RESUMEN

BACKGROUND: Studies comparing the frequency of different mental health conditions across different settings and evaluating their association with parental participation in newborn care are lacking. We aimed at evaluating the frequency of parental stress, anxiety and depression, along with the level of participation in newborn care, among parents of newborns in Italy, Brazil and Tanzania. METHODS: Parental stress, anxiety, depression and participation in care were assessed prospectively in parents of newborns in eight neonatal intensive care units (NICUs) utilising: the Parental Stressor Scale in NICU (PSS:NICU); the Edinburgh Postnatal Depression Scale (EPDS) and EPDS-Anxiety subscale (EPDS-A); the Index of Parental Participation in NICU (IPP-NICU). Univariate and multivariate analyses were conducted. RESULTS: Study outcomes were assessed on 742 parents (Brazil=327, Italy=191, Tanzania=224). Observed scores suggested a very high frequency of stress, anxiety and depression, with an overall estimated frequency of any of the mental health condition of 65.1%, 52.9% and 58.0% in Brazil, Italy, Tanzania, respectively (p<0.001). EPDS scores indicating depression (cut-off: ≥13 for Brazil and Tanzania, ≥12 for Italy) were significantly more frequent in Tanzania (52.3%) when compared with either Brazil (35.8%) and Italy (33.3%) (p<0.001). Parental participation in care was also significantly higher in Tanzania (median IPP-NICU=24) than in the other two countries (median=21 for Brazil, 18 for Italy, p<0.001). Severe stress (PSS:NICU ≥4) was significantly more frequently reported in Brazil (22.6%), compared with Italy (4.7%) and Tanzania (0%, p<0.001). Factors independently associated with either parental stress, anxiety or depression varied by country, and a significant association with parental participation in care was lacking. CONCLUSIONS: Study findings suggest that parental stress, anxiety and depression are extremely frequent in NICUs in all countries despite diversity in the setting, and requiring immediate action. Further studies should explore the appropriate level of parental participation in care in different settings.

Asunto(s)

Ansiedad , Depresión , Unidades de Cuidado Intensivo Neonatal , Padres , Estrés Psicológico , Humanos , Unidades de Cuidado Intensivo Neonatal/estadística & datos numéricos , Estudios Prospectivos , Femenino , Masculino , Estrés Psicológico/epidemiología , Ansiedad/epidemiología , Ansiedad/psicología , Recién Nacido , Depresión/epidemiología , Depresión/psicología , Italia/epidemiología , Adulto , Padres/psicología , Tanzanía/epidemiología , Brasil/epidemiología , Escalas de Valoración Psiquiátrica

RESUMEN

OBJECTIVE: To derive and validate internally a novel risk assessment tool to identify young children at risk for all-cause mortality ≤60 days of discharge from hospitals in sub-Saharan Africa. STUDY DESIGN: We performed a prospective observational cohort study of children aged 1-59 months discharged from Muhimbili National Hospital in Dar es Salaam, Tanzania and John F. Kennedy Medical Center in Monrovia, Liberia (2019-2022). Caregivers received telephone calls up to 60 days after discharge to ascertain participant vital status. We collected socioeconomic, demographic, clinical, and anthropometric data during hospitalization. Candidate variables with P < .20 in bivariate analyses were included in a multivariable logistic regression model with best subset selection to identify risk factors for the outcome. We internally validated our tool using bootstrapping with 500 repetitions. RESULTS: There were 1933 young children enrolled in the study. The median (IQR) age was 11 (4, 23) months and 58.7% were males. In total, 67 (3.5%) died during follow-up. Ten variables contributed to our tool (total possible score 82). Cancer (aOR 10.6, 95% CI 2.58, 34.6), pedal edema (aOR 6.94, 95% CI 1.69, 22.6), and leaving against medical advice (aOR 6.46, 95% CI 2.46, 15.3) were most predictive of post-discharge mortality. Our risk assessment tool demonstrated good discriminatory value (optimism corrected area under the receiver operating characteristic curve 0.77), high precision, and sufficient calibration. CONCLUSIONS: After validation, this tool may be used to identify young children at risk for post-discharge mortality to direct resources for follow-up of high-risk children.

Asunto(s)

Alta del Paciente , Humanos , Tanzanía/epidemiología , Lactante , Masculino , Femenino , Medición de Riesgo/métodos , Preescolar , Estudios Prospectivos , Liberia/epidemiología , Alta del Paciente/estadística & datos numéricos , Factores de Riesgo , Mortalidad del Niño

