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Auteur principal:	Érika Patricia Alarcón
Format:	Artículo científico
Langue:	es
Publié:	Instituto Nacional de Salud 2014
Sujets:	Medicina dengue Colombia Aedes aegypti insectos vectores Bacillus thuringiensis
Accès en ligne:	https://www.redalyc.org/articulo.oa?id=84331812011
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Evaluación de ovitrampas para vigilancia y control de Aedes aegypti en dos centros urbanos del Urabá antioqueño Érika Patricia Alarcón Ángela María Segura Guillermo Rúa-Uribe Gabriel Parra-Henao Medicina dengue Colombia Aedes aegypti insectos vectores Bacillus thuringiensis Introducción. Aedes ( Stegomyia ) aegypti es el principal vector del dengue. En el control del mosquito se han usado insecticidas químicos contra los cuales ha desarrollado resistencia. Es necesaria la evaluación de estrategias alternativas que sean eficientes, económicas y de fácil aplicación, como las ovitrampas con Bacillus thuringiesis var. israeliensis. Objetivo. Evaluar el impacto de ovitrampas con B. thuringiesis var. israeliensis sobre los índices aédicos tradicionales, como estrategia para la vigilancia y el control de A. aegypti . Materiales y métodos. Se seleccionaron ocho barrios de los municipios de Apartadó y Carepa, Antioquia, de los cuales se escogieron dos barrios para la intervención y dos para el control en cada municipio. La intervención consistió en la instalación de una ovitrampa con B. thuringiesis var. israeliensis en cada una de las viviendas. Las ovitrampas se visitaron mensualmente entre septiembre de 2009 y marzo de 2010. Se obtuvieron los índices aédicos tradicionales y se hicieron comparaciones entre los barrios. Se calculó el índice de ovitrampas positivas y el de densidad de huevos, y se generaron los mapas de densidad. Resultados. Se colocaron 519 ovitrampas muestreadas mensualmente. Se hicieron 3.114 muestreos, con un porcentaje de registros positivos de 76,4 %. Se recolectaron 501.425 huevos. En Apartadó se observaron diferencias significativas entre el índice de infestación de viviendas, el índice de infestación de depósitos y el índice de Breteau en los barrios intervenidos comparados con los barrios de control. El índice de ovitrampas positivas evidenció un alto riesgo de infestación por A. aegypti y, los índices tradicionales, niveles de riesgo medio y bajo. Conclusiones. Las ovitrampas tuvieron impacto sobre los índices tradicionales y demostraron ser estrategias útiles en la vigilancia de A. aegypti en el Urabá antioqueño. 2014 artículo científico 0120-4157 https://www.redalyc.org/articulo.oa?id=84331812011 es http://www.redalyc.org/revista.oa?id=843 Biomédica application/pdf Instituto Nacional de Salud Biomédica (Colombia) Num.3 Vol.34

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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