Abstract:
:A Salmonella Enteritidis (SE) outbreak in Japan was investigated with an observational study, analytical epidemiology and bacteriological examination (including phage typing). The outbreak occurred among 96 schoolchildren, and was caused by SE phage type 1. The outbreak source was dessert buns served at a school lunch (RR 42.55, 95 % CI 5.93-305.11, P < 0.001). The buns were probably cross-contaminated from eggs from a factory with a history of SE-contaminated products. The incubation period was longer than usual (3-16 days, median 8 days). A low contaminating dose may account for the long incubation period and low attack rate. Outbreak detection was hampered by the absence of routine Salmonella surveillance in Japan. The investigation was complicated by concurrent illnesses from other SE phage types. It was successful, in part, because adequate food samples were available for microbiological testing.
journal_name
Epidemiol Infectjournal_title
Epidemiology and infectionauthors
Matsui T,Suzuki S,Takahashi H,Ohyama T,Kobayashi J,Izumiya H,Watanabe H,Kasuga F,Kijima H,Shibata K,Okabe Ndoi
10.1017/s0950268804002778subject
Has Abstractpub_date
2004-10-01 00:00:00pages
873-9issue
5eissn
0950-2688issn
1469-4409journal_volume
132pub_type
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