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Published on: February 23, 2014
Lung Infection Due to Species Infrequently Isolated in the Community Setting: Klebsiella variicola and Acinetobacter
Mauro Geller1,2, Mendel Suchmacher3, Aline Sitnoveter4
1Department of Immunology, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, BRA.
Abstract:
The authors report a case of pulmonary infection caused by two typically nosocomial bacterial agents, Klebsiella variicola and Acinetobacter baumannii, simultaneously evidenced in a 65-year-old male patient from the community. Both diagnoses were established after culture and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) analysis of sputum, and the patient was successfully treated with oral levofloxacin, with microbiological eradication subsequently confirmed by three negative follow-up sputum cultures. The singularity of this case challenges the conventional paradigm distinguishing community- and hospital-acquired infections and underscores the importance of maintaining a high index of suspicion for atypical pathogens in routine clinical practice.
Insights
This case study highlights a rare community-acquired pulmonary infection caused by nosocomial bacteria Klebsiella variicola and Acinetobacter baumannii. The patient recovered fully after levofloxacin treatment, challenging traditional infection classification.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Medicine
Background:
- Nosocomial (hospital-acquired) bacterial infections are typically distinct from community-acquired infections.
- Klebsiella variicola and Acinetobacter baumannii are commonly associated with hospital settings.
- Pulmonary infections require accurate etiological diagnosis for effective treatment.
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