RESUMEN

BACKGROUND: The Global Programme to Eliminate Lymphatic Filariasis (GPELF) aims to reduce and maintain infection levels through mass drug administration (MDA), but there is evidence of ongoing transmission after MDA in areas where Culex mosquitoes are the main transmission vector, suggesting that a more stringent criterion is required for MDA decision making in these settings. METHODS: We use a transmission model to investigate how a lower prevalence threshold (<1% antigenemia [Ag] prevalence compared with <2% Ag prevalence) for MDA decision making would affect the probability of local elimination, health outcomes, the number of MDA rounds, including restarts, and program costs associated with MDA and surveys across different scenarios. To determine the cost-effectiveness of switching to a lower threshold, we simulated 65% and 80% MDA coverage of the total population for different willingness to pay per disability-adjusted life-year averted for India ($446.07), Tanzania ($389.83), and Haiti ($219.84). RESULTS: Our results suggest that with a lower Ag threshold, there is a small proportion of simulations where extra rounds are required to reach the target, but this also reduces the need to restart MDA later in the program. For 80% coverage, the lower threshold is cost-effective across all baseline prevalences for India, Tanzania, and Haiti. For 65% MDA coverage, the lower threshold is not cost-effective due to additional MDA rounds, although it increases the probability of local elimination. Valuing the benefits of elimination to align with the GPELF goals, we find that a willingness to pay per capita government expenditure of approximately $1000-$4000 for 1% increase in the probability of local elimination would be required to make a lower threshold cost-effective. CONCLUSIONS: Lower Ag thresholds for stopping MDAs generally mean a higher probability of local elimination, reducing long-term costs and health impacts. However, they may also lead to an increased number of MDA rounds required to reach the lower threshold and, therefore, increased short-term costs. Collectively, our analyses highlight that lower target Ag thresholds have the potential to assist programs in achieving lymphatic filariasis goals.

Asunto(s)

Análisis Costo-Beneficio , Filariasis Linfática , Administración Masiva de Medicamentos , Filariasis Linfática/prevención & control , Filariasis Linfática/epidemiología , Filariasis Linfática/economía , Humanos , Administración Masiva de Medicamentos/economía , Haití/epidemiología , Tanzanía/epidemiología , Prevalencia , India/epidemiología , Animales , Erradicación de la Enfermedad/economía , Erradicación de la Enfermedad/métodos , Filaricidas/uso terapéutico , Filaricidas/administración & dosificación , Filaricidas/economía , Antígenos Helmínticos/sangre , Culex

RESUMEN

BACKGROUND: Maternal HIV infection remains a significant global health concern with potential repercussions on perinatal outcomes. Emphasis on early intervention to improve peri- and postnatal outcomes in infected mothers and infants is a valid therapeutic concern. OBJECTIVES: To comprehensively analyze perinatal outcomes associated with maternal HIV infection and evaluate adverse effects associated with the HIV infection in the existing literature. SEARCH STRATEGY: A comprehensive search of PubMed, MEDLINE, and Google Scholar was conducted from 2013 to September 2023, using relevant MeSH terms. SELECTION CRITERIA: The included studies encompassed original studies, cross-sectional, prospective, retrospective studies and observational studies focused on perinatal outcomes in the context of maternal HIV infection. DATA COLLECTION AND ANALYSIS: The selected studies underwent rigorous data collection and comprehensive quality checks and adhered to the PRISMA guidelines. MAIN RESULTS: Nine eligible studies from Brazil, China, India, Malawi, Nigeria, Tanzania, the USA, and Canada were included. These studies have consistently demonstrated that maternal HIV infection is associated with adverse perinatal outcomes. The analysis revealed a higher risk of preterm birth (OR 1.57, 95% CI: 1.39-1.78), low birth weight (OR 1.33, 95% CI: 1.18-1.49), and small for gestational age (OR 1.38, 95% CI: 1.24-1.53) among infants born to mothers living with HIV. Notably, the impact of antiretroviral treatment (ART) on these outcomes varied, but maternal HIV infection remained a significant risk factor regardless of income level and geographic region. CONCLUSION: Maternal HIV infection is consistently associated with adverse perinatal outcomes, emphasizing the need for targeted interventions and improved prenatal care in pregnant women with HIV infection.

Asunto(s)

Infecciones por VIH , Complicaciones Infecciosas del Embarazo , Resultado del Embarazo , Humanos , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/complicaciones , Embarazo , Femenino , Recién Nacido , Nacimiento Prematuro/epidemiología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Recién Nacido de Bajo Peso , Brasil/epidemiología , Canadá , Recién Nacido Pequeño para la Edad Gestacional , India/epidemiología , China/epidemiología , Nigeria/epidemiología , Estados Unidos/epidemiología , Tanzanía/epidemiología , Malaui/epidemiología

RESUMEN

AIMS: To describe and compare the health system responses for type 1 diabetes in Kyrgyzstan, Mali, Peru and Tanzania. METHODS: The Rapid Assessment Protocol for Insulin Access, a multi-level assessment of the health system, was implemented in Kyrgyzstan, Mali, Peru and Tanzania using document reviews, site visits and interviews to assess the delivery of care and access to insulin. RESULTS: Despite the existence of noncommunicable or diabetes strategies and Universal Health Coverage policies including diabetes-related supplies, this has not necessarily translated into access to insulin or diabetes care for all. Insulin and related supplies were often unavailable and unaffordable. Across the four countries test strips and insulin, when paid for by the individual, represented respectively 48-82% and 25-36% of total costs. Care was mainly delivered at tertiary-level hospitals by specialists. Only Kyrgyzstan had data collection systems integrated into the Ministry of Health structure. In addition, issues with healthcare worker training and education and empowerment of people with diabetes were present in these health systems. CONCLUSIONS: People with type 1 diabetes in these countries face different barriers, including the cost of insulin and care. Given the renewed attention to diabetes on the global health agenda tailored health system responses for type 1 diabetes are needed. Insulin should be prioritized as it is the foundation of type 1 diabetes care, but other elements of care and support need to be fostered by different actors.

