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1.
Current trends in HIV/AIDS research in sub-Saharan Africa (SSA) highlight socially and culturally sensitive interventions that mobilize community members and resources for universal access to HIV prevention, treatment, and care services. These factors are particularly important when addressing the complex social and cultural nature of implementing services for prevention of mother-to-child transmission of HIV (PMTCT). Across the globe approximately 34 % fewer children were infected with HIV through the perinatal or breastfeeding route in 2011 (est. 330,000) than in 2001 (est. 500,000), but ongoing mother-to-child HIV transmission is concentrated in sub-Saharan Africa, where fully 90 % of 2011 cases are estimated to have occurred. Recent literature suggests that PMTCT in Africa is optimized when interventions engage and empower community members, including male partners, to support program implementation and confront the social, cultural and economic barriers that facilitate continued vertical transmission of HIV. In resource-limited settings the feasibility and sustainability of PMTCT programs require innovative approaches to strengthening male engagement by leveraging lessons learned from successful initiatives in SSA. This review presents an overview of studies assessing barriers and facilitators of male participation in PMTCT and new interventions designed to increase male engagement in East, West, and Central Africa from 2000–2013, and examines the inclusion of men in PMTCT programs through the lens of community and facility activities that promote the engagement and involvement of both men and women in transformative PMTCT initiatives.  相似文献   

2.
In the 30 years of the AIDS pandemic, the devastating effects of HIV on infants and young children have often been overlooked and neglected. However, the ability to prevent mother-to-child transmission of HIV (PMTCT), or vertical transmission, has been one of the most significant prevention success stories in the global AIDS response. New HIV infections in children have been virtually eliminated in high-income countries and programmatic efforts have shifted to low-income and middle-income countries, particularly in sub-Saharan Africa, home to the vast majority of pediatric AIDS cases.Over the past decade, the dramatic scale-up of PMTCT programs has saved millions of lives and has provided a foundation for HIV prevention and care and treatment programs that are integrated within maternal and child health services. Although some countries in sub-Saharan Africa are now approaching universal PMTCT coverage, global access to PMTCT for HIV-positive pregnant women remains at nearly 50%. Recently, a new global plan has focused efforts and resources to keep HIV-positive mothers healthy and to virtually eliminate new pediatric infections by 2015.What programmatic and technical innovations will be necessary to overcome current service gaps and implementation barriers? How can countries continue the current momentum with sustainable locally-led programs that address the epidemic in women and children? And how can the vital perspectives of communities and people living with HIV help drive these efforts? Successfully addressing these and other issues will be key to ending HIV infections in children and creating an AIDS-free generation within the next decade.  相似文献   

3.
BACKGROUND: The implementation of disease-specific research or service programs may have an ancillary beneficial or harmful impact on routine clinical services. METHODS: We reviewed the records of 5801 first visits to 22 antenatal clinics from 1997 to 2004 in Lusaka, Zambia and examined documented syphilis rapid plasma reagin (RPR) screening and syphilis treatment before and after implementation of research and/or service programs in prevention of mother-to-child (PMTCT) HIV transmission. FINDINGS: Compared with before PMTCT program implementation, the prevalence odds ratios (PORs) and 95% confidence intervals (CIs) for documented RPR screening were 0.9 (0.7 to 1.1) after implementation of research, 0.7 (0.6 to 0.8) after service, and 2.5 (2.1 to 3.0) after research and service programs. CONCLUSIONS: Documented RPR screening was improved after implementation of PMTCT research and service were operating simultaneously and not with research or service alone. Health policy makers and researchers should plan explicitly for how the targeted HIV programs, service, and/or research can have a broader primary care impact.  相似文献   

