Seizing the opportunity: collaborative initiatives to reduce HIV and maternal mortality

Maternal mortality in the covid-19 pandemic: findings from a rapid systematic review

BACKGROUND

The COVID-19 pandemic is having significant direct and associated effects on many health outcomes, including maternal mortality. As a useful marker of healthcare system functionality, trends in maternal mortality provide a lens to gauge impact and inform mitigation strategies.

OBJECTIVE

To report the findings of a rapid systematic review of studies on levels of maternal mortality before and during the COVID-19 pandemic.

METHODS

We systematically searched for studies on the 1st March 2021 in MEDLINE and Embase, with additional studies identified through MedRxiv and searches of key websites. We included studies that reported levels of mortality in pregnant and postpartum women in time-periods pre- and during the COVID-19 pandemic. The maternal mortality ratio was calculated for each study as well as the excess mortality.

RESULTS

The search yielded 3411 references, of which five studies were included in the review alongside two studies identified from grey literature searches. Five studies used data from national health information systems or death registries (Mexico, Peru, Uganda, South Africa, and Kenya), and two studies from India were record reviews from health facilities. There were increased levels of maternal mortality documented in all studies; however, there was only statistical evidence for a difference in maternal mortality in the COVID-19 era for four of these. Excess maternal mortality ranged from 8.5% in Kenya to 61.5% in Uganda.

CONCLUSIONS

Measuring maternal mortality in pandemics presents many challenges, but also essential opportunities to understand and ameliorate adverse impact both for women and their newborns. Our systematic review shows a dearth of studies giving reliable information on levels of maternal mortality, and we call for increased and more systematic reporting of this largely preventable outcome. The findings help to highlight four measurement-related issues which are priorities for continuing research and development.

Human immunodeficiency virus and infertility treatment: an Ethics Committee opinion

Human Immunodeficiency Virus is a serious but manageable chronic disease that affects persons of reproductive age, many of whom express a desire for biological parenthood. This document is a revision of the original document of the same name, last published in 2015 (Fertil Steril 2015;104:e1-8).

Classification of deaths in women with human immunodeficiency virus/acquired immunodeficiency syndrome in pregnancy and childbirth

OBJECTIVE

To reclassify deaths of women infected with the human immunodeficiency virus/acquired immunodeficiency syndrome in pregnancy and childbirth in the State of Pernambuco, Brazil, from 2000 to 2010.

METHODS

A descriptive exploratory study, developed from the following steps: translation to Portuguese of the item "HIV and aids" of the United Nations document "The WHO application of ICD-10 to deaths during pregnancy, childbirth and the puerperium: DCI MM 2012"; development of a classification algorithm of deaths of women living with the human immunodeficiency virus/acquired immunodeficiency syndrome in pregnancy and childbirth; and reclassification of deaths by a group of experts.

RESULTS

Among the 25 reclassified deaths, 12 were due to human immunodeficiency virus/acquired immunodeficiency syndrome, and pregnancy condition was coexisting; 9 were reclassified as indirect maternal death, with O98.7 code, proposed by the World Health Organization; 2 as direct/indirect maternal death; and 2 were considered indeterminate.

CONCLUSION

The reclassification showed a possible pattern of change in maternal mortality, since most of the deaths were attributed to the virus and may lead to a reduction in deaths from maternal causes. The algorithm will subsidize the use of the new classification of maternal death and human immunodeficiency virus/acquired immunodeficiency syndrome.

Human immunodeficiency virus (HIV) and infertility treatment: a committee opinion

Human immunodeficiency virus (HIV) is a serious but manageable chronic disease that affects persons of reproductive age, many of whom express a desire for biologic parenthood. This document is a revision of the original document of the same name, last published in 2010 (Fertil Steril 2010;94:11-5).