Asunto(s)

Diabetes Mellitus Tipo 1 , Países en Desarrollo , Diabetes Mellitus Tipo 1/epidemiología , Diabetes Mellitus Tipo 1/terapia , Humanos , Insulina/uso terapéutico , Kirguistán/epidemiología , Malí/epidemiología , Perú , Tanzanía/epidemiología

RESUMEN

BACKGROUND: The Leprosy Post-Exposure Prophylaxis (LPEP) program explored the feasibility and impact of contact tracing and the provision of single dose rifampicin (SDR) to eligible contacts of newly diagnosed leprosy patients in Brazil, India, Indonesia, Myanmar, Nepal, Sri Lanka and Tanzania. As the impact of the programme is difficult to establish in the short term, we apply mathematical modelling to predict its long-term impact on the leprosy incidence. METHODOLOGY: The individual-based model SIMCOLEP was calibrated and validated to the historic leprosy incidence data in the study areas. For each area, we assessed two scenarios: 1) continuation of existing routine activities as in 2014; and 2) routine activities combined with LPEP starting in 2015. The number of contacts per index patient screened varied from 1 to 36 between areas. Projections were made until 2040. PRINCIPAL FINDINGS: In all areas, the LPEP program increased the number of detected cases in the first year(s) of the programme as compared to the routine programme, followed by a faster reduction afterwards with increasing benefit over time. LPEP could accelerate the reduction of the leprosy incidence by up to six years as compared to the routine programme. The impact of LPEP varied by area due to differences in the number of contacts per index patient included and differences in leprosy epidemiology and routine control programme. CONCLUSIONS: The LPEP program contributes significantly to the reduction of the leprosy incidence and could potentially accelerate the interruption of transmission. It would be advisable to include contact tracing/screening and SDR in routine leprosy programmes.

Asunto(s)

Trazado de Contacto/métodos , Lepra/epidemiología , Lepra/prevención & control , Tamizaje Masivo/métodos , Prevención Primaria/métodos , Brasil , Humanos , India , Indonesia/epidemiología , Leprostáticos/uso terapéutico , Mianmar/epidemiología , Nepal/epidemiología , Profilaxis Posexposición/métodos , Rifampin/uso terapéutico , Sri Lanka/epidemiología , Tanzanía/epidemiología

RESUMEN

We conducted a pilot study to determine the effectiveness of a linkage to care intervention with social workers to improve 12-month post-hospital mortality for children in Tanzania with sickle cell disease. Comparison was done with a historical cohort. Mortality was 6.7% in the interventional cohort compared with 19.2% (adjusted Hazard Ratio, 0.26; 95% CI, 0.08-0.83).

Asunto(s)

Anemia de Células Falciformes/mortalidad , Anemia de Células Falciformes/terapia , Continuidad de la Atención al Paciente/organización & administración , Hospitalización , Mejoramiento de la Calidad/organización & administración , Servicio Social/organización & administración , Niño , Femenino , Estudios de Seguimiento , Humanos , Masculino , Proyectos Piloto , Mejoramiento de la Calidad/estadística & datos numéricos , Tanzanía/epidemiología , Resultado del Tratamiento

RESUMEN

We examined the relationship between mindfulness, mental health and HIV outcomes among female sex workers (FSW) from the Dominican Republic (DR) (n = 201) and Tanzania (n = 208) using cross-sectional survey and biologic data. We employed stratified multivariate linear and logistic regression. Depression was associated with lower odds of ART adherence in the DR (AOR 0.25, 95% CI: 0.08-0.78) and of viral suppression in Tanzania (AOR 0.49, 95% CI: 0.24-0.97). In both countries, mindfulness was associated with lower odds of moderate to severe depression (AOR 0.82, 95% CI: 0.76-0.88 for the DR; AOR 0.85, 95% CI: 0.77-0.95 for Tanzania). In the DR, mindfulness was associated with lower odds of anxiety (AOR 0.83, 95% CI: 0.77-0.89), lower HIV stigma (ß = - 0.28 per unit change, 95% CI: - 0.37 to - 0.19) and greater odds of viral suppression (AOR 1.09, 95% CI: 1.02-1.15). Findings demonstrate the potential of tailored mindfulness interventions to improve mental health and HIV outcomes among FSW.

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RESUMEN: Examinamos la relación entre la atención plena, la salud mental y los resultados del VIH entre las trabajadoras sexuales (TRSX) de la República Dominicana (RD) (n = 201) y Tanzania (n = 208) utilizando una encuesta transversal y datos biológicos. Empleamos regresión lineal multivariada estratificada y regresión logística. La depresión se asoció con menores probabilidades de adherencia al terapia antiretroviral (TAR) en la República Dominicana (AOR 0.25, IC del 95%: 0.08­0.78) y de supresión viral en Tanzania (AOR 0.49, IC del 95%: 0.24­0.97). En ambos países, la atención plena se asoció con menores probabilidades de depresión moderada a grave (AOR 0.82, IC del 95%: 0.76­0.88 para la República Dominicana; AOR 0.85, IC del 95%: 0.77­0.95 para Tanzania). En la República Dominicana, la atención plena se asoció con menores probabilidades de ansiedad (AOR 0.83, IC del 95%: 0.77­0.89), menor estigma del VIH (ß = − 0.28 por unidad de cambio, IC del 95%: − 0.37 to − 0.19) y mayores probabilidades de supresión viral (AOR 1.09, 95% CI: 1.02­1.15). Los hallazgos demuestran el potencial de las intervenciones de atención plena para mejorar la salud mental y los resultados del VIH entre las TRSX.