4.
Low uptake of prevention of mother-to-child transmission of HIV (PMTCT) services in resource-limited settings requires new approaches to prevent missed opportunities. Routine HIV testing ("opt-out" testing) in antenatal care (ANC) should be considered. An exploratory cross-sectional survey was conducted in 6 PMTCT sites in rural Zimbabwe. Women who had attended ANC in health centers where PMTCT was provided were surveyed in postnatal services. Of 520 women sampled, 285 (55%) had been HIV tested during their last pregnancy. Primary education or no education (P = 0.02), reporting receiving neither group education in the ANC clinic (P < 0.001) nor individual pretest counseling (P < 0.001), and having attended <6 ANC visits (P < 0.03) were associated with not having been HIV tested. Among the 235 women not HIV tested in ANC, 79% would accept HIV testing if opt-out testing was introduced. Factors associated with accepting the opt-out approach were being <20 years old (P = 0.005), having secondary education or more (P = 0.03), living with a partner (P = 0.001), and the existence of a PMTCT service where the untested women delivered. Thirty-seven women of 235 (16%) would decline routine HIV testing, mainly because of their fear of knowing their HIV status and the need to have their partner's consent. Among the women already tested in ANC (n = 285), 97% would accept the opt-out approach. In Zimbabwe, where 25% of pregnant women are HIV infected, introducing the opt-out strategy for HIV testing may have a far-reaching public health impact on PMTCT. Issues regarding, stigma, quality of post-testing counseling and staffing must be considered, however.  相似文献   

5.
In June 2011, the Joint United Nations Programme on HIV/AIDS, the US President's Emergency Plan for AIDS Relief (PEPFAR), and other collaborators outlined a transformative plan to virtually eliminate pediatric AIDS worldwide. The ambitious targets of this initiative included a 90% reduction in new pediatric HIV infections and a 50% reduction in HIV-related maternal mortality--all by 2015. PEPFAR has made an unprecedented commitment to the expansion and improvement of prevention of mother-to-child HIV transmission (PMTCT) services globally and is expected to play a critical role in reaching the virtual elimination target. To date, PEPFAR has been instrumental in the success of many national programs, including expanded coverage of PMTCT services, an enhanced continuum of care between PMTCT and HIV care and treatment, provision of more efficacious regimens for antiretroviral prophylaxis, design of innovative but simplified PMTCT approaches, and development of new strategies to evaluate program effectiveness. These accomplishments have been made through collaborative efforts with host governments, United Nations agencies, other donors (eg, the Global Fund for AIDS, Tuberculosis, and Malaria), nongovernmental organizations, and private sector partners. To successfully meet the ambitious global targets to prevent new infant HIV infections, PEPFAR must continue to leverage the existing PMTCT platform, while developing innovative approaches to rapidly expand quality HIV services. PEPFAR must also carefully integrate PMTCT into the broader combination prevention agenda for HIV, so that real progress can be made toward an "AIDS-free generation" worldwide.  相似文献   

6.
BACKGROUND: The World Health Organization recommends a single-dose nevirapine (NVP) regimen for prevention of mother-to-child transmission (PMTCT) of HIV in settings without the capacity to deliver more complex regimens, but the population-level impact of this intervention has rarely been assessed. METHODS: A decision analysis model was developed, parameterized, and applied using local epidemiologic and demographic data to estimate vertical transmission of HIV and the impact of the PMTCT program in Zimbabwe up to 2005. RESULTS: Between 1980 and 2005, of approximately 10 million children born in Zimbabwe, a cumulative 504,000 (range: 362,000 to 665,000) were vertically infected with HIV; 59% of these infections occurred in nonurban areas. Mother-to-child transmission (MTCT) of HIV decreased from 8.2% (range: 6.0% to 10.7%) in 2000 to 6.2% (range: 4.9% to 8.9%) in 2005, predominantly attributable to declining maternal HIV prevalence rather than to the PMTCT program. Between 2002 and 2005, the single-dose NVP PMTCT program may have averted 4600 (range: 3900 to 7800) infections. In 2005, 32% (range: 26% to 44%) and 4.0% (range: 2.7% to 6.2%) of infections were attributable to breast-feeding and maternal seroconversion, respectively, and the PMTCT program reduced infant infections by 8.8% (range: 5.5% to 12.1%). Twice as many infections could have been averted had a more efficacious but logistically more complex NVP + zidovudine regimen been implemented with similar coverage (50%) and acceptance (42%). DISCUSSION: The decline in MTCT from 2000 to 2005 is attributable more to the concurrent decrease in HIV prevalence in pregnant women than to PMTCT at the current level of rollout. To improve the impact of PMTCT, program coverage and acceptance must be increased, especially in rural areas, and local infrastructure must then be strengthened so that single-dose NVP can be replaced with a more efficacious regimen.  相似文献   

7.

