541 resultados para Pandemic preparedness


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Fundamento. Evaluar en población general las fuentes de información, actitudes y predisposición hacia la vacunación contra la gripe pandémica A/H1N1 de 2009. Métodos. Estudio descriptivo de carácter transversal realizado entre el 25 de noviembre y 30 de diciembre de 2009 mediante entrevista personal cara a cara a una muestra aleatoria (826) de adultos residentes en el Departamento de Salud de Elche (España). Resultados. Los encuestados manifestaron que la televisión (57%) y el médico de familia (47,9%) eran su fuente principal de información sobre vacunas. El 82,2% tenía una buena opinión sobre las vacunas, un 30,5% percibía la gripe A/H1N1 como más grave que la estacional, siendo esta percepción creciente entre los de mayor edad y con menos estudios. Un 25,4% de encuestados sentía preocupación por padecerla, sobre todo los de menor nivel educativo. Un 42,1% manifiesta su buena predisposición para vacunarse contra la gripe estacional, disminuyendo hasta un 18,4% la intención hacia la gripe A/H1N1. La predisposición hacia la vacunación crece con la edad y en el caso de la gripe A/H1N1 decrece a mayor nivel educativo. El médico de familia es la fuente de información más determinante para inmunizarse frente a gripe estacional (OR 1,43) y gripe A/H1N1 (OR 2,47). Conclusiones. Existe baja aceptabilidad de la vacuna pandémica y baja percepción de gravedad sobre la gripe A/H1N1. La experiencia previa de vacunación ante gripe estacional predispone hacia la inmunización contra gripe A/H1N1. Aunque los medios de comunicación encabezan la fuente de información más usual durante este episodio, la influencia del médico de familia en la decisión de vacunarse resulta significativa.

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Introducción: Considerado como grupo de riesgo específico en la estrategia de inmunización contra la gripe A (H1N1), el colectivo de trabajadores sanitarios ha sido objeto de este estudio desde la perspectiva de sus actitudes y creencias hacia la inmunización, con especial énfasis en la influencia de las fuentes de información para tomar la decisión de vacunarse. Métodos: Estudio observacional de carácter transversal dirigido a trabajadores sanitarios en activo de la provincia de Alicante y realizado mediante cuestionario cara a cara a una muestra aleatoria por cuotas según categoría profesional en trabajadores de hospitales y centros de salud. Resultados: Las fuentes de información difieren entre subgrupos: los médicos utilizaron revistas científicas y/o congresos, las enfermeras la obtuvieron a través de Sanidad y otras enfermeras, el resto de trabajadores optaron por la televisión y/o el médico de familia. De los 3 colectivos estudiados, los médicos son los que menos sensación de gravedad han percibido frente a la gripe A (H1N1) (59,4%), son los que más confían en la vacuna (42,3%), los que más la recomiendan (44,4%), los que mejor han seguido las recomendaciones para evitar el contagio (93%) y los más vacunados (18,3%). El 75,5% de los sanitarios valoró la información recibida como regular, mala o muy mala. La totalidad admitió que se creó alarma social. Discusión: El éxito de futuras campañas de inmunización contra la gripe en personal sanitario podría incrementarse si fueran diseñadas actividades informativas segmentadas y orientadas a cada subgrupo del colectivo, adecuando la estrategia y mejorando la calidad de la información.

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El siglo XX se vio castigado por una pandemia de gripe que azotó el mundo durante 3 oleadas distribuidas entre febrero de 1918 y junio de 1919. La enorme difusión y gravedad de sus casos caracterizaron a la enfermedad, que fue etiquetada con el nombre de «gripe española». El origen de esta denominación está en la ausencia de censura mediática en España, país no contendiente en la Primera Guerra Mundial, lo que propició la libre circulación de noticias sobre la pandemia, que dieron lugar al equívoco. La pandemia puso en evidencia la escasa efectividad de los recursos médicos de la época, pese al apogeo de las nuevas especialidades nacidas en la era bacteriológica. El impacto social y magnitud de la epidemia fueron recogidos, entre otros, por el periódico España Médica. Fundado y dirigido por el pediatra José Ignacio Eleizegui López (1879-1956), el análisis de las noticias de ese periodo aporta una visión sobre las claves del desarrollo de la enfermedad, la gestión administrativa y los recursos terapéuticos y preventivos empleados.