Asunto(s)

Infecciones por VIH , Atención Plena , Trabajadores Sexuales , Estudios Transversales , República Dominicana/epidemiología , Femenino , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Humanos , Salud Mental , Tanzanía/epidemiología

RESUMEN

The Leprosy Post-Exposure Prophylaxis (LPEP) program explored the feasibility and impact of contact tracing and the provision of SDR to eligible contacts of newly diagnosed leprosy patients in states or districts of Brazil, India, Indonesia, Myanmar, Nepal, Sri Lanka and Tanzania. This study investigated the long-term impact of the LPEP program on the leprosy new case detection rate (NCDR). Our results show that LPEP could reduce the NCDR beyond the impact of the routine leprosy control programme and that many new cases could be prevented. The benefit of LPEP increases gradually over time. LPEP could accelerate the time of reaching predicted NCDR levels of 2040 under routine program by up to six years. Furthermore, we highlighted how the impact varies between countries due to differences in the number of contacts per index patient screened and differences in leprosy epidemiology and national control programme. Generally, including both household contacts and neighbours (> 20 contacts per index patient) would yield the highest impact.

Asunto(s)

Humanos , Prevención Primaria/métodos , Trazado de Contacto/métodos , Profilaxis Posexposición , Lepra/prevención & control , Lepra/epidemiología , Rifampin/uso terapéutico , Sri Lanka/epidemiología , Tanzanía/epidemiología , Brasil , Tamizaje Masivo , Mianmar/epidemiología , India , Indonesia/epidemiología , Nepal/epidemiología

RESUMEN

OBJECTIVE: Female sex workers (FSW) have increased risk of HIV infection. Antiretroviral treatment (ART) can improve HIV outcomes and prevent HIV transmission. We analyzed antiretroviral (ARV) drug use and HIV drug resistance among HIV-positive FSW in the Dominican Republic and Tanzania. METHODS: Plasma samples collected at study entry with viral loads >1,000 copies/mL were tested for ARV drugs and HIV drug resistance. ARV drug testing was performed using a qualitative assay that detects 22 ARV drugs in five classes. HIV genotyping was performed using the ViroSeq HIV-1 Genotyping System. Phylogenetic analyses were performed to determine HIV subtype and assess transmission clusters. RESULTS: Among 410 FSW, 144 (35.1%) had viral loads >1,000 copies/mL (DR: n = 50; Tanzania: n = 94). ARV drugs were detected in 36 (25.0%) of 144 samples. HIV genotyping results were obtained for 138 (95.8%) cases. No transmission clusters were observed in either country. HIV drug resistance was detected in 54 (39.1%) of 138 samples (31/35 [88.6%] with drugs detected; 23/103 [22.3%] without drugs detected); 29/138 (21.0%) had multi-class resistance (MCR). None with MCR had integrase strand transfer inhibitor resistance. In eight cases, one or more ARV drug was detected without corresponding resistance mutations; those women were at risk of acquiring additional drug resistance. Using multivariate logistic regression, resistance was associated with ARV drug detection (p<0.001), self-reported ART (full adherence [p = 0.034]; partial adherence [p<0.001]), and duration of HIV infection (p = 0.013). CONCLUSIONS: In this cohort, many women were on ART, but were not virally suppressed. High levels of HIV drug resistance, including MCR, were observed. Resistance was associated with detection of ARV drugs, self-report of ART with full or partial adherence, and duration of HIV infection. These findings highlight the need for better HIV care among FSW to improve their health, reduce HIV drug resistance, and decrease risk of transmission to others.

Asunto(s)

Farmacorresistencia Viral/efectos de los fármacos , Infecciones por VIH/tratamiento farmacológico , VIH-1/genética , Adulto , Fármacos Anti-VIH/administración & dosificación , Fármacos Anti-VIH/efectos adversos , Terapia Antirretroviral Altamente Activa/efectos adversos , Estudios de Cohortes , República Dominicana/epidemiología , Farmacorresistencia Viral/genética , Femenino , Genotipo , Infecciones por VIH/genética , Infecciones por VIH/virología , VIH-1/efectos de los fármacos , VIH-1/patogenicidad , Humanos , Filogenia , Trabajadores Sexuales , Tanzanía/epidemiología , Carga Viral/efectos de los fármacos , Carga Viral/genética , Adulto Joven

RESUMEN

SUMMARY: The Canadian Network for International Surgery (CNIS) hosted a workshop in May of 2020 with a goal of critically evaluating Trauma Team Training courses. The workshop was held virtually because of the coronavirus disease 2019 (COVID-19) pandemic. Twenty-three participants attended from 8 countries: Canada, Guyana, Kenya, Nigeria, Switzerland, Tanzania, Uganda and the United States. More participants were able to attend the virtual meeting than the traditional in-person meetings. Web-based videoconference software was used, participants presented prerecorded PowerPoint videos, and questions were raised using a written chat. The review proved successful, with discussions and recommendations for improvements surrounding course quality, lecture content, skills sessions, curriculum variations and clinical practical scenarios. The CNIS's successful experience conducting an online curriculum review involving international participants may prove useful to others proceeding with collaborative projects during the COVID-19 pandemic.

