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PubMed2000

Ethics in South Africa: new challenges.

One of the reasons why ethics is so much spoken about nowadays is that the moral certainties of previous times no longer exist. Recent events in South Africa have called into question many of the values and principles formerly adhered to. Formerly, we had confidence in the moral consensus that was shared by our families, religious organizations, educational institutions, professional associations and judicial system. Nowadays we have pluralism, and we live in a society with many competing moralities. Whereas in traditional societies, there is considerable agreement on values, in pluralistic societies, such as South Africa, individuals are subject to a clash of values and have the difficult task of deciding which should prevail. Euthanasia and assistance in suicide are currently hot issues in South Africa. Ethical conduct of medical practitioners dealing with cases of AIDS is an ongoing task. New issues like Telemedicine and the ethics involved therein, are a concept in South Africa and will receive much attention in this year.

Attitude to Health↗
PubMed2003

Combination therapy for malaria in Africa: hype or hope?

The development of resistance to drugs poses one of the greatest threats to malaria control. In Africa, the efficacy of readily affordable antimalarial drugs is declining rapidly, while highly efficacious drugs tend to be too expensive. Cost-effective strategies are needed to extend the useful life spans of antimalarial drugs. Observations in South-East Asia on combination therapy with artemisinin derivatives and mefloquine indicate that the development of resistance to both components is slowed down. This suggests the possibility of a solution to the problem of drug resistance in Africa, where, however, there are major obstacles in the way of deploying combination therapy effectively. The rates of transmission are relatively high, a large proportion of asymptomatic infection occurs in semi-immune persons, the use of drugs is frequently inappropriate and ill-informed, there is a general lack of laboratory diagnoses, and public health systems in sub-Saharan Africa are generally weak. Furthermore, the cost of combination therapy is comparatively high. We review combination therapy as used in South-East Asia and outline the problems that have to be overcome in order to adopt it successfully in sub-Saharan Africa.

Africa↗
PubMed2000

Malaria control in East Africa: the Kampala Conference and the Pare-Taveta Scheme: a meeting of common and high ground.

The 1950 Malaria Conference in Equatorial Africa, held in Kampala, Uganda, has been remembered primarily for its decision to control malaria '...by modern methods as soon as feasible, whatever the original degree of endemicity, and without awaiting the outcome of further experiments.' This decision was far from conclusive and, indeed, reflects only one side of the argument which brought two groups of malariologists into direct opposition on the wisdom of malaria control in equatorial Africa, using modern methods such as DDT. Through an examination of the unpublished verbatim transcript of the Kampala Conference, we are able to document the 'furious debates' which took place at Kampala in 1950. We highlight, in particular, the adamant concerns expressed by some of the delegates that intervention in areas of high malaria transmission might lead to a loss of naturally acquired immunity which, in turn, could give rise to a resurgence of malaria, should the control strategies fail to be sustained. As we show, this concern had been expressed by a number of malariologists working in East Africa in the first half of the twentieth century, but it was only with the advent of DDT, as a residual insecticide, that the implications of wide-spread control, in the absence of any knowledge of the long-term consequences, became a serious possibility. While the Kampala Conference gave the 'go ahead' to control malaria in Africa without awaiting the outcome of 'further experiments', a number of participants insisted that a field trial should be set up to evaluate the impact of malaria on areas of high transmission both before and after spraying: to this end, a field trial in Pare-Taveta was carried out in 1954-59. In this paper we look at the Kampala Conference for its scientific debates and the Pare-Taveta Scheme for its field applications. In the final part of the paper, we address a number of questions raised at Kampala which have, once more, become contentious issues, following the recent successful trials of ITBNs. We believe that an understanding of the historical foundations of these issues should provide an important component of the new WHO campaign to Roll Back Malaria.

Adult↗
PubMedDate not supplied

Reducing the rate of mother-to-child HIV transmission in Africa.