Background

In the context of universal access to prevention, treatment, care and support, each country has to ensure that 80% of women and children in need have access to PMTCT interventions.

Objective

To assess the PMTCT program achievement in Ouagadougou, the capital city of Burkina Faso.

Methods

Between August and October 2008, a cross sectional study was carried out in the five health districts of the Centre Health Region. We reviewed weekly statistics from all health care centres (HCC) to compute the coverage of PMTCT program. In 38 HCC with functional PMTCT program, we extracted data of interest from HCC registers and made direct observations of PMTCT services.

Results

The PMTCT program was implemented in 49% of HCC (target for the national program: 70%). Fifteen to 31% of these centers were often in shortage for PMTCT consumables. Patients'' privacy was not observed in 67% of Voluntary Counselling & HIV Testing wards. Care providers were not qualified enough to deliver PMTCT services. Vitamin A supplementation was not implemented. None of the facilities offered the whole package of PMTCT program interventions. HCC providing HIV testing in labour or in postnatal ward were consistently lacking. Only 86% of antenatal care new attendants benefited from pre-test counselling; 2.4% of pretested women were HIV-positive and 39% of positive mothers received antiretroviral prophylaxis.

Conclusion

Coverage and quality of PMTCT programme in the Centre Health Region in Burkina Faso are still limited. Particular support is needed for training, supervision and infrastructures upgrading.  相似文献   

8.

Background  

Implementation of programs for the prevention of mother-to-child transmission (PMTCT) of HIV faces a variety of barriers and challenges. The assessment of these challenges has generally been conducted in large urban health facilities. As programs expand into rural areas, the potential barriers that may be encountered there also need to be assessed. This study examines potential barriers that might affect the acceptability of interventions for PMTCT in rural and urban settings.  相似文献   

9.
BACKGROUND: Botswana has high HIV prevalence among pregnant women (37.4% in 2003) and provides free services for prevention of mother-to-child transmission (PMTCT) of HIV. Nearly all pregnant women (>95%) have antenatal care (ANC) and deliver in hospital. Uptake of antenatal HIV testing was low from 1999 through 2003. In 2004, Botswana's President declared that HIV testing should be "routine but not compulsory" in medical settings. METHODS: Health workers were trained to provide group education and recommend HIV testing as part of routine ANC services. Logbook data on ANC attendance, HIV testing, and uptake of PMTCT interventions were reviewed before and after routine testing training, and ANC clients were interviewed. RESULTS: After routine testing started, the percentage of all HIV-infected women delivering in the regional hospital who knew their HIV status increased from 47% to 78% and the percentage receiving PMTCT interventions increased from 29% to 56%. ANC attendance and the percentage of HIV-positive women who disclosed their HIV status to others remained stable. Interviews indicated that ANC clients supported the policy. CONCLUSIONS: Routine HIV testing was more accepted than voluntary testing in this setting and led to substantial increases in the uptake of testing and PMTCT interventions without detectable adverse consequences. Routine testing in other settings may strengthen HIV care and prevention efforts.  相似文献   

10.
Drawing on an analysis by Pritchett et al of the "techniques of persistent implementation failure" common across many development sectors, this commentary suggests that health systems attempting to integrate maternal health and HIV services may need to contend with a profound clash of organizational cultures. For decades, countries have been pressed to implement global "best practices" in maternal health without attention to the systemic capacity building needed to support complex interventions. The result is often form without function, a kind of "isomorphic mimicry" in which policy documents and program plans that meet global standards ultimately camouflage deep dysfunction in the actual delivery of lifesaving services. As a result, the organizational culture that surrounds maternal health services often stands in stark contrast to the can-do style that has characterized the rapid, well-resourced deployment of HIV services over the last few years. As integration proceeds, the resolution of this clash may hold the seeds of a much-needed transformation of implementation support practices in both fields.  相似文献   

