At the beginning of 2009 the world faced a new epidemic caused by a new subtype of
influenza virus A (H1N1). Mexico was the first country to report a new case concerning the
flu and in a short time, similar cases have been reported in other countries, leaving on alert
health authorities for a pandemic. The study referred to here is a clinical-epidemiological
evaluation of patients with severe acute respiratory syndrome (SARS) caused by influenza
virus A (H1N1) pandemic in the entire state of Para, watching the situation of patients, the
presence of comorbidities, the offered treatment and clinical outcome is to improve the frame
or possible death. This work was a cross-sectional study, retrospective, descriptive and
analytical, whose sample was obtained through the research data via Information System for
Notifiable Diseases (SINAN) based on the notification protocol form the Ministry of Health
Cases of SARS in Para state associated with Influenza A (H1N1) pandemic occurred during
the months of August 2009 to April 2010, with the occurrence of two epidemic waves
(February and August to October/2009 to April/2010). Young patients with a mean age of 19
years, mainly female (64.2%%), women in the third trimester or who had a chronic lung
disease or associated metabolic disease made up the majority of the sample, 28.1% of patients
were from the upstate , 33.3% evolved to death. This work shows the severity of the flu virus
(H1N1) pandemic in the state of Pará especially in patients belonging to risk groups.
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