Preventing HIV infections in children and adolescents in sub-Saharan Africa through integrated care and support activities: a review of the literature

Sub-Saharan Africa has been hit harder by the HIV/AIDS pandemic than any other region of the world, and children under age eighteen represent one-third of all new HIV infections occurring there annually. While HIV prevention efforts targeting youth are well established, few prevention programmes provide comprehensive care and support services. One reason for this is that prevention messages are often targeted only at older adolescents, and care and support activities typically emphasise the needs of younger children. By expanding prevention activities to younger children, and expanding care and support activities to older adolescents, more holisitic, and truly integrated programmes can be developed which address the common factors which make children of any age particularly vulnerable to HIV infection, namely: inadequate access to health care and unstable familial and social environments. This paper reviews evidence of the potential impact of care and support activities on HIV prevention among youth, and presents a conceptual framework for the development of comprehensive, effective, integrated HIV/AIDS prevention and care programmes tailored to the specific needs of youth.

Training and nutritional components of PMTCT programmes associated with improved intrapartum quality of care in Mali and Senegal

OBJECTIVE

Scale-up of prevention of mother-to-child transmission (PMTCT) of HIV programmes in sub-Saharan Africa has stimulated interest to assess whether these programmes can indirectly affect other health priorities. This study assesses whether PMTCT programmes, or components of these programmes, are associated with better obstetrical quality of care and how PMTCT may reinforce existing maternal health programmes.

DESIGN

Cross-sectional analysis of data from a cluster-randomized trial called QUARITE.

SETTING

Mali and Senegal, West Africa.

PARTICIPANTS

Thirty-one referral hospitals and 612 obstetrical patients.

INTERVENTION

The exposure of interest was PMTCT measured with a scale containing 10 components describing different prongs of a hospital PMTCT programme. Other variables of interest included: presence of a quality of care improvement programme, hospital resources and patient demographic characteristics.

MAIN OUTCOME MEASURE

Obstetrical quality of care measured through a validated chart abstraction tool.

RESULTS

Of 45 points, the mean hospital PMTCT score was 26.1 (SD: 6.7). Total PMTCT score was not significantly associated with quality of care, but programme component scores were. After adjustment for known predictors of quality of care, staff training in PMTCT (P = 0.03) and complementary nutritional services (P = 0.03) were significantly associated with better quality obstetrical care. A point increase in scores for either of these components was associated with 40% greater odds of good obstetrical care.

CONCLUSIONS

PMTCT training and nutritional components are significantly associated with better quality intrapartum care. Health professionals' training in maternal healthcare and PMTCT could be combined to improve the quality of obstetric care in the region.

Maternal mortality in Malawi, 1977-2012

BACKGROUND

Millennium Development Goal 5 (MDG 5) targets a 75% reduction in maternal mortality from 1990 to 2015, yet accurate information on trends in maternal mortality and what drives them is sparse. We aimed to fill this gap for Malawi, a country in sub-Saharan Africa with high maternal mortality.

METHODS

We reviewed the literature for population-based studies that provide estimates of the maternal mortality ratio (MMR) in Malawi, and for studies that list and justify variables potentially associated with trends in MMR. We used all population-based estimates of MMR representative of the whole of Malawi to construct a best-fit trend-line for the range of years with available data, calculated the proportion attributable to HIV and qualitatively analysed trends and evidence related to other covariates to logically assess likely candidate drivers of the observed trend in MMR.

RESULTS

14 suitable estimates of MMR were found, covering the years 1977-2010. The resulting best-fit line predicted MMR in Malawi to have increased from 317 maternal deaths/100 000 live-births in 1980 to 748 in 1990, before peaking at 971 in 1999, and falling to 846 in 2005 and 484 in 2010. Concurrent deteriorations and improvements in HIV and health system investment and provisions are the most plausible explanations for the trend. Female literacy and education, family planning and poverty reduction could play more of a role if thresholds are passed in the coming years.

CONCLUSIONS

The decrease in MMR in Malawi is encouraging as it appears that recent efforts to control HIV and improve the health system are bearing fruit. Sustained efforts to prevent and treat maternal complications are required if Malawi is to attain the MDG 5 target and save the lives of more of its mothers in years to come.

