MIP and infection: Infection remains a major problem in cancer patients and neutropenic fever as a common complication of anti neoplastic chemotherapy make these patients more susceptible for infections.20,21 Among several bacterial agents which have been detected in cancer patients,22 L. pneumophila ‎is considered as an important cause of infections in such patients.7 Here, we designed our study to detect of the mip gene of L. pneumophila in urine and serum samples of neutropenic febrile patients with haematological malignancies by PCR.