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Gram-negative rod

Alcaligenes faecalis: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

May 10, 2026 by Medical Lab Notes
Alcaligenes faecalis growth on MacConkey agar

Introduction Alcaligenes faecalis is a Gram-negative, aerobic, rod-shaped bacterium primarily found in water and soil, but also as a commensal in the human intestinal tract. While it is generally nonpathogenic, it is a significant opportunistic pathogen, particularly in hospital settings where it thrives in moist …

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Categories Biochemistry Tags aerobic, Alcaligenes faecalis, alkaline reaction, arsenic detoxification, Bacteremia, Bacteria, Beta-lactamase, Biofilm, Bioremediation, Blood Agar, Carbapenems, Catalase positive, Cystic fibrosis, denitrification, Disinfection, environmental bacteria, fruity odor, GNB, GNR, Gram-negative rod, Hand hygiene, hospital sinks, Immunocompromised, MacConkey agar, MALDI-TOF MS, Medicallabnotes, Medlabsolutions, Medlabsolutions9, Meningitis, Microhub, Motile, mruniversei, multidrug resistant, nebulizers, nitrogen cycle, non-fermentative, non-lactose fermenter, Nosocomial infection, Opportunistic pathogen, oxidase positive, Peritonitis, peritrichous flagella, rRNA sequencing, soil, Sterilization, trimethoprim-sulfamethoxazole, Universe84a, Urinary tract infection, water

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