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JIANG Ying-ci, MA Fei-fei, LI Cong, CAI Yong-bin, CHEN Li-ling, ZHANG Jun, LIU Hui-hui. Field epidemiologic survey of outbreak of norovirus infection in a middle school in Suzhou[J]. Disease Surveillance, 2015, 30(12): 1070-1071. DOI: 10.3784/j.issn.1003-9961.2015.12.019
Citation: JIANG Ying-ci, MA Fei-fei, LI Cong, CAI Yong-bin, CHEN Li-ling, ZHANG Jun, LIU Hui-hui. Field epidemiologic survey of outbreak of norovirus infection in a middle school in Suzhou[J]. Disease Surveillance, 2015, 30(12): 1070-1071. DOI: 10.3784/j.issn.1003-9961.2015.12.019
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Field epidemiologic survey of outbreak of norovirus infection in a middle school in Suzhou

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  • On 17 March 2014, an outbreak of diarrhea and vomiting occurred in a middle school in Suzhou, Jiangsu province. Field epidemiologic survey found 66 cases in 23 classes, the attack rate was 3.5%(66/1904). The incidence curves suggested a human to human transmission mode. After the vomiting of the first cases in 9 dormitories, the secondary cases occurred within incubation period in 7 dormitories(RR=15,95% CI:2.1-103). NorovirusⅠwas detected in 4 samples collected from 5 students. Vomiting and aerosol spread might be the risk factor for the outbreak in the dormitory. The school should strengthen the disinfection and isolate suspect cases in time.
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