Mother-to-child transmission of HIV and its predictors among HIV-exposed infants at a PMTCT clinic in northwest Ethiopia

Background

Mother-to-child transmission of HIV (MTCT) accounts for more than 90% of pediatric Acquired Immunodeficiency Syndrome (AIDS) cases. Prevention of mother to child transmission (PMTCT) programs are provided for dual benefits i.e. prevention of HIV transmission from mother to child and enrolment of infected pregnant women and their families into antiretroviral treatment (ART). This study assessed risk and predictors of HIV transmission among HIV-exposed infants on follow up at a PMTCT clinic in a referral hospital.

Methods

Institution based retrospective follow up study was carried at Gondar University referral hospital PMTCT clinic. All eligible records of HIV-exposed infants enrolled between September 2005 and July 2011 were included. A midwife nurse collected data using a structured data extraction format. Data were then entered in to EPI INFO Version 3.5.1 statistical software and analyzed by SPSS version 20.0. Both bivariate and multivariate analyses were carried out to identify associations.

Results

A total of 509 infant records were included in the analysis. The median age of infants at enrolment to follow up was 6 weeks (inter quartile range [IQR] = 2 weeks). A total of 51(10%, 95% CI: 7.8% - 13%) infants were infected with HIV. Late enrolment to the exposed infant follow up clinic (Adjusted Odds Ratio [AOR] = 2.89, 95% CI: 1.35, 6.21), rural residence (AOR = 5.05, 95% CI: 2.34, 10.9), home delivery (AOR = 2.82, 95% CI: 1.2, 6.64), absence of maternal PMTCT interventions (AOR = 5.02, 95% CI: 2.43, 10.4) and mixed infant feeding practices (AOR = 4.18, 95% CI: 1.59, 10.99) were significantly and independently associated with maternal to child transmission of HIV in this study.

Conclusions

There is a high risk of MTCT of HIV among exposed infants on follow up at the PMTCT clinic of the University of Gondar referral hospital. The findings of this study will provide valuable information for policy makers to enhance commitment and support for rural settings in the PMTCT scaling-up program.

Understanding methods for estimating HIV-associated maternal mortality

The impact of HIV on maternal mortality and more broadly on the health of women, remains poorly documented and understood. Two recent reports attempt to address the conceptual and methodological challenges that arise in estimating HIV-related maternal mortality and trends. This paper presents and compares the methods and discusses how they affect estimates at global and regional levels. Country examples of likely patterns of mortality among women of reproductive age are provided to illustrate the critical interactions between HIV and complications of pregnancy in high-HIV-burden countries. The implications for collaboration between HIV and reproductive health programmes are discussed, in support of accelerated action to reach the Millennium Development Goals and improve the health of women.

Moving beyond behaviour: advancing HIV risk prevention epistemologies and interventions (A report on the state of the literature)

This paper is based on an extensive literature review of academic, policy and 'grey' literatures on the intersections of culture and the global HIV/AIDS pandemic commissioned by UNESCO. It highlights that the review exposed a dominant conceptual perspective that poorly captures structures of vulnerability, particularly structures that expose entire populations to risk in relatively uniform ways. Stemming from this, the review revealed a series of specific topical areas in need of further research including masculinities, transactional sex, infrastructural deficits in health and education, fragile states and global governance. For each of these topical areas the authors demonstrate the relationship to the conceptual limitation, summarise relevant research in this area, and provide evidence of applicability to public health interventions. In pursuit of more effective interventions, this paper draws attention to some of the conceptual limitations of current approaches to understanding the pandemic, and calls for interventions that move beyond individual behaviours to address structures that shape individual behaviour and make entire populations more vulnerable to HIV.

Human immunodeficiency virus and infertility treatment

Human immunodeficiency virus is a serious but manageable chronic disease that affects persons of reproductive age, many of whom express a desire for biologic parenthood. This document is a revision of the original document of the same name, published in 2002 and reviewed in 2006.

