%0 Journal Article %T Influenza %A Sol¨®rzano-Santos %A Fortino %A Miranda-Novales %A Ma. Guadalupe %J Bolet¨ªn m¨¦dico del Hospital Infantil de M¨¦xico %D 2009 %I Scientific Electronic Library Online %X influenza is a highly contagious acute viral infection of the respiratory tract. it is caused by influenza a, b and c virus. infection occurs at all ages, but during epidemics the morbidity is higher at extremes of life. sick patients demand medical care and hospitalization, consuming limited resources, increasing length of hospital-days and eventually death. recently, in mexico a novel influenza a virus (h1n1) caused an epidemic. with the new virus surveillance, infections due also to seasonal virus were documented. this update highlights recommendations for prevention and treatment of influenza. %K influenza %K prevention %K influenza vaccine %K h1n1 influenza a virus. %U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1665-11462009000500010&lng=en&nrm=iso&tlng=en