Family outbreak of dysentery caused by a rhamnose non-fermenting, ONPG-negative strain of Shigella sonnei phage type 6.
Three members of a Scottish family, with no history of foreign travel but who had recently visited Bristol, were infected by a strain of Shigella sonnei of phage type 6 (PT 6) that did not ferment rhamnose and was negative for o-nitrophenyl-beta-D-galactopyranoside (ONPG). The incident exposed limitations associated with commercial systems for the identification of strains of S. sonnei with atypical biochemical properties.
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Ninewells Hospital and Medical School, Dundee. davido@tuht.scot.nhs.uk
Mather
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Cheasty
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D000328:Adult; D015373:Bacterial Typing Techniques; D003470:Culture Media; D004196:Disease Outbreaks; D018562:Disease Transmission, Infectious; D004405:Dysentery, Bacillary / Q000175:diagnosis* / Q000453:epidemiology / Q000382:microbiology / Q000635:transmission*; D005190:Family; D005260:Female; D006801:Humans; D008297:Male; D009598:Nitrophenylgalactosides / Q000032:analysis; D012606:Scotland; D012764:Shigella sonnei / Q000145:classification* / Q000302:isolation & purification
D003470:Culture Media; C055012:2-nitrophenylgalactoside; D009598:Nitrophenylgalactosides