11.
Recent advances in science, program, and policy could better position the nation to achieve its vision of the USA as a place where new HIV infections are rare. Among these developments, passage of the Patient Protection and Affordable Care Act (ACA) in 2010 may prove particularly important, as the health system transformations it has launched offer a supportive foundation for realizing the potential of other advances, both within and beyond the clinical arena. This article summarizes opportunities to expand access to high-impact HIV prevention interventions under the ACA, examines whether available evidence indicates that these opportunities are being realized, and considers potential challenges to further gains for HIV prevention in an era of health reform. This article also highlights the new roles that HIV prevention programs and providers may assume in a health system no longer defined by fragmentation among public health, medical care, and community service providers.  相似文献   

12.

Background

Numbers of young people with perinatally acquired HIV is growing significantly. With antiretroviral drugs, children who get infected at birth with HIV have an opportunity to graduate into adolescence and adulthood. This achievement notwithstanding, new challenges have emerged in their care and support needs. The most dynamic being, their sexual and reproductive health needs and rights (SRHR).

Objectives

This paper aimed at establishing the gaps at policy, program and health systems level as far as addressing sexual and reproductive health needs of young people who have lived with HIV since infancy is concerned.

Methods

This paper is based on a desk review of existing literature on sexual and reproductive health needs and rights of young positives.

Results

The results indicate young positives are sexually active and are engaging in risky sexual encounters. Yet, existing policies, programs and services are inadequate in responding to their sexual and reproductive health needs and rights.

Conclusion

Against these findings, it is important, that policies specifically targeting this subgroup are formulated and to make sure that such policies result in programs and services that are youth friendly. It is also important that integration of Sexual Reproductive Health (SRH) and HIV services is prioritized.  相似文献   

13.
Background: Over 90% of infant acquired immunodeficiency syndrome (AIDS) cases have been through mother-to-child transmission (MTCT) of human immunodeficiency virus (HIV). Consequent to this, prevention of mother-to-child transmission (PMTCT) programs have instituted as dual purposes for prevention of HIV transmission from mother to child and enrollment of infected pregnant women and their families into antiretroviral treatment (ART) program. However, there are still some breakthrough infections and challenges. Therefore, this study was designed to assess risk of HIV transmission among HIV-exposed infants on follow-up at a PMTCT clinic in an antiretroviral (ARV) referral health facility in southwest Nigeria.

Methods: A cohort of 60 purposively recruited consenting pregnant women referred to PMTCT HIV clinic in Ibadan, southwest Nigeria were enrolled and followed up for 1 year (2015–2016). A well-structured epidemiological questionnaire was used to capture all relevant information. Data were then analyzed by SPSS version 21 (St. Louis, MO, USA), while bivariate and multivariate analyses were used to identify associations.

Results: A total of 44 mothers and their infants were available for the analysis with an attrition rate of 26.7%. The mean age of mothers at enrollment to follow-up was 32.9 years (SD = 4.2 years). Two (4.5%, 95% CI: 7.2–12.3%) of the infants were HIV positive by DNA PCR test. There was no linear relationship between age of the mothers with CD4 count or viral load both before and after delivery but there was a significant positive relationship with year on ARV (= 0.318, 95% CI: 0.024–0.562). Infants of rural dwelling mothers were at 3.39 (adjusted odds ratio (AOR) = 3.39, 95% CI: 1.32, 2.29) times higher risk of vertical HIV transmission compared to those of urban dwelling mothers. Infants delivered at home had 2.61(AOR = 2.61, 95% CI: 1.59, 7.91) times higher risk of MTCT compared to those delivered at health institution. Mixed feeding was also another important predictor in which the risk of MTCT was about two (AOR = 2.21, 95% CI: 0.68, 9.97) times higher compared to exclusive breastfeeding.