Asunto(s)

Congresos como Asunto/organización & administración , Infecciones por Coronavirus/prevención & control , Curriculum , Cirugía General/educación , Cooperación Internacional , Pandemias/prevención & control , Neumonía Viral/prevención & control , Betacoronavirus/patogenicidad , COVID-19 , Canadá/epidemiología , Congresos como Asunto/normas , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/transmisión , Infecciones por Coronavirus/virología , Cirugía General/métodos , Guyana/epidemiología , Humanos , Control de Infecciones/organización & administración , Control de Infecciones/normas , Kenia/epidemiología , Nigeria/epidemiología , Neumonía Viral/epidemiología , Neumonía Viral/transmisión , Neumonía Viral/virología , SARS-CoV-2 , Suiza/epidemiología , Tanzanía/epidemiología , Uganda/epidemiología , Estados Unidos/epidemiología , Comunicación por Videoconferencia/organización & administración , Comunicación por Videoconferencia/normas , Heridas y Lesiones/cirugía

RESUMEN

BACKGROUND: Efforts to control soil-transmitted helminth (STH) infections have intensified over the past decade. Field-survey data on STH prevalence, infection intensity and drug efficacy is necessary to guide the implementation of control programs and should be of the best possible quality. METHODOLOGY: During four clinical trials designed to evaluate the efficacy of albendazole against STHs in Brazil, Ethiopia, Lao PDR and Tanzania, quality control (QC) was performed on the duplicate Kato-Katz thick smears and the data entry. We analyzed datasets following QC on both fecal egg counts (FECs) and data entry, and compared the prevalence of any STH infection and moderate-to-heavy intensity (MHI) infections and the drug efficacy against STH infections. RESULTS: Across the four study sites, a total of 450 out of 4,830 (9.3%) Kato-Katz thick smears were re-examined. Discrepancies in FECs varied from ~3% (hookworms) to ~6.5% (Ascaris lumbricoides and Trichuris trichiura). The difference in STH prevalence and prevalence of MHI infections using the datasets with and without QC of the FECs did not exceed 0.3%, except for hookworm infections in Tanzania, where we noted a 2.2 percentage point increase in MHI infections (pre-QC: 1.6% vs. post-QC: 3.8%). There was a 100% agreement in the classification of drug efficacy of albendazole against STH between the two datasets. In total, 201 of the 28,980 (0.65%) data entries that were made to digitize the FECs were different between both data-entry clerks. Nevertheless, the overall prevalence of STH, the prevalence of MHI infections and the classification of drug efficacy remained largely unaffected. CONCLUSION/SIGNIFICANCE: In these trials, where staff was informed that QC would take place, minimal changes in study outcomes were reported following QC on FECs or data entry. Nevertheless, imposing QC did reduce the number of errors. Therefore, application of QC together with proper training of the personnel and the availability of clear standard operating procedures is expected to support higher data quality.

Asunto(s)

Albendazol/uso terapéutico , Helmintiasis/tratamiento farmacológico , Control de Calidad , Ancylostomatoidea , Animales , Ascaris , Brasil/epidemiología , Ensayos Clínicos como Asunto , Etiopía/epidemiología , Heces/parasitología , Guías como Asunto , Helmintiasis/epidemiología , Helmintiasis/transmisión , Infecciones por Uncinaria/tratamiento farmacológico , Infecciones por Uncinaria/epidemiología , Humanos , Laos/epidemiología , Recuento de Huevos de Parásitos , Prevalencia , Suelo/parasitología , Tanzanía/epidemiología , Trichuris

RESUMEN

Culture-independent diagnostics have revealed a larger burden of Shigella among children in low-resource settings than previously recognized. We further characterized the epidemiology of Shigella in the first two years of life in a multisite birth cohort. We tested 41,405 diarrheal and monthly non-diarrheal stools from 1,715 children for Shigella by quantitative PCR. To assess risk factors, clinical factors related to age and culture positivity, and associations with inflammatory biomarkers, we used log-binomial regression with generalized estimating equations. The prevalence of Shigella varied from 4.9%-17.8% in non-diarrheal stools across sites, and the incidence of Shigella-attributable diarrhea was 31.8 cases (95% CI: 29.6, 34.2) per 100 child-years. The sensitivity of culture compared to qPCR was 6.6% and increased to 27.8% in Shigella-attributable dysentery. Shigella diarrhea episodes were more likely to be severe and less likely to be culture positive in younger children. Older age (RR: 1.75, 95% CI: 1.70, 1.81 per 6-month increase in age), unimproved sanitation (RR: 1.15, 95% CI: 1.03, 1.29), low maternal education (<10 years, RR: 1.14, 95% CI: 1.03, 1.26), initiating complementary foods before 3 months (RR: 1.10, 95% CI: 1.01, 1.20), and malnutrition (RR: 0.91, 95% CI: 0.88, 0.95 per unit increase in weight-for-age z-score) were risk factors for Shigella. There was a linear dose-response between Shigella quantity and myeloperoxidase concentrations. The burden of Shigella varied widely across sites, but uniformly increased through the second year of life and was associated with intestinal inflammation. Culture missed most clinically relevant cases of severe diarrhea and dysentery.