Participation of traditional birth attendants in prevention of mother-to-child transmission of HIV services in two rural districts in Zimbabwe: a feasibility study

Background

Prevention of Mother-to-Child Transmission of HIV (PMTCT) is among the key HIV prevention strategies in Zimbabwe. A decrease in use of antenatal care (ANC) services with an increase in home deliveries is affecting the coverage of PMTCT interventions in a context of accelerated economic crisis. The main objective was to evaluate acceptability and feasibility of reinforcing the role of traditional birth attendants (TBAs) in family and child health services through their participation in PMTCT programmes in Zimbabwe.

Methods

A community based cross-sectional survey was undertaken using multistage cluster sampling in two rural districts through interviews and focus group discussions among women who delivered at home with a TBA, those who had an institutional delivery and TBAs.

Results

45% of TBAs interviewed knew the principles of PMTCT and 8% delivered a woman with known HIV-positive status in previous year. Of the complete package of PMTCT services, more than 75% of TBAs agreed to participate in most activities with the exception of performing a blood test (17%), accompanying new-borns to closest health centre to receive medication (15%) and assisting health centres in documentation of the link ANC-PMTCT services (18%). Women who delivered at home were less likely to have received more than one ANC service or have had contact with a health centre compared to women who delivered in a health centre (91.0% vs 72.6%; P < 0.001). Also, 63.6% of the women who delivered in a health centre had the opportunity to choose the place of delivery compared to 39.4% of women who delivered at home (P < 0.001). More than 85% of women agreed that TBAs could participate in all activities related to a PMTCT programme with the exception of performing a blood test for HIV. Concerns were highlighted regarding confidentiality of the HIV-serostatus of women.

Conclusion

Although the long-term goal of ANC service delivery in Zimbabwe remains the provision of skilled delivery attendance, PMTCT programmes will benefit from complementary approaches to prevent missed opportunities. TBAs are willing to expand their scope of work regarding activities related to PMTCT. There is a need to reinforce their knowledge on MTCT prevention measures and better integrate them into the health system.

HIV-1 and HIV-2 prevalence and associated risk factors among postnatal women in Harare, Zimbabwe

Studies of antenatal women form the predominant source of data on HIV-1 prevalence in Africa. Identifying factors associated with prevalent HIV is important in targeting diagnostic services and care. Between November 1997 and January 2000, 14,110 postnatal women from Harare, Zimbabwe were tested by ELISAs reactive to both HIV-1 and HIV-2; a subset of positive samples was confirmed with assays specific for HIV-1 and HIV-2. Baseline characteristics were elicited and modelled to identify risk factors for prevalent HIV infection. HIV-1 and HIV-2 prevalences were 32.0% (95% CI 31.2-32.8) and 1.3% (95% CI 1.1-1.5), respectively; 4% of HIV-1-positive and 99% of HIV-2-positive women were co-infected. HIV-1 prevalence increased from 0% among 14-year-olds to >45% among women aged 29-31 years, then fell to <20% among those aged>40 years. In multivariate analyses, prevalence increased with parity, was lower in married women than in single women, divorcees and widows, and higher in women with the lowest incomes and those professing no religion. Adjusted HIV-1 prevalence increased during 1998 and decreased during 1999. Age modified the effects of parity, home ownership and parental education. Among older women, prevalence was greater for women who were not homeowners. Among younger women, prevalence increased with parity and low parental education. None of these factors distinguished women co-infected with HIV-2 from those infected with HIV-1 alone. Prevalent HIV-1 infection is associated with financial insecurity and weak psychosocial support. The ZVITAMBO study apparently spanned the peak of the HIV-1 epidemic among reproductive women in Harare.

Maternal health in poor countries: the broader context and a call for action

In this paper, we take a broad perspective on maternal health and place it in its wider context. We draw attention to the economic and social vulnerability of pregnant women, and stress the importance of concomitant broader strategies, including poverty reduction and women's empowerment. We also consider outcomes beyond mortality, in particular, near-misses and long-term sequelae, and the implications of the close association between the mother, the fetus, and the child. We make links to a range of global survival initiatives, particularly neonatal health, HIV, and malaria, and to reproductive health. Finally, after examining the political and financial context, we call for action. The need for strategic vision, financial resources, human resources, and information are discussed.