Currently there are about twenty four million HIV/AIDS (human immunodeficiency virus and acquired immunodeficiency syndrome) cases on the continent of Africa. Over the past two years, many health care professionals have been in a stage of denial concerning this problem. According to researchers attending the XIII International AIDS Conference held in Durban, South Africa, the world became aware that cost-effective strategies are needed desperately to stop the rapid spread of HIV/AIDS in Africa. Recent studies suggest that modest antiretroviral drug therapies for HIV-positive pregnant women can reduce one-half of the risk of HIV transmission to the unborn child. Challenges to the governments of Africa such as the high cost of drugs, lack of health care infrastructure and cultural barriers, priority to treat only pregnant women has been a difficult decision, while other infected persons with HIV are not treated.

Africa↗
PubMed1993

Africa: rapid population increase retards development.

The Organization of African Unity (OAU), the African Development Bank (ADB) and the UN Economic Commission for Africa (ECA) have criticized African governments for not taking the problem of unchecked population growth seriously enough. "Until recently most African governments did not view rapid population growth as a matter for concern," said the OAU assistant secretary-general for political affairs, Machivenyika Mapuranga, at a seminar on 'population and development'. The OAU estimates that an annual average population increase of 3.1% far outstrips Africa's economic growth, which in 1992 was less than 1%. Mapuranga acknowledged that cutting the population increase is an uphill struggle, especially among rural communities. African agriculture is largely labor intensive, sustained by smallholders, which encourages farmers to have more children. Like other wage earners, African farmers look to support from their family when they grow old and, for that reason, the number of children also counts. But with agricultural production growing at an average annual rate of 2.5%, self-sufficiency in food remains an elusive goal. Cities in sub-Saharan Africa are growing much faster than the overall rate of population increase of 3.1% per year. Between 1980 and 1988 the region's urban population increased at the rate of 6.9% a year. Urban areas now account for nearly 30% of the sub-Saharan Africa population, currently put at 680 million. By 2025, approximately 700 million people are expected to live in urban areas. Despite migration to towns, the rural population is expected to rise more than 68%, reaching over 590 million.

Africa↗
PubMed2000

Injuries as a public health problem in sub-Saharan Africa: epidemiology and prospects for control.

Injuries are common and on increase in most developing countries, including sub-Saharan Africa. A large proportion of the injuries are caused by road traffic accidents, falls, burns, assaults, bites, stings and other animal-related injuries, poisonings, drownings/near-drownings and suicide. Globally, injuries are responsible for about five per cent of the total mortality, and the overall global annual costs were estimated in the late 1980s at around 500 billion US dollars. The burden and pattern of injuries in Africa and other developing areas are poorly known and not well studied. The incidence is on the increase, partly due to rapid growth of motorised transport and to expansion of industrial production without adequate safety precautions. This is a review of data on various kinds of injuries in developing countries with a focus on sub-Saharan Africa. A computerised search of the relevant literature published between 1985 and 1998 was conducted and a manual search of journals publishing texts on health in low-income countries and in tropical environments was also done. A few studies on injury prevention policy and on research related to injury epidemiology and prevention have also been identified and included. It is concluded that in a relatively typical East African area with a total mortality rate of 1,300/100,000/year, injuries are likely to cause around 100 of these deaths. The corresponding total rate of significant injuries is estimated at 40,000/100,000/year with a breakdown as tabulated below. [table: see text] Although a few surveys and other investigations of injuries have been conducted over the years, injury epidemiology and control remain under-researched and relatively neglected subject areas. Much needs to be done. Collection and analysis of injury data need to be standardised, for example regarding age groups, gender disaggregation and severity. Injuries and accidents should be subdivided in at least road traffic injury, fall, burn, assault, poisoning, drowning, suicide, homicide and others, and details regarding time and place, victim and main cause should be noted. Morbidity survey field staff should be informed that injuries are part of the illness concept and that questions should be asked accordingly. Details regarding the circumstances surrounding different injuries must be known to those who develop preventive programmes. Injury is a public health problem affecting some people more than others. Our ordinary environment--the home, the work-site, the street or road--represents various kinds of risk, and some of these are difficult to eliminate. Not only do we have to accept much of our environment with its existing houses, equipment, vehicles, transport systems, energy supply, toxic substances etcetera, many also suffer from various inherited or acquired conditions that increase the risk. We therefore need to develop safer and more "forgiving" living environments where ordinary people can live and move around safely. Injury control activities may focus on different categories of injury. Road safety measures often include information and education campaigns, improved driver training, road design and maintenance, regular vehicle safety checks, separation of pedestrians from vehicle traffic, speed limits, safety belt, air-bag and helmet use, special training and control of public service vehicle drivers, bicycle lane separation, road lighting, reflectorised materials on clothing, review of the road traffic related legislation and law enforcement, and emergency medical services improvement. Domestic injuries can be prevented for example with window guards, child barriers at stairs, smoke detectors, clothes and furniture in less flammable materials, replacement of open stoves, stabilising of open lamps, fire-fighting equipment and practice, child-proof poison packaging and storage, safe disposal of toxic waste, home safety education of parents, and strict building code enforcement. Occupational injuries can largely be prevented if well adapted to the work environment. Research is required in several areas. An improved facility-based injury recording and reporting system needs to be developed and tested. There is need to combine data collection methods, such as interview surveys, hospital records, police records, focus group discussions and key informant interviews. The outcome of emergency medical care and of different forms of transport and referral needs to be determined. Different combinations of preventive interventions needs to be evaluated. This review is intended as guidance for those who need a broad overview of the subject of injury occurrence and prevention in Africa, for example in preparation for the development of injury control programmes or to help identify issues requiring further research in this field.

