México: surto de gripe suína

[http://www.oem.com.mx/laprensa/notas/n1141988.htm]
[http://www.expresomatamoros.com/xlocal.php?subaction=showfull&id_fixed=1241004470&archive=&start_from=&ucat=1&go=Local][http://www.jornada.unam.mx/2009/04/29/index.php?section=politica&article=005n1pol]

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