The clinical severity of human infection with the novel influenza virus A/H1N1v has not been completely defined, especially in HIV/hepatitis C virus (HCV) infected patients. Although most patients develop mild to moderate symptoms, severe disease may occur in a limited proportion of cases. We report the case of a 44-year-old man infected with HIV and HCV with a high CD4 cell count who developed acute respiratory distress syndrome associated with influenza virus A/H1N1v infection. The patient recovered completely after oseltamivir therapy and mechanical ventilation.
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