Adolescent↗
PubMed2003

Challenges in saving babies--avoidable factors, missed opportunities and substandard care in perinatal deaths in South Africa.

OBJECTIVE: To identify the most common avoidable factors, missed opportunities and substandard care in perinatal care in South Africa. SETTING: Seventy-three state hospitals throughout South Africa representing metropolitan areas, cities and towns, and rural areas. METHOD: Users of the Perinatal Problem Identification Programme (PPIP) amalgamated their data to provide descriptive information on the causes of perinatal death and the avoidable factors, missed opportunities and substandard care in South Africa. RESULTS: A total of 8,085 perinatal deaths among babies weighing 1,000 g or more were reported from 232,718 births at the PPIP sentinel sites. Avoidable factors, missed opportunities and substandard care were reported to be patient-related (between 31.5% and 47.5% of deaths), due to administrative problems (between 10.1% and 31.1% of deaths), and due to health worker-related problems (between 28.4% and 36.0% of deaths) in the metropolitan and rural areas respectively. Figures for cities and towns lay between these ranges. Deaths due to intrapartum asphyxia and birth trauma were thought to be clearly preventable within the health system in 63.1%, 34.4% and 35.7% of cases in the metropolitan areas, cities and towns, and rural areas respectively. Deaths due to hypertension and antepartum haemorrhage were thought to be clearly preventable within the health system in 18.7%, 15.4% and 20.0% of cases in the metropolitan areas, cities and towns, and rural areas respectively. Far fewer preventable deaths were recorded in the spontaneous preterm labour category. CONCLUSION: Concentration on the remediable priority problems identified (namely labour management, resuscitation of the asphyxiated neonate, and care of the premature neonate) makes the reduction of perinatal mortality in South Africa feasible and inexpensive.

Asphyxia Neonatorum↗
PubMed1992

[Current status of knowledge on the epidemiology of rickettsiosis in Africa].

Rickettsioses have been reported all over Africa. Serologic investigations have been driven using non specific methods as Giroud microagglutination and Weil-Felix test which led to numerous false positive. This explains the difficulties encountered in the evaluation of the prevalence of such diseases in Africa. However, three recent studies made in Tunisia, Central Africa and Zimbabwe show that seroprevalence of spotted fever group rickettsiae infections is close to 45% using MIF as reference method. New technics as Western and Line immunoblotting and RFLP PCR should allowed to new studies and revision of epidemiologic data on rickettsioses in Africa.

Africa↗
PubMed2003

Fighting AIDS in Sub-Saharan Africa: is a public- private partnership a viable paradigm?