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Dissertação apresentada à Escola Superior Agrária do Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Sistemas de Informação Geográfica - Recursos Agro-Florestais e Ambientais.

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Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

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Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

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The EU and the US have been stepping up sanctions against Russia because the Kremlin has broken every basic rule of the pan-European security order enshrined in the Helsinki Treaty of 1975. The effective closure of financial markets for Russia’s big businesses now has serious bite. The Kremlin’s counter-sanctions are marginal. Russia’s actual and threatened trade sanctions against Ukraine, alongside its aggression over Crimea and east Ukraine, mean that it has cast itself in the image of an enemy for most Ukrainians. Europe’s trust of the Kremlin has sunk to its lowest level since pre-Gorbachev times. If Russia were to switch to a sincerely cooperative, long-term peace mode with Ukraine, the EU and the US would no doubt be happy to scrap the sanctions. In the absence of this, however, the logic would be for the EU and the US to sustain the most significant economic sanctions for as long as it takes, with preparedness to intensify them.

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Influenza A virus assembly is an unclear process, whereby individual virion components form an infectious particle. The segmented nature of the influenza A genome imposes a problem to assembly because it requires packaging of eight distinct RNA particles (vRNPs). It also allows genome mixing from distinct parental strains, events associated with influenza pandemic outbreaks. It is important to public health to understand how segmented genomes assemble, a process that is dependent on the transport of components to assembly sites. Previously, it has been shown that vRNPs are carried by recycling endosome vesicles, resulting in a change of Rab11 distribution. Here, we describe that vRNP binding to recycling endosomes impairs recycling endosome function, by competing for Rab11 binding with family-interacting proteins, and that there is a causal relationship between Rab11 ability to recruit family-interacting proteins and Rab11 redistribution. This competition reduces recycling sorting at an unclear step, resulting in clustering of single- and double-membraned vesicles. These morphological changes in Rab11 membranes are indicative of alterations in protein and lipid homeostasis during infection. Vesicular clustering creates hotspots of the vRNPs that need to interact to form an infectious particle.

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Recent studies suggest an association between the Interferon Inducible Transmembrane 3 (IFITM3) rs12252 variant and the course of influenza infection. However, it is not clear whether the reported association relates to influenza infection severity. The aim of this study was to estimate the hospitalization risk associated with this variant in Influenza Like Illness (ILI) patients during the H1N1 pandemic influenza. A case-control genetic association study was performed, using nasopharyngeal/oropharyngeal swabs collected during the H1N1 pandemic influenza. Laboratory diagnosis of influenza infection was performed by RT-PCR, the IFITM3 rs12252 was genotyped by RFLP and tested for association with hospitalization. Conditional logistic regression was performed to calculate the confounder-adjusted odds ratio of hospitalization associated with IFITM3 rs12252. We selected 312 ILI cases and 624 matched non-hospitalized controls. Within ILI Influenza A(H1N1)pdm09 positive patients, no statistical significant association was found between the variant and the hospitalization risk (Adjusted OR: 0.73 (95%CI: 0.33–1.50)). Regarding ILI Influenza A(H1N1)pdm09 negative patients, CT/CC genotype carriers had a higher risk of being hospitalized than patients with TT genotype (Adjusted OR: 2.54 (95%CI: 1.54–4.19)). The IFITM3 rs12252 variant was associated with respiratory infection hospitalization but not specifically in patients infected with Influenza A(H1N1)pdm09.

