Variation in phenotypic expression of the opa outer membrane protein and lipooligosaccharide of neisseria meningitidis serogroup c causing periorbital cellulitis and bacteremia

Christian C. Patrick, Glenn T. Furuta, Morven Edwards, Michele Estabrook, Milan S. Blake, Carol J. Baker

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Expression of the Opa outer membrane protein varies widely among isolates of Neisseria meningitidis; the clinical significance of this variation is unclear. A sialic-acid acceptor is present in the lipooligosaccharide of some strains of Neisseria and has been shown to render Neisseria gonorrhoeae serum-resistant. We report the case of a patient who had an unusual clinical manifestation of infection due to N. meningitidis serogroup C, periorbital cellulitis with concomitant bacteremia. Clinical isolates from the blood and aspirate of the periorbital cellulitis were identical except for the phenotypic expression of the Opa outer membrane protein in the isolate from the periorbital cellulitis and in the lipooligosaccharide phenotype of the sialic-acid acceptor as defined by monoclonal antibodies. We discuss the laboratory and clinical implications of these findings.

Original languageEnglish
Pages (from-to)523-527
Number of pages5
JournalClinical Infectious Diseases
Volume16
Issue number4
DOIs
StatePublished - Apr 1993

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