{"id":58451,"date":"2020-04-26T08:38:52","date_gmt":"2020-04-26T11:38:52","guid":{"rendered":"http:\/\/www.diariosanfrancisco.com.ar\/?p=58451"},"modified":"2020-04-26T08:38:52","modified_gmt":"2020-04-26T11:38:52","slug":"aseguran-mosquito-del-dengue-muto-sobrevivir-al-frio","status":"publish","type":"post","link":"https:\/\/www.diariosanfrancisco.com.ar\/?p=58451","title":{"rendered":"Aseguran que el mosquito del dengue mut\u00f3 para sobrevivir al fr\u00edo"},"content":{"rendered":"<p>En pleno aislamiento social obligatorio por la pandemia del Covid 19, persiste la problem\u00e1tica del dengue. En el pa\u00eds, se notificaron m\u00e1s de 40.000 casos por sospecha de dengue en los \u00faltimos ocho meses, siendo la mayor\u00eda aut\u00f3ctonos (sin antecedentes de viajes) y hay al menos 10 personas fallecidas hasta el momento.<\/p>\n<p>En el \u00faltimo mes, los nuevos casos positivos confirmados fueron m\u00e1s de 12.000, seg\u00fan el Ministerio de Salud de la Naci\u00f3n. Solo en 30 d\u00edas los casos confirmados aumentaron m\u00e1s de un 700%: hasta el 2 de marzo eran 1743 confirmados (6991 casos notificados).<\/p>\n<p>Ahora, cient\u00edficos del Grupo de Mosquitos de la Facultad de Ciencias Exactas y Naturales de la Universidad de Buenos Aires (UBA) realizaron un importante descubrimiento en un los insectos portadores del dengue.<\/p>\n<p>\u200bSeg\u00fan el reciente estudio, espec\u00edmenes de la familia Aedes aegypti oriundos de la provincia de Buenos Aires lograron adaptarse al clima en funci\u00f3n de las horas de luz.<\/p>\n<p>La doctora Sylvia Fischer, quien integr\u00f3 la investigaci\u00f3n y forma parte del Conicet, aclar\u00f3 que se trata de un proceso ligado a la se\u00f1al ambiental que regula la eclosi\u00f3n de los huevos. \u201cEste factor determina si van a poder eclosionar o no. El mecanismo se llama fotoper\u00edodo\u201d, explic\u00f3. <\/p>\n<p>Tiene que ver con la cantidad de horas que est\u00e1n expuestas a la luz las madres de las cr\u00edas. \u201cEs un indicador mucho m\u00e1s confiable que la temperatura, que es fluctuante y podr\u00eda confundir a los bichos\u201d, aclar\u00f3.<\/p>\n<p>Seg\u00fan el informe, las hembras de Aedes aegypti lograron hallar localmente la diapausa, a diferencia de la extensa bibliograf\u00eda que dicta lo contrario. Este \u00faltimo hallazgo no solo sorprendi\u00f3 a la comunidad cient\u00edfica, sino que tambi\u00e9n encontr\u00f3 algunos adversarios.<\/p>\n<p>No obstante, Fischer explic\u00f3 que en la Argentina, el vector est\u00e1 avanzando en su distribuci\u00f3n y se lo ha encontrado tanto en el centro de Buenos Aires como en La Pampa, Mendoza, San Juan, Neuqu\u00e9n y R\u00edo Negro. El Aedes aegypti es el \u00fanico mosquito que puede transmitir dengue en el pa\u00eds. Tambi\u00e9n transmite otras enfermedades como chikungunya, zika o fiebre amarilla.<\/p>\n<p>Eliminar los posibles criaderos de mosquitos sigue siendo la medida m\u00e1s efectiva de combatir el dengue, ya que a\u00fan no existen vacunas preventivas o medicamentos que curen la enfermedad.<\/p>\n<p>Fuente: V\u00eda Pa\u00eds. <a href=\"https:\/\/viapais.com.ar\/argentina\/1722853-aseguran-que-el-mosquito-del-dengue-muto-para-sobrevivir-al-frio\/\">V\u00eda Pa\u00eds<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Investigadores descubrieron que ejemplares se adaptaron a menores temperaturas.<\/p>\n","protected":false},"author":2,"featured_media":1319,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[1],"tags":[],"class_list":["post-58451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-policiales"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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