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Background: Flu vaccine composition is reformulated on a yearly basis. As such, the vaccine effectiveness (VE) from previous seasons cannot be considered for subsequent years, and it is necessary to monitor the VE for each season. This study (MonitorEVA- monitoring vaccine effectiveness) intends to evaluate the feasibility of using the national influenza surveillance system (NISS) for monitoring the influenza VE. Material and methods: Data was collected within NISS during 2004 to 2014 seasons. We used a case-control design where laboratory confirmed incident influenza like illness (ILI) patients (cases) were compared to controls (ILI influenza negative). Eligible individuals consisted on all aged individuals that consult a general practitioner or emergency room with ILI symptoms with a swab collected within seven days of symptoms onset. VE was estimated as 1- odds ratio of being vaccinated in cases versus controls adjusted for age and month of onset by logistic regression. Sensitivity analyses were conducted to test possible effect of assumptions on vaccination status, ILI definition and timing of swabs (<3 days after onset). Results: During the 2004-2014 period, a total of 5302 ILI patients were collected but 798 ILI were excluded for not complying with inclusion criteria. After data restriction the sample size in both groups was higher than 148 individuals/ season; minimum sample size needed to detect a VE of at least 50% considering a level of significance of 5% and 80% power. Crude VE point estimates were under 45% in 2004/05, 2005/06, 2011/12 and 2013/14 season; between 50%-70% in 2006/07, 2008/09 and 2010/11 seasons, and above 70% in 2007/08 and 2012/13 season. From season 2006/07 to 2013/14, all crude VE estimates were statistically significant. After adjustment for age group and month of onset, the VE point estimates decreased and only 2008/09, 2012/13 and 2013/14 seasons were significant. Discussion and Conclusions: MonitorEVA was able to provide VE estimates for all seasons, including the pandemic, indicating if the VE was higher than 70% and less than 50%. When comparing with other observational studies, MonitorEVA estimates were comparable but less precise and VE estimates were in accordance with the antigenic match of the circulating virus/ vaccine strains. Given the sensitivity results, we propose a MonitorEVA based on: a) Vaccination status defined independently of number of days between vaccination and symptoms onset; b) use of all ILI data independent of the definition; c) stratification of VE according to time between onset and swab (< 3 and ≥3 days).

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Cainozoic deep-sea ostracod assemblages from the summits of Mid-Pacific guyots point to high levels of endemism possibly as a result of their bathymetric separation from the surrounding sea floor. However, the interpretation of these fossil assemblages is hampered by the paucity of comparative material from surrounding non-guyot sites. Fifteen ostracod assemblages from DSDP Site 463 (Late Cretaceous-Pleistocene) were studied to compare with those from nearby guyots. Three distinct faunal assemblages are recognised at Site 463: Assemblage A (Maastrichtian-Eocene), Assemblage B (Oligocene-Upper Miocene) and Assemblage C (Upper Miocene-Pleistocene) although the palaeoenvironmental significance of these units is unclear. Sixty-two ostracod species are identified, the thirteen most abundant are discussed in the taxonomic section, five of which are described as new. Between 30 and 100% of the species encountered in each sample are considered as endemic to Site 463, while some of the remaining species were previously thought to be endemic to individual guyots. Similarly high levels of endemism on nearby guyots probably reflect an incomplete knowledge of deep-sea ostracod faunas rather than the establishment of geographically or bathymetrically restricted populations. The presence of globally pandemic and geographically widespread taxa on sites such as the Mid-Pacific Mountains, surrounded by abyssal depths which lie below the CCD, indicates that some faunal exchange or migration of ostracods does take place. This must be achieved within the intermediate waters and probably occurs passively.

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Prepared under contract DCPAO1-75-C-0279, Work unit 2312E, by Center for Planning and Research, Inc., 750 Welch Road ,Palo Alto, CA.

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Shipping list no.: 92-290-P.

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Issued Mar. 1977.