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Canadian Journal of Infectious Diseases and Medical Microbiology
Volume 26, Issue 5, Pages 277-279
Case Report

Delftia Acidovorans: A Rare Pathogen in Immunocompetent and Immunocompromised Patients

Huseyin Bilgin,1 Abdurrahman Sarmis,2 Elif Tigen,1 Guner Soyletir,2 and Lutfiye Mulazimoglu1

1Marmara University School of Medicine, Infectious Diseases and Clinical Microbiology, Turkey
2Marmara University School of Medicine, Department of Microbiology, Istanbul, Turkey

Copyright © 2015 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Delftia acidovorans is an aerobic, nonfermenting Gram-negative bacillus. It is usually a nonpathogenic environmental organism and is rarely clinically significant. Although D acidovorans infection most commonly occurs in hospitalized or immunocompromised patients, there are also several reports documenting the infection in immunocompetent patients. The present article describes a B cell lymphoblastic leukemia patient with D acidovorans pneumonia who was successfully treated with antibiotic therapy. The present report indicates that unusual pathogens may be clinically significant in both immunocompromised and immunocompetent patients. D acidovorans is often resistant to aminoglycosides; therefore, rapid detection of this microorganism is important.