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2.
Emerg Infect Dis ; 22(9): 1653-5, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27268508

RESUMEN

Persons who died of Ebola virus disease at home in rural communities in Liberia and Guinea resulted in more secondary infections than persons admitted to Ebola treatment units. Intensified monitoring of contacts of persons who died of this disease in the community is an evidence-based approach to reduce virus transmission in rural communities.


Asunto(s)
Coinfección/epidemiología , Ebolavirus , Fiebre Hemorrágica Ebola/epidemiología , Población Rural , Coinfección/historia , Coinfección/transmisión , Coinfección/virología , Guinea/epidemiología , Fiebre Hemorrágica Ebola/historia , Fiebre Hemorrágica Ebola/transmisión , Fiebre Hemorrágica Ebola/virología , Historia del Siglo XXI , Hospitalización , Humanos , Liberia/epidemiología , Vigilancia de la Población
3.
Emerg Infect Dis ; 21(10): 1800-7, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26402477

RESUMEN

We measured the reproduction number before and after interventions were implemented to reduce Ebola transmission in 9 outbreaks in Liberia during 2014. We evaluated risk factors for secondary cases and the association between patient admission to an Ebola treatment unit (ETU) and survival. The reproduction number declined 94% from 1.7 (95% CI 1.1-2.6) to 0.1 (95% CI 0.02-0.6) after interventions began. The risk for secondary infections was 90% lower for patients admitted to an ETU (risk ratio 0.1, 95% CI 0.04-0.3) than for those who died in the community. The case-fatality rate was 68% (95% CI 60-74), and ETU admission was associated with a 50% reduction in death (hazard ratio 0.5, 95% CI 0.4-0.8). Isolation and treatment of Ebola patients had the dual benefit of interrupting community transmission and improving survival.


Asunto(s)
Brotes de Enfermedades , Ebolavirus/patogenicidad , Fiebre Hemorrágica Ebola/epidemiología , Factores de Tiempo , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Humanos , Liberia/epidemiología , Masculino , Persona de Mediana Edad , Factores de Riesgo
4.
MMWR Morb Mortal Wkly Rep ; 64(7): 188-92, 2015 Feb 27.
Artículo en Inglés | MEDLINE | ID: mdl-25719682

RESUMEN

West Africa is experiencing its first epidemic of Ebola virus disease (Ebola). As of February 9, Liberia has reported 8,864 Ebola cases, of which 3,147 were laboratory-confirmed. Beginning in August 2014, the Liberia Ministry of Health and Social Welfare (MOHSW), supported by CDC, the World Health Organization (WHO), and others, began systematically investigating and responding to Ebola outbreaks in remote areas. Because many of these areas lacked mobile telephone service, easy road access, and basic infrastructure, flexible and targeted interventions often were required. Development of a national strategy for the Rapid Isolation and Treatment of Ebola (RITE) began in early October. The strategy focuses on enhancing capacity of county health teams (CHT) to investigate outbreaks in remote areas and lead tailored responses through effective and efficient coordination of technical and operational assistance from the MOHSW central level and international partners. To measure improvements in response indicators and outcomes over time, data from investigations of 12 of 15 outbreaks in remote areas with illness onset dates of index cases during July 16-November 20, 2014, were analyzed. The times to initial outbreak alerts and durations of the outbreaks declined over that period while the proportions of patients who were isolated and treated increased. At the same time, the case-fatality rate in each outbreak declined. Implementation of strategies, such as RITE, to rapidly respond to rural outbreaks of Ebola through coordinated and tailored responses can successfully reduce transmission and improve outcomes.