Conclusions: There was a high risk of MTCT of HIV among exposed infants on follow-up at the PMTCT clinic of Adeoyo Maternity Teaching referral hospital. Our findings will assist health policy makers in providing important information capable of enhancing assurance HIV control in such population and in raising the standard of PMTCT program in Nigeria.  相似文献   


14.
Implementation science is the scientific study of methods to promote the integration of research findings and evidence-based interventions into health care policy and practice and hence to improve the quality and effectiveness of health services and care. Implementation science is distinguished from monitoring and evaluation by its emphasis on the use of the scientific method. The origins of implementation science include operations research, industrial engineering, and management science. Today, implementation science encompasses a broader range of methods and skills including decision science and operations research, health systems research, health outcomes research, health and behavioral economics, epidemiology, statistics, organization and management science, finance, policy analysis, anthropology, sociology, and ethics. Examples of implementation science research are presented for HIV prevention (prevention of mother-to-child transmission of HIV, male circumcision) and HIV and drug use (syringe distribution, treating drug users with antiretroviral therapy and opioid substitution therapy). For implementation science to become an established field in HIV/AIDS research, there needs to be better coordination between funders of research and funders of program delivery and greater consensus on scientific research approaches and standards of evidence.  相似文献   

15.
OBJECTIVE: In Africa, prevention of mother-to-child HIV transmission (PMTCT) programs are hindered by limited uptake by women and their male partners. Routine HIV counseling and testing (HCT) during labor has been proposed as a way to increase PMTCT uptake, but little data exist on the impact of such intervention in a programmatic context in Africa. DESIGN AND METHODS: In May 2004, PMTCT services were established in the antenatal clinic (ANC) of a 200-bed hospital in rural Uganda; in December 2004, ANC PMTCT services became opt-out, and routine opt-out intrapartum HCT was established in the maternity ward. We compared acceptability, feasibility, and uptake of maternity and ANC PMTCT services between December 2004 and September 2005. RESULTS: HCT acceptance was 97% (3591/3741) among women and 97% (104/107) among accompanying men in the ANC and 86% (522/605) among women and 98% (176/180) among their male partners in the maternity. Thirty-four women were found to be HIV seropositive through intrapartum testing, representing an 12% (34/278) increase in HIV infection detection. Of these, 14 received their result and nevirapine before delivery. The percentage of women discharged from the maternity ward with documented HIV status increased from 39% (480/1235) to 88% (1395/1594) over the period. Only 2.8% undocumented women had their male partners tested in the ANC in contrast to 25% in the maternity ward. Of all male partners who presented to either unit, only 48% (51/107) came together and were counseled with their wife in the ANC, as compared with 72% (130/180) in the maternity ward. Couples counseled together represented 2.8% of all persons tested in the ANC, as compared with 37% of all persons tested in the maternity ward. CONCLUSION: Intrapartum HCT may be an acceptable and feasible way to increase individual and couple participation in PMTCT interventions.  相似文献   

16.
In Africa, prevention of mother-to-child transmission of HIV (PMTCT) with antiretrovirals is becoming a key component of the response to the pandemic. Toxicity issues remain however a concern and require careful monitoring. We report here three observations of mild neurological deterioration among children for whom a diagnosis of mitochondrial dysfunction was considered possible. These children were identified within a PMTCT research program (ANRS 049) conducted in Abidjan, C?te d'Ivoire, and evaluating a short regimen of maternal zidovudine monotherapy for PMTCT of HIV type 1. Maternal HIV-1 infection was diagnosed during pregnancy before enrolment in the randomised trial (two cases) or in the subsequent open cohort (one case). These three women had been allocated to the ZDV group and had no particular medical history. Pregnancy check-up was negative except the diagnosis of HIV-1 infection. The three children were diagnosed as uninfected by HIV-1. Symptoms developed by the age of six months (two cases) and 13 months (one case): growth failure, anthropometric abnormalities, impaired psycho-motor development, generalised and repeated seizures. The evolution of these three HIV-uninfected children was favourable after 12 to 18 months. The transient nature of these abnormalities is compatible with mild complications of mitochondrial dysfunction. We conclude however that the anticipated benefits of PMTCT with antiretrovirals in Africa greatly outweigh the potential risks and should not lead to reconsider their public health interest  相似文献   

17.

Background

Prevention of mother-to-child transmission of HIV (PMTCT) is a major public health challenge in Zimbabwe.

