An analysis of 332 fatalities infected with pandemic 2009 influenza A (H1N1) in Argentina.

Background: The apparent high number of deaths in Argentina during the 2009 pandemic led to concern that the influenza A H1N1pdm disease was different there. We report the characteristics and risk factors for influenza A H1N1pdm fatalities.

Methods: We identified laboratory-confirmed influenza A H1N1pdm fatalities occurring during June-July 2009.