Economic analysis of an educational human security model in southwestern bateyes of the Dominican Republic / Análisis económico de un modelo educativo de seguridad humana en los bateyes del suroeste de la República Dominicana

Objetivos: realizar un análisis económico para evaluar los costos de una intervención educativa, utilizando los principios de un modelo de seguridad humana en Bateyes del suroeste de la República Dominicana. Métodos: se consideraron cuatro recursos de intervención, incluyendo la capacitación del personal, los incentivos mensuales, la supervisión de las actividades de campo y el costo total asociado al tratamiento anual de la diarrea aguda. El gasto se comparó entre el programa estándar de atención (Batey Control) y la intervención con el modelo de seguridad humana (Batey Caso). Resultados: el ahorro del costo total anual para el Ministerio de Salud de República Dominicana asociado con la reducción de la incidencia de episodios de diarrea aguda fue de US$252,399. Si se extrapolan a los 300 Bateyes de República Dominicana, se podría ahorrar aproximadamente US$75 millones en prevención de enfermedades infecciosas. Conclusiones: el modelo de seguridad humana luce ser un método eficaz para mejorar el conocimiento sobre la prevención de enfermedades y aumentar el empoderamiento de la comunidad para la movilización de recursos. Aplicada a otros entornos, la intervención podría tener una incidencia beneficiosa en las poblaciones de refugiados e indocumentados bajo el impacto de la violencia estructural.

Objectives: To conduct an economic analysis to evaluate the costs of an educational intervention, using the human security model, and potential sources of economic benefits, in Southwestern Bateyes in the Dominican Republic. Methods: Four intervention resources were considered, including staff training, monthly incentives, supervision of field activities, and total cost associated with annual treatment for acute diarrhea. The expenditure was compared between the standard program of care and the intervention using the human security model. Results: The total annual cost saving to the Dominican Republic Ministry of Health, associated with reducing the incidence of acute diarrhea episodes, was US$252,399. If this is extrapolated to the 300 Bateyes of the Dominican Republic, the Ministry of Health could save approximately US$75 million in infectious disease prevention by implementing this intervention model in these isolated rural communities. Conclusions: The educational intervention, which incorporated a human security approach, appeared to be an effective method to enhance knowledge about disease prevention and to increase empathy among community members for resource mobilization and local empowerment. Applied to other settings, the intervention could have a beneficial impact on refugee and undocumented populations under the

Delivering integrated care after sexual violence in the Democratic Republic of the Congo.

In the eastern Democratic Republic of the Congo, ongoing armed conflict increases the incidence of gender-based violence (GBV) and presents a distinct and major barrier to care delivery for all survivors of GBV. A specific challenge is providing emergency contraception, HIV prophylaxis and treatment for sexually transmitted infections to all survivors within 72 hours of violence. To address the multiple barriers to providing this time-sensitive medical care, Global Strategies and Panzi Hospital implemented the Prevention Pack Program. The Prevention Pack is a pre-packaged post-rape medical kit containing antiretroviral post-exposure prophylaxis, antibiotics for treatment of sexually transmitted infections and emergency contraception. The Prevention Pack Program combines community sensitisation about post-rape medical care with the provision of Prevention Packs and the implementation of a cloud-based and Global Positioning System (GPS)-enabled inventory management system. The Panzi Hospital gender-based violence team implemented the Prevention Pack Program at Panzi Hospital and 12 rural clinics in the South Kivu Province. The data manager took GPS coordinates of each site, provided an initial stock of Prevention Packs and then called all sites daily to determine demand for post-rape care and Prevention Pack consumption. Inventory data were entered into the GPS-enabled cloud-based inventory management system. Project personnel used the consumption rate, trends and geolocation of sites to guide Prevention Pack restocking strategy. Between 2013 and 2017, a total of 8206 individuals presented for care following rape at the study sites. Of the 1414 individuals who presented in the rural areas, 1211 (85.6%) did so within the first 72 hours of reported rape. Care was delivered continuously and without a single stockout of medication across all sites. The Prevention Pack Program provided timely and consistent access to emergency contraception, HIV prophylaxis and treatment for sexually transmitted infections for rape survivors in the eastern Democratic Republic of the Congo.

Low-cost HIV-1 diagnosis and quantification in dried blood spots by real time PCR.