Methods

Using trained peer counselors, a nevirapine (NVP)-based PMTCT program was implemented as part of routine care in urban antenatal clinics.

Results

Between October 2002 and December 2004, a total of 19,279 women presented for antenatal care. Of these, 18,817 (98%) underwent pre-test counseling; 10,513 (56%) accepted HIV testing, of whom 1986 (19%) were HIV-infected. Overall, 9696 (92%) of women collected results and received individual post-test counseling. Only 288 men opted for HIV testing. Of the 1807 HIV-infected women who received posttest counseling, 1387 (77%) collected NVP tablet and 727 (40%) delivered at the clinics. Of the 1986 HIV-infected women, 691 (35%) received NVPsd at onset of labor, and 615 (31%) infants received NVPsd. Of the 727 HIV-infected women who delivered in the clinics, only 396 women returned to the clinic with their infants for the 6-week follow-up visit; of these mothers, 258 (59%) joined support groups and 234 (53%) opted for contraception. By the end of the study period, 209 (53%) of mother-infant pairs (n = 396) came to the clinic for at least 3 follow-up visits.

Conclusion

Despite considerable challenges and limited resources, it was feasible to implement a PMTCT program using peer counselors in urban clinics in Zimbabwe.  相似文献   

18.

Background  

HIV remains responsible for an estimated 40% of mortality in South African pregnant women and their children. To address these avoidable deaths, eligibility criteria for antiretroviral therapy (ART) in pregnant women were revised in 2010 to enhance ART coverage. With greater availability of HIV services in public health settings and increasing government attention to poor maternal-child health outcomes, this study used the patient's journey through the continuum of maternal and child care as a framework to track and document women's experiences of accessing ART and prevention of mother-to-child HIV transmission (PMTCT) programmes in the Eastern Cape (three peri-urban facilities) and Gauteng provinces (one academic hospital).  相似文献   

19.
Mucosal innate immunity as a determinant of HIV susceptibility   总被引:1,自引:0,他引:1  
Most human immunodeficiency virus (HIV) is acquired during sex, across a mucosal membrane. Despite many advances in our understanding of HIV pathogenesis, the initial events during mucosal transmission have been poorly characterized, and a better understanding of these events will probably be a key to the development of successful microbicide(s) and/or a preventative HIV vaccine. While a vast majority of mucosal HIV exposures do not result in productive infection, implying that innate mucosal immune defenses are highly protective, failure of these mucosal defenses resulted in over 3 million new HIV infections in 2006. We review recent findings regarding HIV mucosal immunopathogenesis, emphasizing the importance of innate immunity in natural protection from infection, and examine how natural or induced perturbations in the mucosal innate system may underpin HIV transmission. Given the great challenges to the development of HIV microbicides and vaccines, identification and enhancement of 'natural' innate immune defenses present attractive avenues for development of safe, non-toxic microbicides.  相似文献   

20.
The aim of this study was as part of a baseline assessment in PMTCT in the traditional health sector: a) to determine the views of women who have used the services of traditional practitioners before, during and/or after pregnancy, and b) to conduct formative research with traditional health practitioners (THPs), i.e. herbalists, diviners and traditional birth attendants (TBAs) on HIV, pregnancy care, delivery and infant care. The sample included a) 181 postnatal care clients with a child less than 12 months interviewed at postnatal clinic visits from 20 primary care clinics in the Kouga Local Service Area (LSA), Cacadu district, Eastern Cape, and b) 54 traditional birth attendants (TBAs) and 47 herbalists and/or diviners were interviewed from Kouga LSA. Results showed that THP (in particular TBAs and to a certain extend herbalists/diviners) play a significant role in pregnancy and postnatal care, and also with the assistance of delivery. Certain HIV risk practices were reported on the practice of TBAs. THPs also seem to have some role in infant feeding and family planning. THPs should be trained in optimising their services in pregnancy and postnatal care, and preparation for health facility delivery. In addition, they should be trained on HIV risk practices, HIV/AIDS, HIV prevention including PMTCT, infant feeding and family planning.  相似文献   

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