Asunto(s)

Diarrea/diagnóstico , Diarrea/epidemiología , Disentería Bacilar/diagnóstico , Disentería Bacilar/epidemiología , Bangladesh/epidemiología , Brasil/epidemiología , Diarrea/microbiología , Disentería , Disentería Bacilar/microbiología , Heces/microbiología , Femenino , Humanos , Incidencia , India/epidemiología , Lactante , Recién Nacido , Intestinos , Masculino , Nepal/epidemiología , Pakistán , Perú/epidemiología , Prevalencia , Shigella/genética , Shigella/aislamiento & purificación , Sudáfrica/epidemiología , Tanzanía/epidemiología

RESUMEN

BACKGROUND: Violence against children is a pervasive public health issue, with limited data available across multiple contexts. This study explores the rarely studied prevalence and dynamics around disclosure, reporting and help-seeking behaviours of children who ever experienced physical and/or sexual violence. METHODS: Using nationally-representative Violence Against Children Surveys in six countries: Cambodia, Haiti, Kenya, Malawi, Nigeria and Tanzania, we present descriptive statistics for prevalence of four outcomes among children aged 13-17 years: informal disclosure, knowledge of where to seek formal help, formal disclosure/help seeking and receipt of formal help. We ran country-specific multivariate logistic regressions predicting outcomes on factors at the individual, household and community levels. RESULTS: The prevalence of help-seeking behaviours ranged from 23 to 54% for informal disclosure, 16 to 28% for knowledge of where to seek formal help, under 1 to 25% for formal disclosure or help seeking, and 1 to 11% for receipt of formal help. Factors consistently correlated with promoting help-seeking behaviours included household number of adult females and absence of biological father, while those correlated with reduced help-seeking behaviours included being male and living in a female-headed household. Primary reasons for not seeking help varied by country, including self-blame, apathy and not needing or wanting services. CONCLUSIONS: Across countries examined, help-seeking and receipt of formal services is low for children experiencing physical and/or sexual violence, with few consistent factors identified which facilitated help-seeking. Further understanding of help seeking, alongside improved data quality and availability will aid prevention responses, including the ability to assist child survivors in a timely manner.

Asunto(s)

Salud Infantil/estadística & datos numéricos , Revelación/estadística & datos numéricos , Sobrevivientes/psicología , Violencia/psicología , Adolescente , Cambodia/epidemiología , Niño , Femenino , Haití/epidemiología , Humanos , Kenia/epidemiología , Modelos Logísticos , Malaui , Masculino , Prevalencia , Delitos Sexuales/psicología , Encuestas y Cuestionarios , Sobrevivientes/estadística & datos numéricos , Tanzanía/epidemiología , Violencia/prevención & control

RESUMEN

The Schistosomiasis Consortium for Operational Research and Evaluation (SCORE) was funded in 2008 to conduct research that would support country schistosomiasis control programs. As schistosomiasis prevalence decreases in many places and elimination is increasingly within reach, a sensitive and specific test to detect infection with Schistosoma mansoni and Schistosoma haematobium has become a pressing need. After obtaining broad input, SCORE supported Leiden University Medical Center (LUMC) to modify the serum-based antigen assay for use with urine, simplify the assay, and improve its sensitivity. The urine assay eventually contributed to several of the larger SCORE studies. For example, in Zanzibar, we demonstrated that urine filtration, the standard parasite egg detection diagnostic test for S. haematobium, greatly underestimated prevalence in low-prevalence settings. In Burundi and Rwanda, the circulating anodic antigen (CAA) assay provided critical information about the limitations of the stool-based Kato-Katz parasite egg-detection assay for S. mansoni in low-prevalence settings. Other SCORE-supported CAA work demonstrated that frozen, banked urine specimens yielded similar results to fresh ones; pooling of specimens may be a useful, cost-effective approach for surveillance in some settings; and the assay can be performed in local laboratories equipped with adequate centrifuge capacity. These improvements in the assay continue to be of use to researchers around the world. However, additional work will be needed if widespread dissemination of the CAA assay is to occur, for example, by building capacity in places besides LUMC and commercialization of the assay. Here, we review the evolution of the CAA assay format during the SCORE period with emphasis on urine-based applications.

Asunto(s)

Antígenos Helmínticos/inmunología , Glicoproteínas/inmunología , Proteínas del Helminto/inmunología , Schistosoma/inmunología , Esquistosomiasis/diagnóstico , Animales , Biomarcadores , Burundi/epidemiología , Niño , Pruebas Diagnósticas de Rutina , Heces/parasitología , Femenino , Humanos , Pruebas Inmunológicas , Masculino , Modelos Animales , Papio/parasitología , Recuento de Huevos de Parásitos , Prevalencia , Rwanda/epidemiología , Santa Lucia/epidemiología , Schistosoma/aislamiento & purificación , Schistosoma haematobium/inmunología , Schistosoma haematobium/aislamiento & purificación , Schistosoma japonicum/inmunología , Schistosoma japonicum/aislamiento & purificación , Schistosoma mansoni/inmunología , Schistosoma mansoni/aislamiento & purificación , Esquistosomiasis/epidemiología , Sensibilidad y Especificidad , Tanzanía/epidemiología , Orina/parasitología

RESUMEN

PURPOSE OF REVIEW: This review describes social determinants of HIV in two geographic and epidemic settings, the Dominican Republic (DR) and Tanzania, among female sex workers (FSW), their influence on HIV outcomes including 90-90-90 goals, and the development and impact of tailored, context driven, community empowerment-based responses in each setting. RECENT FINDINGS: Our review documents the significance of social determinants of HIV including sex work-related stigma, discrimination, and violence and the impact of community empowerment-based approaches on HIV incidence in Tanzania and other HIV prevention, treatment, and care outcomes, including care engagement and adherence, in the DR and Tanzania. Community empowerment approaches where FSW drive the response to HIV and strategically engage partners to target socio-structural and environmental factors can have a demonstrable impact on HIV prevention, treatment, and care outcomes. Such approaches can also support further gains towards reaching the 90-90-90 across geographies and types of epidemics.

