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

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
Yoko TakayamaTohru Akahoshi

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.

References

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Citations

Jan 17, 2012·Journal of Medical Microbiology·Juliana M CoelhoAndroulla Efstratiou
Jun 16, 2016·Journal of Microbiological Methods·Monica ImperiRoberta Creti
Jul 25, 2014·Japanese Journal of Infectious Diseases·Fuyuki OkamotoNobuyuki Sera

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