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Alcaligenes xylosoxidans subsp xylosoxidans in children with chronic otorrhea

S M Wintermeyer1, M C Nahata

  • 1College of Pharmacy, Ohio State University, Columbus 43210, USA.

Insights

Aureus X (AXX) is a significant pathogen, not a contaminant, especially with infection symptoms. Treatment requires considering AXX and other pathogens, with several antibiotics showing clinical utility despite variable sensitivity.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Clinical Diagnostics

Background:

  • Aureus X (AXX) is often found with other pathogens, potentially masking its clinical importance.
  • Distinguishing AXX as a pathogen versus a colonizer is crucial for effective treatment.

Observation:

  • In pediatric patients, AXX in ear fluid necessitates careful consideration.
  • Concurrent isolation of other pathogens alongside AXX is common.

Findings:

  • AXX should be treated as a pathogen when clinical signs of infection are present.
  • Antibiotic selection must account for the in vitro activity against both AXX and co-infecting organisms.
  • Despite variable sensitivity, several antibiotics demonstrate clinical usefulness against AXX.

Implications:

  • Overlooking AXX can lead to delayed or inappropriate treatment.
  • Tailored antibiotic regimens based on susceptibility testing are essential for pediatric ear infections involving AXX.
  • Further research into AXX's variable antibiotic sensitivity is warranted.

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