Asunto(s)
Brotes de Enfermedades/prevención & control , Ebolavirus/aislamiento & purificación , Fiebre Hemorrágica Ebola/prevención & control , Población Rural , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Brotes de Enfermedades/estadística & datos numéricos , Femenino , Fiebre Hemorrágica Ebola/epidemiología , Humanos , Lactante , Liberia/epidemiología , Masculino , Persona de Mediana Edad , Población Rural/estadística & datos numéricos , Factores de Tiempo , Adulto Joven
5.
PLoS One ; 9(1): e86631, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24489754

RESUMEN

BACKGROUND: Safe Male Circumcision is a proven approach for partial HIV prevention. Several sub Saharan African countries have plans to reach a prevalence of 80% of their adult males circumcised by 2015. These targets require out of ordinary organization, demand creation, timely execution and perhaps the use of SMC devices. OBJECTIVE: To profile Adverse Events rate and acceptance of PrePex, a non surgical device for adult male circumcision. METHODS: A prospective study, conducted at International Hospital Kampala, Uganda, between August and October 2012. Ethical approval was obtained from Uganda National Council of Science and Technology. RESULTS: Of 1,040 men received to undergo SMC, 678 opted for PrePex, 36 were excluded at an initial physical examination screening. 642 were enrolled and consented, and another 17 were excluded before device placement. 625 underwent the procedure. Average age was 24 years (± 7). Twelve moderate AEs occurred among 10 participants 12/625, (1.9%). These were all reversible. Five had device displacement, one had an everted foreskin; five had bleeding after the device was removed and one had voiding difficulties. The majority (279 out of 300) of men interviewed complained of some pain within the week of placement. Mean pain score at device placement (using visual analogue scale) was 0.5, at device removal 4.5 and within 2 min of removal the pain score was 1.4. Over 70% of the devices were placed and removed by non-physician clinicians. Presented with a choice, 60% of men chose PrePex over surgical SMC. Close to 90% would recommend the device to their friends. Odour from the necrotic skin was a concern. Removals done 1-2 days earlier than day 7 were beneficial and conferred no extra risk. CONCLUSION: AEs of a moderate or severe nature associated with PrePex were low and reversible. PrePex is feasible for mass safe male circumcision scaling up.


Asunto(s)
Circuncisión Masculina/efectos adversos , Ciudades , Equipos y Suministros/efectos adversos , Adolescente , Adulto , Humanos , Masculino , Persona de Mediana Edad , Uganda , Adulto Joven
6.
PLoS One ; 8(5): e63134, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23717402

RESUMEN

INTRODUCTION: Modelling, supported by the USAID Health Policy Initiative and UNAIDS, performed in 2011, indicated that Uganda would need to perform 4.2 million medical male circumcisions (MMCs) to reach 80% prevalence. Since 2010 Uganda has completed 380,000 circumcisions, and has set a national target of 1 million for 2013. OBJECTIVE: To evaluate the relative reach and cost-effectiveness of PrePex compared to the current surgical SMC method and to determine the effect that this might have in helping to achieve the Uganda national SMC targets. METHODS: A cross-sectional descriptive cost-analysis study conducted at International Hospital Kampala over ten weeks from August to October 2012. Data collected during the performance of 625 circumcisions using PrePex was compared to data previously collected from 10,000 circumcisions using a surgical circumcision method at the same site. Ethical approval was obtained. RESULTS: The moderate adverse events (AE) ratio when using the PrePex device was 2% and no severe adverse events were encountered, which is comparable to the surgical method, thus the AE rate has no effect on the reach or cost-effectiveness of PrePex. The unit cost to perform one circumcision using PrePex is $30.55, 35% ($7.90) higher than the current surgical method, but the PrePex method improves operator efficiency by 60%, meaning that a team can perform 24 completed circumcisions compared to 15 by the surgical method. The cost-effectiveness of PrePex, comparing the cost of performing circumcisions to the future cost savings of potentially averted HIV infections, is just 2% less than the current surgical method, at a device cost price of $20. CONCLUSION: PrePex is a viable SMC tool for scale-up with unrivalled potential for superior reach, however national targets can only be met with effective demand creation and availability of trained human resource.


Asunto(s)
Circuncisión Masculina/economía , Circuncisión Masculina/instrumentación , Análisis Costo-Beneficio/economía , Equipos y Suministros/economía , Circuncisión Masculina/efectos adversos , Ahorro de Costo/economía , Estudios Transversales , Equipos y Suministros/efectos adversos , Infecciones por VIH/economía , Política de Salud/economía , Humanos , Masculino , Uganda , Estados Unidos , United States Agency for International Development
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