Resumen

GONZALEZ VALDES, Laura Margarita; ORRACA CASTILLO, Odalys  y  SANABRIA NEGRIN, José Guillermo. Behavior of Influenza-A (H1N1) virus from April to October, 2009, Pinar del Rio. Rev Ciencias Médicas [online]. 2011, vol.15, n.1, pp.59-75. ISSN 1561-3194.

An observational, descriptive and cross-sectional research was conducted through the review of statistical documents, epidemiological and medical assistance records of Influenza-A (H1N1). The diagnosis was confirmed by means of nasopharyngeal smear, using conventional and real time C-reactive protein (CRP) at "Pedro Kouri" National Institute. The most affected municipalities were: Pinar del Rio (53.4%) and Sandino (24.4%), with 63.8% of autochthonous cases and ages between 15-65 (75.9%); observing no differences in sex distribution. In October the cases reached a figure of 29.3%, followed by July and August, from September all cases were autochthonous; 65.5% of the cases were admitted before the first 72 hours with no need of intensive care; 52.9% of the severe cases were admitted 3 days after the onset of symptoms (72.7% with artificial ventilation). Pregnancy, neurological disorders and chronic respiratory diseases showed more incidences; 77.6% presented no antecedents. All cases had fever, cough and rhinorrhea; dyspnea was present in severe cases. The epidemics behaved similar to the rest of the world and the adoption of early and rapid measures favored a good progress in the majority of cases.

Palabras clave : HUMAN INFLUENZA [epidemiology]; HUMAN INFLUENZA [diagnosis]; MEDICAL CARE [methods].

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