{"id":46,"date":"2007-10-11T00:28:00","date_gmt":"2007-10-10T22:28:00","guid":{"rendered":"https:\/\/www.ozono21.com\/blog\/46\/sin-categoria\/el-virus-de-la-gripe-aviar-ha-mutado-y-ya-puede-provocar-una-pandemia\/"},"modified":"2026-02-20T19:18:34","modified_gmt":"2026-02-20T17:18:34","slug":"gripe-aviar-provoca-una-pandemia","status":"publish","type":"post","link":"https:\/\/www.ozono21.com\/blog\/alimentos\/gripe-aviar-provoca-una-pandemia\/","title":{"rendered":"El virus de la gripe aviar ha mutado y ya puede provocar una pandemia"},"content":{"rendered":"<p style=\"text-align: justify;\">\n<h2 style=\"text-align: justify;\"><strong><img loading=\"lazy\" decoding=\"async\"  class=\"alignleft\" style=\"margin: 50px 10px 50px 0px; cursor: hand; border: 0px;\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2012\/02\/Gripe-Aviar-variante-del-virus-contagiosa-y-mortal-para-el-ser-humano-e1452033496977-300x169.jpg\" border=\"0\" alt=\"gripe aviar\" title=\"El virus de la gripe aviar ha mutado y ya puede provocar una pandemia\" width=\"300\" height=\"169\" \/><a title=\"Ozono21 Salud\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/empresariales\/salud-bienestar-belleza\/7\/\" target=\"_blank\" rel=\"noopener noreferrer\">El virus de la gripe aviar ha mutado y ya puede provocar una pandemia <\/p>\n<p>Como la comunidad cient\u00edfica y tambi\u00e9n la Organizaci\u00f3n Mundial de la Salud (OMS)preve\u00edan desde hace a\u00f1os, la cepa H5N1 del virus de la gripe aviar ha logrado mutar adquiriendo una mayor capacidad para transmitirse de persona a persona y obtiene el potencial para provocar una pandemia.<\/a><\/strong><\/h2>\n<\/p>\n<p>FUENTE: ABC Peri\u00f3dico Electr\u00f3nico S.A. (08\/10\/2007)<br \/>Autor: S. Basco<\/p>\n<p style=\"text-align: justify;\"><strong><em>La mutaci\u00f3n en cuesti\u00f3n ha sido identificada por el equipo de investigaci\u00f3n dirigido por Yoshihiro Kawaoka en la <\/em><\/strong><a href=\"http:\/\/www.wisc.edu\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong><em>Universidad de Wisconsin-Madison<\/em><\/strong><\/a><strong><em> (EE.UU.), el m\u00e1s avanzado del mundo en el estudio de esta enfermedad. <\/em><\/strong><\/p>\n<p style=\"text-align: justify;\">Un \u00fanico cambio en un amino\u00e1cido de una de las prote\u00ednas de la superficie del virus, responsable del desarrollo gen\u00e9tico del H5N1, ha provocado que el <strong>virus consiga adaptarse a las bajas temperaturas presentes en el tracto respiratorio superior del ser humano<\/strong>, de manera que logra sobrevivir en la garganta y en las fosas nasales.<\/p>\n<p style=\"text-align: justify;\">El estudio, publicado en la revista \u00ab<a href=\"http:\/\/pathogens.plosjournals.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">PLoS Pathogens<\/a>\u00bb, afirma que la adaptaci\u00f3n del virus a las v\u00edas respiratorias superiores del hombre le permitir\u00e1 infectar a un rango m\u00e1s amplio de tipos de c\u00e9lulas y <strong>extenderse de forma r\u00e1pida por medio de la tos y la simple respiraci\u00f3n,<\/strong> de forma que gana en virulencia y sienta las bases para una pandemia de gripe.<\/p>\n<p style=\"text-align: justify;\">El director del estudio afirma que \u00ablos virus actuales son mucho m\u00e1s parecidos a los de los mam\u00edferos que aquellos que circulaban en 1997, cuando se descubri\u00f3 la enfermedad en Hong Kong&#8230;<\/p>\n<p style=\"text-align: justify;\"><strong><em>Los que circulan en \u00c1frica y Europa se hallan muy cerca de convertirse en virus humanos. <\/em><\/strong><\/p>\n<p style=\"text-align: justify;\">Kawaoka, no obstante, asegura que \u00abla mutaci\u00f3n experimentada por el H5N1 es necesaria, aunque no suficiente, para causar una pandemia viral. Es preciso que concurran otros factores.<\/p>\n<p style=\"text-align: justify;\">En otro estudio publicado en la misma revista, Peter Palese, de la <a href=\"http:\/\/www.mssm.edu\/\" target=\"_blank\" rel=\"noopener noreferrer\">Escuela de Medicina Monte Sinai<\/a>, de Nueva York.<\/p>\n<p style=\"text-align: justify;\">Afirma que encontrar una droga espec\u00edfica para atacar ese amino\u00e1cido y reducir la virulencia del virus \u00abtodav\u00eda es ciencia ficci\u00f3n&#8230; pero reconocer la prote\u00edna espec\u00edfica y el amino\u00e1cido espec\u00edfico podr\u00eda ayudar a los cient\u00edficos a desarrollar eventualmente mejores tratamientos, lo que ser\u00eda un paso importante\u00bb.<\/p>\n<p style=\"text-align: justify;\">El virus fue identificado hace diez a\u00f1os, y las \u00faltimas cifras aportadas por la OMS -referidas a principios de septiembre pasado- cifran en <strong>329 personas las que han contra\u00eddo el virus<\/strong> de la gripe aviar desde 2003, de las cuales <strong>201 han muerto<\/strong>.<\/p>\n<p style=\"text-align: justify;\">Hasta ahora las infecciones se han transmitido a trav\u00e9s del contacto estrecho con las aves, y s\u00f3lo se han registrado algunos contagios de gripe aviar entre familiares de infectados con una interacci\u00f3n cercana con las aves enfermas.<\/p>\n<p><strong><em>Ahora sabemos que el H5N1 puede contagiarse entre humanos.<\/em><\/strong><\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td bgcolor=\"#3b7cff\" height=\"25\" width=\"600\" align=\"center\"><strong><a title=\"Actualidad ACCION del OZONO\" href=\"https:\/\/www.ozono21.com\/actualidad-interna\/accion-del-ozono\/423\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2014\/06\/Noticias-Relacionadas.png\" alt=\"Noticias Relacionadas\" width=\"600\" height=\"25\" border=\"0\"><\/a><\/strong>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><big><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td align=\"center\" width=\"150\" height=\"150\"> <a title=\"Post de GRIPE AVIAR \" href=\"https:\/\/www.ozono21.com\/blog\/?s=gripe+aviar\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\"  src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2012\/02\/Gripe-Aviar-variante-del-virus-contagiosa-y-mortal-para-el-ser-humano-e1452033496977-300x169.jpg\" alt=\" GRIPE AVIAR \" title=\"Post de GRIPE AVIAR \"  width=\"150\" height=\"150\" \/><\/a><\/td>\n<td style=\"text-align: left; 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