Traditional birth attendants in developing countries cannot be expected to carry out HIV/AIDS prevention and treatment activities

Pregnancy and birth, fertility and fertility regulation are all greatly affected by the exigencies of HIV and AIDS, and vice versa. Women and infants can only benefit if the respective policymakers, researchers and service providers in sexual and reproductive health and HIV/AIDS, particularly those involved in prevention of mother-to-child transmission of HIV, gain greater knowledge of each others' expertise and seek to integrate the best of both into the care they each offer. The growth in access to antiretroviral treatment for mothers as well as infants, including during pregnancy and the breastfeeding period, makes such efforts even more timely and crucial. Yet there are worrying signs that specialists in both camps are making inappropriate policy and service delivery recommendations based on too little knowledge of each others' patches. As an example of this problem, this article discusses and rejects a recommendation in a recent BMJ article that traditional birth attendants could be trained to carry out HIV prevention and possibly provide HIV tests and drugs for prevention of HIV transmission during home deliveries in developing countries.

Aspects of the care of people with HIV/AIDS in South Africa

The study was aimed at exploring the realization of counseling, palliative care, and terminal care in the care of people with HIV/AIDS in seven settings in South Africa. A descriptive study was performed in seven sites where a model of home-based care was implemented that links hospitals, clinics, and home-based care in a continuum. Data was collected from people with HIV/AIDS (PWA), their caretakers, health care workers, and community members using semistructured interviews, observation, taping of onsite meetings, and completion of questionnaires. Descriptive and nonparametric statistics were used to analyze the quantitative data, and the template approach was used to analyze the qualitative data. There is a need to extend counseling before and after diagnostic testing to counseling about living with HIV/AIDS. There is also a need to equip counselors to deal with children. Fifty-seven percent of patients died at home or in hospice. There is a significant relationship between a "good" death and dying at home. Palliative care in the formal health services was generally poor due mainly to lack of specific training in this field and the stigma associated with this diagnosis. Health care providers can change the experience of illness and death for PWA through adequate counseling, palliative care, and terminal care that meet professional standards.

Perinatal HIV transmission: developing country considerations

In many developing countries, because the prevalence of maternal HIV infection is high (more than 30% in some sub-Saharan African countries) and the resources commonly used to prevent transmission in developed countries are generally not available, transmission of HIV from mother to infant is a devastating problem. Countries already experiencing infant mortality rates 10- to 20-fold greater than those in developed countries can expect a doubling of infant and childhood mortality due to HIV. Those infants who escape infection themselves can expect to be orphaned in early childhood. Low-cost antiviral therapy can reduce transmission substantially, but many countries do not have the infrastructure to screen pregnant women for HIV and appropriately treat the mothers and infants. In developing countries, reduction in maternal-child transmission is feasible, but will require substantial additional resources and a well-functioning obstetric care system.

15 Month follow up of African children following vaginal cleansing with benzalkonium chloride of their HIV infected mothers during late pregnancy and delivery

OBJECTIVES

To study mother to child HIV-1 transmission (MTCT) and infant mortality following benzalkonium chloride (BC) disinfection.

METHODS

A randomised, double blind phase II placebo controlled trial. Women testing positive for HIV-1 infection in prenatal care units in Abidjan, Côte d'Ivoire, and Bobo-Dioulasso, Burkina Faso, from November 1996 to April 1997 were eligible, with their informed consent. Women self administered daily a vaginal suppository of 1% BC (53) or matched placebo (54) from 36 weeks of pregnancy, plus a single dose during labour. The neonate was bathed with 1% BC solution or placebo within 30 minutes after birth. MTCT rate was assessed based on repeated polymerase chain reaction (PCR) and serology results. For the present analysis, children were followed up to 15 months.

