Abstract
BackgroundEscherichia coli has appeared as an important opportunistic pathogen responsible for nosocomial infections in patients with immunodeficiency, particularly in leukemia patients. New Delhi metallo-beta-lactamase is an enzyme originally found in Enterobacteriaceae.Case presentationIn this study, 80 isolates of Escherichia coli and Klebsiella pneumoniae were collected over the course of 2 years from two medical centers in Tehran, Iran. Production of carbapenemase was detected in the isolates using modified Hodge test. New Delhi metallo-beta-lactamase-1 genes were detected by polymerase chain reaction amplification with specific primers. Two New Delhi metallo-beta-lactamase-1-producing Escherichia coli strains were isolated from two Iranian patients with leukemia. These two patients were 6 and 15 years old, one female and the other male, from two oncology centers in Iran. The isolates were resistant to carbapenems (imipenem, meropenem), and two isolates were positive for carbapenemase production by modified Hodge test.ConclusionsThe emergence of New Delhi metallo-beta-lactamase-1-producing Escherichia coli is a threat for leukemia patients in oncology and hematology departments. We conclude that the incidence of multidrug resistant pathogens has increased among patients with leukemia and is life threatening.
Highlights
ConclusionsThe emergence of New Delhi metallo-beta-lactamase-1-producing Escherichia coli is a threat for leukemia patients in oncology and hematology departments
The globally increasing prevalence of New Delhi metalloβ-lactamase-1 (NDM-1)-producing Enterobacteriaceae is a concerning phenomenon in immunocompromised patients
The emergence of New Delhi metallo-beta-lactamase-1-producing Escherichia coli is a threat for leukemia patients in oncology and hematology departments
Summary
The emergence of New Delhi metallo-beta-lactamase-1-producing Escherichia coli is a threat for leukemia patients in oncology and hematology departments. We conclude that the incidence of multidrug resistant pathogens has increased among patients with leukemia and is life threatening
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