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Conjunctivitis due to Neisseria sicca: a case report
Ilker Eser1, Alper Akcali, Muserref Tatman-Otkun
1Acibadem Maslak Hospital, Eye Clinic, Istanbul, Turkey.
Abstract:
We report the first case, in Medline-based literature, of conjunctivitis caused by gram negative diplococcus, Neisseria sicca. Although it is not widely accepted as such, isolation from cultures of repeated eye swab samples suggests that N. sicca may be a pathogen in conjunctival infections. Positive culture for this organism should not be readily dismissed. Such conjunctivitis responded favorably to treatment with netilmicin eye drops.
Insights
Neisseria sicca, a gram-negative diplococcus, can cause conjunctivitis. This case highlights its potential role as a pathogen, with successful treatment using netilmicin eye drops.
Area of Science:
- Ophthalmology
- Microbiology
Background:
- Conjunctivitis is a common ocular infection.
- The causative agents of conjunctivitis are diverse, including bacteria.
- Neisseria sicca is a gram-negative diplococcus not typically recognized as a primary conjunctival pathogen.
Observation:
- This report details the first case in Medline-based literature of conjunctivitis caused by Neisseria sicca.
- The diagnosis was supported by repeated positive cultures from eye swab samples.
Findings:
- Neisseria sicca was identified as the causative agent of conjunctivitis.
- The conjunctivitis responded well to topical treatment with netilmicin eye drops.
Implications:
- Neisseria sicca should be considered a potential pathogen in cases of conjunctivitis.
- Clinicians should not dismiss positive cultures for N. sicca in ocular infections.
- This finding expands the spectrum of known bacterial causes of conjunctivitis.
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