RESULTS

A total of 107 women were enrolled. Of 103 eligible liveborn children, 23 were HIV infected, 75 uninfected, and five of indeterminate status. MTCT transmission rate was 24.2% overall (95% confidence interval (CI): 14.3% to 30.4%). On an intent to treat basis, the transmission rate did not differ between the two groups (23.5%, CI 13.8 to 38.5, in the BC group and 24.8%, CI 15.0 to 39.6, in the placebo group at 15 months). Similarly, there was no difference in mortality at 15 months (22.9%, CI 13.7 to 36.9, in the BC group and 16.5%, CI 9.0 to 29.4, in the placebo group).

CONCLUSION

This analysis failed to suggest any benefit of BC disinfection on mother to child HIV transmission or perinatal and infant mortality.

Strategies to reduce maternal mortality worldwide

The challenge of reducing maternal mortality is increasingly being addressed by area-based efforts to improve access to care of obstetric emergencies. Improving coverage and quality of skilled attendance at birth is also being increasingly emphasized. Post-abortion care, better reproductive health services for adolescents, and improved family planning care are important ingredients in maternal mortality reduction. New developments in malaria, nutrition, violence and HIV/AIDS in relation to maternal health are highlighted, as well as measurement issues. Maternal mortality reduction is also being promoted today by using a human rights approach.

Advances and research directions in the prevention of mother-to-child HIV-1 transmission

Although substantial progress has been made in preventing mother-to-child HIV-1 transmission in the past decade, critical research questions remain. Two perinatal epidemics now exist. In more-developed countries, integration of prenatal HIV-1 counselling and testing programmes into an existing antenatal infrastructure, availability of effective antiretroviral prophylaxis, and access to infant formula have resulted in new perinatal infections becoming rare. However, identification of missed prevention opportunities, the causes of prophylaxis failure, and the potential effects of in-utero antiretroviral exposure have become a priority. In less-developed countries, antenatal care is limited, testing programmes are almost non-existent, effective interventions remain unimplemented, and prevention of postnatal transmission through breastmilk while maintaining adequate infant nutrition is a major dilemma. The challenge for the next decade is to simultaneously address questions relevant to both epidemics while bridging the gap in prevention of perinatal transmission between more-developed and less-developed countries.

Preventing mother-to-child transmission of HIV-1 in Africa in the year 2000

OBJECTIVES

Various approaches to preventing mother-to-child transmission (MTCT) of HIV have recently been, or are being, evaluated in developing countries, especially in Africa. New findings from these trials are now becoming available, the implications of which, for population-based intervention programmes, need urgent consideration.

METHOD

A critical review of 18 randomized trials and other relevant studies from developing and industrialized countries.

RESULTS

Most African results relate to trials of antiretroviral agents (ARV). They demonstrate efficacy in reducing transmission in the first 6 months of life with short regimens of zidovudine (ZDV), with or without lamivudine (3TC), and nevirapine (NVP) alone. Preliminary results suggest the long-term efficacy of zidovudine. Antiseptic and nutritional interventions have been shown to reduce maternal and infant mortality and morbidity but not MTCT of HIV. HIV confidential voluntary counselling and testing for pregnant women, a short regimen of peripartum ARV with alternatives to breastfeeding such as early weaning or breast milk substitutes from birth currently represent the best option to reduce MTCTof HIV in Africa. However, the prevention of postnatal transmission requires further research, particularly in view of the consequences of different feeding options and the possibility of post-perinatal exposure prophylaxis of newborns with ARV. Issues relating to the implementation of currently validated strategies are discussed.

Maternal plasma viral RNA levels determine marked differences in mother-to-child transmission rates of HIV-1 and HIV-2 in The Gambia. MRC/Gambia Government/University College London Medical School working group on mother-child transmission of HIV

OBJECTIVES

To determine the rates of, and risk factors for, mother-to-child transmission (MCT) of HIV-1 and HIV-2 infection in The Gambia.

DESIGN

A blinded, prospective, community-based cohort study of 29.549 pregnant women attending the eight largest antenatal clinics in The Gambia.