Asunto(s)

Empoderamiento , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Trabajadores Sexuales/psicología , Determinantes Sociales de la Salud/estadística & datos numéricos , Adulto , República Dominicana/epidemiología , Epidemias , Femenino , Humanos , Incidencia , Trabajadores Sexuales/estadística & datos numéricos , Estigma Social , Tanzanía/epidemiología , Violencia/estadística & datos numéricos

RESUMEN

OBJECTIVE: Data are needed to demonstrate that providing an "intermediate" level of type 1 diabetes (T1D) care is cost-effective compared to "minimal" care in less-resourced countries. We studied these care scenarios in six countries. METHODS: We modeled the complications/costs/mortality/healthy life years (HLYs) associated with "intermediate" care including two blood glucose tests/day (mean HbA1c 9.0% [75 mmol/mol]) in three lower-gross domestic product (GDP) countries (Mali, Tanzania, Pakistan), or three tests/day (mean HbA1c 8.5% [69 mmol/mol]) in three higher-GDP countries (Bolivia, Sri Lanka, Azerbaijan); and compared findings to "minimal" care (mean HbA1c 12.5% [113 mmol/mol]). A discrete time Markov illness-death model with age and calendar-year-dependent transition probabilities was developed, with inputs of 30 years of complications and Standardized Mortality Rate data from the youth cohort in the Pittsburgh Epidemiology of Diabetes Complications Study, background mortality, and costs determined from international and local prices. RESULTS: Cumulative 30 years incidences of complications were much lower for "intermediate care" than "minimal care", for example, for renal failure incidence was 68.1% (HbA1c 12.5%) compared to 3.9% (9%) and 2.4% (8.5%). For Mali, Tanzania, Pakistan, Bolivia, Sri Lanka, and Azerbaijan, 30 years survival was 50.1%/52.7%/76.7%/72.5%/82.8%/89.2% for "intermediate" and 8.5%/10.1%/39.4%/25.8%/45.5%/62.1% for "minimal" care, respectively. The cost of a HLY gained as a % GDP/capita was 141.1%/110.0%/52.3%/41.8%/17.0%/15.6%, respectively. CONCLUSIONS: Marked reductions in complications rates and mortality are achievable with "intermediate" T1D care achieving mean clinic HbA1c of 8.5% to 9% (69-75 mmol/mol). This is also "very cost-effective" in four of six countries according to the WHO "Fair Choices" approach which costs HLYs gained against GDP/capita.

Asunto(s)

Atención a la Salud , Diabetes Mellitus Tipo 1 , Adolescente , Edad de Inicio , Azerbaiyán/epidemiología , Bolivia/epidemiología , Niño , Preescolar , Análisis Costo-Beneficio , Atención a la Salud/economía , Atención a la Salud/métodos , Atención a la Salud/estadística & datos numéricos , Complicaciones de la Diabetes/economía , Complicaciones de la Diabetes/epidemiología , Complicaciones de la Diabetes/terapia , Diabetes Mellitus Tipo 1/complicaciones , Diabetes Mellitus Tipo 1/economía , Diabetes Mellitus Tipo 1/epidemiología , Diabetes Mellitus Tipo 1/terapia , Femenino , Humanos , Lactante , Masculino , Malí/epidemiología , Mortalidad , Pakistán/epidemiología , Pautas de la Práctica en Medicina/economía , Pautas de la Práctica en Medicina/estadística & datos numéricos , Años de Vida Ajustados por Calidad de Vida , Autocuidado/métodos , Autocuidado/normas , Autocuidado/estadística & datos numéricos , Sri Lanka/epidemiología , Tanzanía/epidemiología , Resultado del Tratamiento

RESUMEN

BACKGROUND: Because the success of deworming programs targeting soil-transmitted helminths (STHs) is evaluated through the periodically assessment of prevalence and infection intensities, the use of the correct diagnostic method is of utmost importance. The STH community has recently published for each phase of a deworming program the minimal criteria that a potential diagnostic method needs to meet, the so-called target product profiles (TPPs). METHODOLOGY: We compared the diagnostic performance of a single Kato-Katz (reference method) with that of other microscopy-based methods (duplicate Kato-Katz, Mini-FLOTAC and FECPAKG2) and one DNA-based method (qPCR) for the detection and quantification of STH infections in three drug efficacy trials in Ethiopia, Lao PDR, and Tanzania. Furthermore, we evaluated a selection of minimal diagnostic criteria of the TPPs. PRINCIPAL FINDINGS: All diagnostic methods showed a clinical sensitivity of ≥90% for all STH infections of moderate-to-heavy intensities. For infections of very low intensity, only qPCR resulted in a sensitivity that was superior to a single Kato-Katz for all STHs. Compared to the reference method, both Mini-FLOTAC and FECPAKG2 resulted in significantly lower fecal egg counts for some STHs, leading to a substantial underestimation of the infection intensity. For qPCR, there was a positive significant correlation between the egg counts of a single Kato-Katz and the DNA concentration. CONCLUSIONS/SIGNIFICANCE: Our results indicate that the diagnostic performance of a single Kato-Katz is underestimated by the community and that diagnostic specific thresholds to classify intensity of infection are warranted for Mini-FLOTAC, FECPAKG2 and qPCR. When we strictly apply the TPPs, Kato-Katz is the only microscopy-based method that meets the minimal diagnostic criteria for application in the planning, monitoring and evaluation phase of an STH program. qPCR is the only method that could be considered in the phase that aims to seek confirmation for cessation of program. TRIAL REGISTRATION: ClinicalTrials.gov NCT03465488.

