Epidemiological Alert, Update on Avian Influenza (25 March 2004)
Alerta Epidemiológica, Actualización sobre la influenza aviar (25 marzo 2004)
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Since the beginning of December 2003, 8 countries and territories in Asia (Cambodia, China, Indonesia, Japan, Laos, South Korea, Thailand, and Viet Nam) have confirmed in their reports to the World Organization for Animal Health (OIE) the existence of outbreAvian Influenza A, Subtype H5N1 in different species of birds. Since the beginning of February 2004, no outbreaks have been reported in additional countries, and some countries, e.g. Viet Nam and China, have not reported any new outbreaks since the middle of February. However, 2 Asian countries (Thailand and Viet Nam) have confirmthe occurrence of human cases of Avian Influenza A (H5N1), for a total of 34 human cases and 23 deaths. The number of human cases has not changed since our last update of 18 March 2004. Desde inicios de diciembre de 2003, ocho países y territorios de la región asiática (Camboya, China, Indonesia, Japón, Laos PDR, República de Corea, Tailandia y Vietnam) han confirmado la existencia de brotes de influenza aviar, subtipo H5N1 en diferentes especies de aves a la Organización Mundial de Salud Animal (OIE). Desde principios de febrero de 2004, no se han notificado brotes en países adicionales; y algunos países como Vietnam y China no han vuelto a notificar nuevos brotes desde mediados de febrero. Dos países de esta Región han confirmado la ocurrencia de casos por el virus aviar subtipo H5N1 en humanos (Tailandia y Vietnam), con un total de 34 casos en humanos y 23 muertes. El número de casos en humanos no ha variado respecto a la última actualización (18 de marzo).
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