UNLABELLED: In their most recent study, the United Nations AIDS Program estimates that about 22 million people around the world have died from AIDS, and about 40 million more are currently infected with the HIV virus. About 83% of AIDS deaths and 71% of HIV infections have occurred in war-ravaged, poverty-stricken Sub-Saharan Africa. This pandemic is ripping apart the social and economic fabric of this part of the world. The only remedy for this crisis is both prevention and cure. Only through massive education can early and sustained prevention efforts prevent future infections. And only by giving those infected with HIV effective treatments will people be prevented from dying of AIDS in the future. Without a bold, concerted action, not only will millions die in Africa, but the entire world will suffer. To allow sub-Saharan Africa to become socially and economically devastated will have a major impact on the economies of every country of the world. The African Comprehensive HIV/AIDS Partnership (ACHAP) is one answer to the problem. ACHAP, is a joint initiative between the government of Botswana, the Bill and Melinda Gates Foundation and the Merck Company Foundation. This public-private partnership has provided a new sense of optimism for fighting this devastating pandemic. ACHAP offers all interested parties a multifaceted paradigm that addresses not only the need for ARV medications, but also the other social and medical facets of the HIV/AIDS problem facing sub-Saharan Africa. If a coordinated effort can be launched in the other sub-Saharan African nations, using ACHAP as a paradigm, then there is the possibility that the fight against AIDS could be won. CONCLUSIONS: Clinical ethics is of necessity a two-way street, one in which ethical paradigms influence practitioners and researchers whose expertise, in turn, necessarily educates the non-clinical ethicist.

Acquired Immunodeficiency Syndrome↗
PubMedDate not supplied

HIV/AIDS care and treatment in sub-Saharan Africa.

Antiretroviral (ARV) drugs have become the cornerstone of care and treatment for AIDS in North America, Brazil, and Europe. Twenty years into the epidemic, and more than 10 years after the introduction of ARV's, effective global treatment of AIDS, particularly in sub-Saharan Africa where the epidemic is most concentrated, is an extraordinary challenge. Guidelines and experience in anti-microbial prophylaxis, prescription and monitoring of ARV's in resource-rich countries should inform the efforts to scale-up AIDS care and treatment in Africa. Here, we review the considerable experience of ARV treatment acquired largely in the Americas and Europe, and the fledgling clinical trials and observational studies in Africa. Implementation of safe, effective, and equitable access to ARV's in Africa should be cognizant of the guidelines for ARV treatment in the Northern countries. Careful observation and operational research to accrue more African data, and evaluate regional and local solutions to this daunting challenge, will identify new approaches to scaling-up of ARV treatment.

Africa South of the Sahara↗
PubMed2004

HIV/AIDS in Sub-Saharan Africa.

Sub-Saharan Africa is the region most severely affected by the HIV/AIDS pandemic. Of the 40 million HIV infected individuals at the end of 2003, 26 million (65%) were living in the area. Reasons for the high infection rate include historical, political, economic, and cultural factors. The diversity of populations, combined with destitution, political and economic instability and hunger, has led to a number of strategies for combating the disease in Sub-Saharan Africa. These include voluntary counseling and testing, community involvement, facilitating behavior modifications, which include consistent and correct use of condoms, reduction in the number of sexual partners, increasing antiretroviral availability, and the involvement of non-governmental organizations in prevention, treatment, care, and support of the infected population. While Uganda has accomplished significant success through these mechanisms, other countries have not yet been able to control the disease. The populations requiring special attention include women of child-bearing age, who make 55% of the Sub-Saharan Africa's HIV infected population, children and the elderly. In this review, the current state of HIV/AIDS in Sub-Saharan Africa will be explored, in many cases referring to the situation in the southern African country of Malawi. Lessons will be highlighted and hopefully will contribute to the debate on HIV/AIDS and success of current and future prevention and control efforts.

Acquired Immunodeficiency Syndrome↗
PubMed2004

Antenatal HIV screening and treatment in South Africa: social norms and policy options.

