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A large outbreak of conjunctivitis caused by a single genotype of Neisseria gonorrhoeae distinct from those causing genital tract infections

Published online by Cambridge University Press:  16 July 2001

D. B. MAK
Affiliation:
Kimberley Public Health Unit, West Kimberley House, Loch St, Derby, Western Australia 6728, Australia
D. W. SMITH
Affiliation:
Division of Microbiology and Infectious Diseases, The Western Australian Centre for Pathology and Medical Research
G. B. HARNETT
Affiliation:
Division of Microbiology and Infectious Diseases, The Western Australian Centre for Pathology and Medical Research
A. J. PLANT
Affiliation:
Division of Health Sciences, Curtin University of Technology, Bentley, WA 6845
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Abstract

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Several epidemics of gonococcal conjunctivitis have occurred in Aboriginal populations in Central Australia. In 1997, the first outbreak in the Kimberley region of Western Australia occurred, spreading to Central Australia with a total of 447 cases. A genotyping method was applied directly to DNA extracted from patient samples to characterize the gonococcus causing the epidemic and to compare it with contemporaneous genital isolates. Those positive conjunctival specimens from Kimberley and Central Australia that could be genotyped were all indistinguishable, but were distinct from the genital gonococci, even when they shared the same auxotype and serotype. This suggested that the outbreak was due to a single genotype of Neisseria gonorrhoeae that had probably been carried between communities by infected individuals. We did not find evidence to support the existence of a genital reservoir of the types causing epidemic gonococcal conjunctivitis.

Type
Research Article
Copyright
© 2001 Cambridge University Press