (95% CI, 0.582-0.812) at month 6 and 0.573 (95% CI, 0.432-0.715) at month 12 of ART. The provision of medications free of charge to the patient was associated with a 29%-31% higher probability of having an undetectable viral load at months 6 and 12 than was the requirement that patients pay part or all of the cost of therapy.

CONCLUSIONS

ART treatment programs in resource-poor settings have efficacy rates similar to those reported for developed countries. The provision of medications free of charge to the patient is associated with a significantly increased probability of virologic suppression at months 6 and 12 of ART.

Brazil and access to HIV/AIDS drugs: a question of human rights and public health

I explore the relationship between public health and human rights by examining the Brazilian government's policy of free and universal access to anti-retroviral medicines for people with HIV/AIDS. The Brazilian government's management of the HIV/AIDS epidemic arose from initiatives in both civil society and the governmental sector following the democratization of the country. The dismantling of authoritarian rule in Brazil was accompanied by a strong orientation toward human rights, which formed the sociopolitical framework of Brazil's response to the HIV/AIDS epidemic. Even if the Brazilian experience cannot be easily transferred to other countries, the model of the Brazilian government's response may nonetheless serve as inspiration for finding appropriate and lifesaving solutions in other national contexts.

Barriers to better care for people with AIDS in developing countries

WHO's “3 by 5” initiative to increase access to antiretroviral drugs to people with AIDS in developing countries is highly ambitious. Some of the biggest obstacles relate to delivering care

Steps on the critical path: arresting HIV/AIDS in developing countries

The director of the United States Centers for Disease Control and Prevention gives a personal view of how the world should tackle the HIV pandemic

HIV/AIDS among conflict-affected and displaced populations: dispelling myths and taking action

Conflict, displacement, food insecurity and poverty make affected populations more vulnerable to HIV transmission. However, the common assumption that this vulnerability necessarily translates into more HIV infections and consequently fuels the HIV/AIDS epidemic is not supported by data. Whether or not conflict and displacement affect HIV transmission depends upon numerous competing and interacting factors. This paper explores and explains the epidemiology of HIV/AIDS in conflict and addresses the unique characteristics that must be addressed when planning and implementing HIV/AIDS interventions among populations affected by conflict as compared with those in resource-poor settings. These include targeting at-risk groups, protection, programming strategies, coordination and integration and monitoring and evaluation. Areas for future HIV/AIDS operational research in conflict are discussed.

Scaling-up HIV treatment programmes in resource-limited settings: the rural Haiti experience

OBJECTIVE

To scale-up a successful HIV/AIDS treatment project and provide comprehensive care to an entire Département du Centre (population 550 000) in rural Haiti, thereby demonstrating that community-based treatment of HIV is feasible and highly effective in resource-limited settings, and serving as a successful model for others to replicate.

PARTICIPANTS

In the Département du Centre of rural Haiti comprehensive HIV and tuberculosis treatment is provided free of charge to anyone who presents for care. All those who meet clinical enrolment criteria are treated with highly active antiretroviral therapy (HAART).

INTERVENTION

HAART was provided in the context of a comprehensive programme of HIV, tuberculosis (TB), sexually transmitted disease (STD) of the project, treatment and prevention, and women's health services at four sites in the first year. At each site, the medical facility was renovated, additional staff were hired as needed, and a network of accompagnateurs (community health workers) was established throughout the surrounding villages to serve as a link with the community, and to provide directly observed treatment (DOT).

RESULTS

In the first year of programme scale-up, over 8000 patients were followed for HIV, and over 1050 were treated with DOT HAART. Adherence to HAART was very high, and clinical outcomes were excellent: all patients responded with weight gain and improved functional capacity, and fewer than 5% required medication changes due to side effects. Viral load was tested among a subset of patients showing that 86% had undetectable viral loads.

CONCLUSION

Community-based care of AIDS has been highly effective in rural Haiti. With more international financial support for HIV/AIDS treatment in resource-limited settings, there should be no barriers to access to life-saving HAART for those who need it most.

From Directly Observed Therapy to Accompagnateurs: Enhancing AIDS Treatment Outcomes in Haiti and in Boston

Like tuberculosis, human immunodeficiency virus (HIV) disease is associated with poverty and social inequalities, conditions that hamper the delivery of care. Like tuberculosis, treatment of HIV infection requires multidrug regimens, and the causative agent acquires drug resistance, which can be transmitted to others. A pilot project in rural Haiti introduced DOT-HAART (directly observed therapy with highly active antiretroviral therapy) for the care of patients with advanced acquired immune deficiency syndrome. A similar DOT-HAART effort was launched in Boston for patients with drug-resistant HIV disease who had experienced failure of unsupervised therapy. In both settings, community health promoters or accompagnateurs provide more than DOT: they offer psychosocial support and link patients to clinical staff and available resources. DOT-HAART in these 2 settings presents both challenges and opportunities. These models of care can be applied to other poverty-stricken populations in resource-poor settings.

Scaling-up treatment for HIV/AIDS: lessons learned from multidrug-resistant tuberculosis

The UN has launched an initiative to place 3 million people in developing countries on antiretroviral AIDS treatment by end 2005 (the 3 by 5 target). Lessons for HIV/AIDS treatment scale-up emerge from recent experience with multidrug-resistant tuberculosis. Expansion of treatment for multidrug-resistant tuberculosis through the multipartner mechanism known as the Green Light Committee (GLC) has enabled gains in areas relevant to 3 by 5, including policy development, drug procurement, rational use of drugs, and the strengthening of health systems. The successes of the GLC and the obstacles it has encountered provide insights for building sustainable HIV/AIDS treatment programmes.