Abdulkerim Yildiz, Murat Albayrak, Harika Okutan, Fatma Aybala Altay, Cigdem Pala Ozturk and Okan Yayar
H1N1 is an influenza A virus which is a member of the orthomyxoviridea family. Severe influenza A virus (H1N1) infection is associated with risk factors such as pregnancy, immunosuppression and obesity. Acute Myeloblastic Leukaemia (AML) is the most common acute leukaemia in adults. Immunosuppressed patients, such as those with AML, are more susceptible to infection with influenza and infection-associated complications. The case is here presented of a patient with AML where pneumonia and acute respiratory distress syndrome (ARDS) due to H1N1 infection during chemotherapy led to death on the 3rd day of treatment.