METHODS

Women were tested for HIV-1 and HIV-2 infection. Infected subjects and a group of HIV-seronegative women were followed with their babies until 18 months after delivery. Maternal CD4 cell count percentages were measured before and 18 months after delivery, and the antenatal plasma viral load was determined. Babies were tested for HIV by the polymerase chain reaction and/or serology at 2, 9 and 18 months of age.

RESULTS

The study enrolled 144 women positive for HIV-1 and 294 for HIV-2 plus 565 seronegative pregnant women: the mean antenatal percentage CD4 cell counts of 96 HIV-1-positive, 223 HIV-2-positive and 125 HIV-seronegative mothers were 31% [95% confidence interval (CI) 28-33], 41% (95% CI 39-42) and 47% (95% CI 45-49), respectively. The geometric mean antenatal plasma viral load of 94 HIV-1-infected women was 15,100 copies x 10(3) ml (95% CI 10,400-19,000) which was much higher than that of 60 randomly selected HIV-2-infected women, which was 410 copies x 10(3) ml (95% CI 150-910) (P < 0.001). The estimated transmission rate of HIV-1 was 24.4% (95% CI 14.6-33.9) and that of HIV-2 was 4.0% (95% CI 1.9-7.4). Five of 17 HIV-1-positive and three of eight HIV-2-positive babies were infected after 2 months of age. Birth in the rainy season [odds ratio (OR) 2.9; 95% CI 1.2-7.2], a low postnatal CD4 cell percentage (OR for a 10% fall 2.4; 95% CI 1.1-5.1) and a high maternal plasma viral load (OR for a 10-fold increase 2.9; 95% CI 1.1-7.8) were risk factors for transmission that applied equally to both viruses.

CONCLUSION

Low maternal HIV-2 RNA levels, which on average are 37-fold less than in HIV-1 infection, relate to the low MCT rate of HIV-2.

Prevention of HIV infection in children

The threshold of a new century is an opportune time to review advances in the prevention of HIV infection in children. In the United States, progress in the ability to virtually eliminate perinatal HIV transmission that was unthinkable just a few years ago has been achieved. Clinicians providing care to pregnant women should educate and counsel women about HIV and strongly recommend that they be tested. They should also counsel HIV-infected women about the means available to substantially decrease the risk for HIV transmission to their infants (e.g., antiretroviral drug use, avoidance of breast-feeding, elective C-section, encouraging pregnant women to use barrier methods during sexual intercourse, and to discontinue injection drug use). This article has highlighted some of the remaining challenges that constitute barriers to achieving maximal decrease of HIV infection in children. Studies conducted in resource-poor countries have added greatly to the understanding of vertical transmission of HIV, and they are now leading to practical and affordable approaches to reduce vertical HIV transmission world-wide. The results of this research must lead to coordinated public health action and a global political commitment to extend the benefits of antiretroviral drug prophylaxis that now exist widely in the United States to more resource-poor countries.

Vertical transmission of HIV-1 infection

Vertical transmission is the dominant mode of acquisition of infection for HIV infection in children, and about 1600 infants are newly infected each day worldwide. Without interventions the risk of transmission is between 15% and 35%, and associated with maternal disease progression, prematurity, duration of rupture of membranes, length of labour, and vaginal delivery. Breastfeeding approximately doubles the risk of vertical transmission; the additional risk of transmission through breastfeeding is approximately 15-20%, with about one-third of this accounted for by late postnatal transmission after 3 months of age. Current strategies to reduce the risk of transmission include a short course of anti-retroviral therapy, avoidance of breastfeeding and Caesarean section delivery. However, even if interventions late in pregnancy or around the time of delivery are highly effective in preventing perinatal infection, it is likely that as a public health policy they are of interest only if alternatives to breastfeeding are feasible, affordable, safe and available.

Poor and pregnant in Africa: safe motherhood and human rights

Currently almost 600,000 women die in the world each year owing to the effects of childbirth. The greater proportion of these deaths occur in developing countries. This issue is considered in the light of human rights and equity. This paper was presented in a Plenary session at the Perinatal Society of Australia and New Zealand's third annual congress in Melbourne, March 1999.