BACKGROUND: Rapid and cost-effective methods for HIV-1 diagnosis and viral load monitoring would greatly enhance the clinical management of HIV-1 infected adults and children in limited-resource settings. Recent recommendations to treat perinatally infected infants within the first year of life are feasible only if early diagnosis is routinely available. Dried blood spots (DBS) on filter paper are an easy and convenient way to collect and transport blood samples. A rapid and cost effective method to diagnose and quantify HIV-1 from DBS is urgently needed to facilitate early diagnosis of HIV-1 infection and monitoring of antiretroviral therapy. METHODS AND FINDINGS: We have developed a real-time LightCycler (rtLC) PCR assay to detect and quantify HIV-1 from DBS. HIV-1 RNA extracted from DBS was amplified in a one-step, single-tube system using primers specific for long-terminal repeat sequences that are conserved across all HIV-1 clades. SYBR Green dye was used to quantify PCR amplicons and HIV-1 RNA copy numbers were determined from a standard curve generated using serially diluted known copies of HIV-1 RNA. This assay detected samples across clades, has a dynamic range of 5 log(10), and %CV <8% up to 4 log(10) dilution. Plasma HIV-1 RNA copy numbers obtained using this method correlated well with the Roche Ultrasensitive (r = 0.91) and branched DNA (r = 0.89) assays. The lower limit of detection (95%) was estimated to be 136 copies. The rtLC DBS assay was 2.5 fold rapid as well as 40-fold cheaper when compared to commercial assays. Adaptation of the assay into other real-time systems demonstrated similar performance. CONCLUSIONS: The accuracy, reliability, genotype inclusivity and affordability, along with the small volumes of blood required for the assay suggest that the rtLC DBS assay will be useful for early diagnosis and monitoring of pediatric HIV-1 infection in resource-limited settings.

Is the "3 by 5" initiative the best approach to tackling the HIV pandemic?

BACKGROUND TO THE DEBATE: The World Health Organization (WHO) and its partners aim to treat 3 million people infected with HIV in poor and middle income countries with antiretroviral treatment by the end of 2005. The ambitious "3 by 5" initiative has had its supporters and its critics since its announcement in 2002.

Preventing mother-to-child HIV transmission in a developing country: the Dominican Republic experience.

Transmission of HIV in the Dominican Republic occurs primarily through heterosexual contact. As part of a continuing strategy to prevent and contain the spread of HIV infection, the Ministry of Health of the Dominican Republic established an integrated package of interventions to reduce HIV mother-to-child transmission that was initiated on May 15, 2000. The program was designed to be implemented in 3 phases. The 1st phase included 4 mother and child hospitals; the 2nd phase included 8 mother and child health institutions in Santo Domingo, the capital of the Dominican Republic, and 7 additional mother and child hospitals. The 3rd phase will include the remaining 12 mother and child health care institutions of the Dominican Republic. Evaluation of the 1st year of this program, involving 8 hospitals and >40000 pregnant women, identified specific benefits and limitations. Low numbers of voluntary counseling sessions (6528/42666 = 28%) and inadequate number of HIV rapid tests (23067/42666 = 54%) were the 2 main obstacles encountered. From the 23067 pregnant women tested, 581 (2.5%) were HIV positive. Advantageous aspects included the successful administration of antiretroviral treatment to 89% (164/185) of the mothers and 98% (183/186) of the children. Cesarean section was performed in 67% (124/185) of the HIV-positive pregnant women, and infant formula was dispensed to 47% (87/186) of all cases. These findings demonstrate the feasibility of implementing a large-scale program to prevent mother-to-child transmission in a developing country.

Association between maternal and infant class I and II HLA alleles and of their concordance with the risk of perinatal HIV type 1 transmission.

We aimed to investigate the influence of class I and class II HLA specificities and of the concordance between maternal and infant HLA on vertical HIV-1 transmission. HLA typing of samples from mothers and infants enrolled in the Ariel study, a perinatal HIV-1 transmission cohort including 203 mother-infant pairs, was performed by serological and molecular methods. HLA effects were evaluated alone and by multivariate modeling considering also other known predictors of perinatal HIV-1 transmission (maternal viral load, antiretroviral therapy, duration of rupture of membranes, and histological chorioamnionitis). Modest associations were seen with specific HLA markers (increased risk with infant B67 and B58 and maternal DR1; decreased risk with maternal B12), but these were not statistically significant after adjusting for multiple comparisons. Mother-infant concordance at any class I locus was a strong predictor of transmission (odds ratio [OR], 4.16; p = 0.028). Transmission was not associated with class II concordance. Class I HLA concordance retained its importance after adjusting for maternal viral load, antiretroviral therapy, duration of rupture of membranes or histological chorioamnionitis. In multivariate modeling, only class I concordance (OR, 3.59; p = 0.069) and chorioamnionitis (OR, 3.79; p = 0.030) were retained as independent predictors of transmission. HLA alleles, and in particular the class I concordance between maternal and neonatal HLA, may regulate the risk of perinatal HIV-1 transmission.