South Africa has one of the highest prevalence of HIV and AIDS in the world, with mother-to-child transmission being an important route for spread of the infection. For years, AIDS scientists and activists locally and internationally have been working desperately for the people of South Africa to have access to treatment for HIV and AIDS. Policymakers in South Africa have consistently maintained that HIV infection is not responsible for AIDS, thus creating the biggest obstacle to implementation of appropriate prevention and therapeutic programmes, including antiretroviral therapy for HIV positive persons. Only recently, people within the government and ruling party, defying previous policy, have agreed that antiretroviral drugs should be given to pregnant women with HIV. The social fabric of South African society is markedly different from that of Western countries. In this paper, the author analyses the likely implications of antenatal testing and treatment of pregnant women in South Africa, in light of the socio-economic and cultural status of women in that society.

Anti-HIV Agents↗
PubMed2004

Plasmodium falciparum parasite prevalence in East Africa: a review.

OBJECTIVES: Empirical data on malaria endemicity are rarely available for public domain use to guide effective malaria control. This paper describes the work carried in East Africa since 1997 as part of a pan-African collaboration to map the risk of malaria, Mapping Malaria Risk in Africa (MARA) aimed at redressing deficiency. DATA EXTRACTION: Studies of cross-sectional community estimates of Plasmodium falciparum prevalence among children aged 0-15 years were identified from a variety of sources including electronic searches of published material, manual review of pre-electronic peer reviewed journals and searches of libraries and archives in Kenya, Tanzania and Uganda. Each survey source, infection prevalence, date, longitude and latitude and survey characteristics were recorded. DATA SYNTHESIS: All data were subjected to a number of selection criteria including minimum sample sizes, samples randomly selected, community-based surveys, age ranges of sampled communities within 0-15 years, and surveys that were spatially unique. Of the 2,003 survey data points identified since 1907 in East Africa, only 503 were eligible for inclusion in the analysis dating from 1927 to 2003. The spatial plots of the data demonstrate the paucity of information on malaria prevalence from a number of densely populated areas and highlight the concentration of empirical data in concert with research centres in the sub-region. CONCLUSIONS: Models are required to define malaria risk in areas of East Africa where no empirical data are available so that limited resources can be better targeted to those in greatest need.

Adolescent↗
PubMed2005

Patterns of neuroAIDS in Africa.

According to UNAIDS, the African population accounts for greater than half of persons infected with HIV. Nevertheless, little information exists characterizing HIV in this population. Thus, the natural history and progression of HIV in the African population is virtually undocumented and therefore, poorly understood. Information regarding virtually every aspect of the disease including microbiology, pathogenicity, virulence, and clinical manifestation is based largely on data from select and limited populations. During the HAART-era, we have seen dramatic and significant changes in patterns of NeuroAIDS in patients in clinical cohorts from the United States and Western Europe. These observations have led to increased understanding of the progression of NeuroAIDS and have improved our ability to design treatment regimens to combat CNS complications resulting from HIV. Despite the existence of antiretroviral therapy for HIV, its absence in Africa along with poor treatments for opportunistic infections associated with HIV have become the main sources of neurological morbidity and mortality. In this context, we are presented with a unique opportunity to cultivate and enhance our understanding of the natural history and progression of NeuroAIDS in the African population thereby, better equipping healthcare providers, patients and their families in addressing this epidemic. This concept is particularly important as rapidly improving and more accessible anti-HIV medications and medications for the treatment of opportunistic infections become available to third world countries such as Africa. We believe that it is imperative to foster research, education and training between institutions in the industrialized world and Africa to close the gap in understanding patterns of NeuroAIDS in Africa.

AIDS Dementia Complex↗
PubMed2005

[Child sexual abuse and sexually transmitted infections in sub-saharan Africa].