Asunto(s)

Pruebas Diagnósticas de Rutina/métodos , Helmintiasis/parasitología , Helmintiasis/transmisión , Helmintos/aislamiento & purificación , Técnicas de Diagnóstico Molecular/métodos , Reacción en Cadena en Tiempo Real de la Polimerasa/métodos , Suelo/parasitología , Adolescente , Animales , Brasil , Niño , Pruebas Diagnósticas de Rutina/instrumentación , Etiopía/epidemiología , Heces/parasitología , Femenino , Helmintiasis/diagnóstico , Helmintiasis/epidemiología , Helmintos/genética , Humanos , Laos/epidemiología , Masculino , Microscopía , Técnicas de Diagnóstico Molecular/instrumentación , Recuento de Huevos de Parásitos/métodos , Prevalencia , Sensibilidad y Especificidad , Tanzanía/epidemiología , Organización Mundial de la Salud

RESUMEN

Little is known about enteropathogen seroepidemiology among children in low-resource settings. We measured serological IgG responses to eight enteropathogens (Giardia intestinalis, Cryptosporidium parvum, Entamoeba histolytica, Salmonella enterica, enterotoxigenic Escherichia coli, Vibrio cholerae, Campylobacter jejuni, norovirus) in cohorts from Haiti, Kenya, and Tanzania. We studied antibody dynamics and force of infection across pathogens and cohorts. Enteropathogens shared common seroepidemiologic features that enabled between-pathogen comparisons of transmission. Overall, exposure was intense: for most pathogens the window of primary infection was <3 years old; for highest transmission pathogens primary infection occurred within the first year. Longitudinal profiles demonstrated significant IgG boosting and waning above seropositivity cutoffs, underscoring the value of longitudinal designs to estimate force of infection. Seroprevalence and force of infection were rank-preserving across pathogens, illustrating the measures provide similar information about transmission heterogeneity. Our findings suggest antibody response can be used to measure population-level transmission of diverse enteropathogens in serologic surveillance.

Asunto(s)

Anticuerpos Antibacterianos/sangre , Anticuerpos Antiprotozoarios/sangre , Anticuerpos Antivirales/sangre , Infecciones Bacterianas/epidemiología , Infecciones por Caliciviridae/epidemiología , Inmunoglobulina G/sangre , Parasitosis Intestinales/epidemiología , Factores de Edad , Niño , Países en Desarrollo , Transmisión de Enfermedad Infecciosa , Monitoreo Epidemiológico , Haití/epidemiología , Humanos , Kenia/epidemiología , Estudios Longitudinales , Estudios Seroepidemiológicos , Tanzanía/epidemiología

RESUMEN

BACKGROUND: The persistence of preventable maternal and newborn deaths highlights the importance of quality of care as an essential element in coverage interventions. Moving beyond the conventional measurement of crude coverage, we estimated effective coverage of facility delivery by adjusting for facility preparedness to provide delivery services in Bangladesh, Haiti, Malawi, Nepal, Senegal, and Tanzania. METHODS: The study uses data from Demographic and Health Surveys (DHS) and Service Provision Assessments (SPA) in Bangladesh (2014 DHS and 2014 SPA), Haiti (2012 DHS and 2013 SPA), Malawi (2015-16 DHS and 2013-14 SPA), Nepal (2016 DHS and 2015 SPA), Senegal (2016 DHS and 2015 SPA), and Tanzania (2015-16 DHS and 2014-15 SPA). We defined effective coverage as the mathematical product of crude coverage and quality of care. The coverage of facility delivery was measured with DHS data and quality of care was measured with facility data from SPA. We estimated effective coverage at both the regional and the national level and accounted for type of facility where delivery care was sought. FINDINGS: The findings from the six countries indicate the effective coverage ranges from 24% in Haiti to 66% in Malawi, representing substantial reductions (20% to 39%) from crude coverage rates. Although Malawi has achieved almost universal coverage of facility delivery (93%), effective coverage was only 66%.vSuch gaps between the crude coverage and the effective coverage suggest that women delivered in health facility but did not necessarily receive an adequate quality of care. In all countries except Malawi, effective coverage differed substantially among the country's regions of the country, primarily due to regional variability in coverage. INTERPRETATION: Our findings reinforce the importance of quality of obstetric and newborn care to achieve further reduction of maternal and newborn mortality. Continued efforts are needed to increase the use of facility delivery service in countries or regions where coverage remains low.

Asunto(s)

Atención a la Salud , Instituciones de Salud , Mortalidad Infantil , Cobertura del Seguro , Mortalidad Materna , Calidad de la Atención de Salud , Adulto , Bangladesh/epidemiología , Femenino , Haití/epidemiología , Humanos , Lactante , Salud del Lactante , Malaui/epidemiología , Servicios de Salud Materna , Nepal/epidemiología , Embarazo , Senegal/epidemiología , Tanzanía/epidemiología