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Eur J Clin Microbiol Infect Dis. 2009 Mar;28(3):305-8. doi: 10.1007/s10096-008-0614-3. Epub 2008 Aug 21.

A foodborne outbreak of a group A streptococcal infection in a Japanese university hospital.

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  • 1Department of Laboratory Medicine, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 228-8555, Japan. yoko@med.kitasato-u.ac.jp

Abstract

We describe an outbreak of foodborne tonsillopharyngitis caused by group A streptococcus (GAS), a rarely reported event that occurred during a campus orientation meeting in Japan. Of 461 students and staff members who had eaten boxed lunches during a meeting at Kitasato University, 298 developed sore throat and/or fever, and 285 underwent medical examination. Amoxicillin was prescribed when throat culture specimens yielded GAS. The attack rate was 64.6%. T-25 GAS was isolated from 150 examined persons. Of 65 patients who received amoxicillin for 3 days, GAS was eradicated before the first follow-up throat culture in 46 (70.8%) cases. Susceptibility was demonstrated to penicillins, cephalosporins, and macrolides in 86 GAS isolates obtained more than once from a given patient. GAS strains isolated at various time points were indistinguishable by pulsed-field gel electrophoresis (PFGE), and prtF1 was present. GAS strains were often difficult to eradicate because of a short initial treatment period, patient compliance problems, and the presence of prtF1.

PMID:
18716803
[PubMed - indexed for MEDLINE]
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