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Summary
Alcaligenes faecalis can cause rare but serious blood infections, even after common surgeries like appendectomy. This bacterium, usually harmless in the gut, warrants careful investigation when found in blood cultures.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Clinical Bacteriology
Background:
- Alcaligenes faecalis is a Gram-negative bacterium commonly found in the gastrointestinal tract of healthy individuals.
- Systemic infections caused by Alcaligenes faecalis are considered rare, often leading to underestimation of its pathogenic potential.
Observation:
- This report details a case of Alcaligenes faecalis septicaemia (bloodstream infection) following an appendicectomy procedure.
- The clinical presentation and diagnostic challenges associated with this rare post-operative infection are highlighted.
Findings:
- Blood cultures identified Alcaligenes faecalis as the causative agent of septicaemia.
- Previous literature on Alcaligenes faecalis systemic infections is briefly reviewed, emphasizing the organism's infrequent role in invasive disease.
Implications:
- The findings underscore the importance of not dismissing Alcaligenes faecalis from blood cultures as mere contaminants.
- Careful clinical and microbiological investigation is crucial for accurate diagnosis and appropriate management of potential Alcaligenes faecalis infections.
- This case contributes to the understanding of rare bacterial infections following common surgical procedures.