Recently there has been increasing public concern regarding escalating child sexual abuse (CSA) in the sub-Saharan Africa. Medical consequences of child sexual abuse (CSA) include sexually transmitted infection (STI) and human immune virus (HIV) infection. The purpose of the study was to review literature on CSA and associated STI/HIV in the sub-Saharan Africa. The study covered the 23-year period from 1980 to 2003. The mean age of the child victims was 8 years. The incidence of penetrative sex in the studies ranged from 70 to 97%. Physical signs of CSA included genital or anal injuries, perineal trauma, and vesico-vaginal or recto-vaginal fistula. The incidence of STD varied according to whether the study was retrospective or prospective. Ten percent to 67% of children with STD had been sexually abused while 15 to 30% of sexual abuse incidents were associated with STD. The prevalence of HIV ranged from 3% in Togo to 37.5% in Cameroon. Most alleged child abusers were adult males known by the child, i.e., family members (30-60%), instructors or teachers, household personnel or neighbours. Some acts were motivated by traditional practices such as early, forced marriage and beliefs such as presumed benefits of sex with virgin children (cure for STI/HIV/STD, magic powers or wealth). This study shows that CSA is widespread throughout sub-Saharan Africa. Most problem involving CSA in sub-Saharan Afica have not been documented. Knowledge about the extent and special aspects of CSA in Africa can be useful for implementation of suitable management measures.

Africa South of the Sahara↗
PubMed1999

HIV/AIDS - the evolving pandemic and its impact on oral health in sub-Saharan Africa.

This review provides an update on HIV/AIDS based on a literature search (1989-1999) in respect of its epidemiology and oral manifestations in sub-Saharan Africa. The African epidemic is unique in its heterosexual spread, high prevalence in men, women and children, rapid rise in young women and risk of vertical transmission. Viral subtypes A and D predominate in Africa, subtype C in South Africa and subtype E in Central Africa. The pandemic is fueled by endemic poverty, malnutrition, gender inequality and sexual and cultural practices. Oral lesions may frequently be the initial presenting signs of HIV infection, early clinical features, predictors of progression of disease and may be useful in staging and classification. Health care workers require training to understand, diagnose, manage and research these manifestations.

AIDS-Related Opportunistic Infections↗
PubMed2006

Guideline for the management of nosocomial infections in South Africa.

OBJECTIVE: To write a guideline for the management and prevention of nosocomial infections in South Africa in view of the following: Nosocomial infections are a common and increasing problem globally, including South Africa. Widely varying standards of prevention and management of these important infections. Increasing and emerging antimicrobial resistance among commonly isolated pathogens. The significant economic burden of these infections on the health care system as well as their impact on patient morbidity and mortality. The main aims of the guideline are to provide recommendations for the initial choice of antimicrobial agents and the appropriate management of these infections encompassing the following conditions: (i) nosocomial pneumonia, health care-associated pneumonia and ventilator-associated pneumonia; (ii) nosocomial bloodstream infections; (iii) nosocomial intravascular infections; (iv) nosocomial urinary tract infections; (v) nosocomial intra-abdominal infections; and (vi) nosocomial surgical skin and soft-tissue infections. EVIDENCE: Working group of clinicians from relevant disciplines, following detailed literature review. RECOMMENDATIONS: These include details of the likely pathogens, an appropriate diagnostic approach, antibiotic treatment options and appropriate preventive strategies. ENDORSEMENT: The guideline document was endorsed by the South African Thoracic Society, the Critical Care Society of Southern Africa and the Federation of Infectious Diseases Societies of Southern Africa.

Anti-Infective Agents↗
PubMed2006

[Severe opportunistic infections in HIV-positive adults in sub-Saharan Africa].

The threat for opportunistic diseases in HIV-infected adults in sub-Saharan Africa is characterized by a higher frequency of tuberculosis and invasive bacterial diseases than in Europe and by the presence of malaria. Since these three infections may occur early after the onset of immuno-deficiency, HIV-infected patients with less than 200 CD4/mm3 are more likely to develop an infectious episode with severe morbidity in sub-Saharan Africa than in Europe. For this reason the WHO now recommends starting cotrimoxazole prophylaxis at 350 and even 500 CD4/mml in sub-Saharan Africa. The question of whether antiretroviral treatment should also be initiated "earlier" in sub-Saharan Africa than in Europe has also been raised.

Africa South of the Sahara↗