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Azotobacter keratitis

T J Liesegang, D R Jones, N M Robinson

    Archives of Ophthalmology (Chicago, Ill. : 1960)
    |September 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Azotobacter keratitis, a rare eye infection caused by Azotobacter bacteria, was identified in ten cases. These bacteria, previously not known to cause disease, may be misdiagnosed as Moraxella species.

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    Area of Science:

    • Ophthalmology
    • Microbiology
    • Infectious Diseases

    Background:

    • Azotobacter are Gram-negative rods commonly found in soil and water.
    • The genus includes four species: A. beijerinckii, A. chroococcum, A. paspali, and A. vinelandii.
    • Previously, Azotobacter species were not recognized as pathogens in humans, animals, or plants.

    Observation:

    • Ten cases of keratitis (corneal inflammation) attributed to Azotobacter were documented between 1972 and 1980.
    • The cases were identified at Baylor College of Medicine and Cullen Eye Institute in Houston.
    • Azotobacter are large, pleomorphic, aerobic bacteria.

    Findings:

    • This study reports Azotobacter species as a causative agent of human keratitis.
    • The findings expand the known pathogenic potential of the Azotobacter genus.

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  • Morphological and biochemical similarities may lead to misidentification.

    • Implications:

    • Clinicians should consider Azotobacter as a potential cause of keratitis, especially in cases with atypical presentations.
    • Accurate identification of Azotobacter is crucial for appropriate treatment and to avoid misdiagnosis.
    • Further research is needed to understand the pathogenesis and epidemiology of Azotobacter keratitis.