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- W2378156983 abstract "Objecive To identify the source of infection,route of transmission and risk factors of a cluster of acute gastroenteritis cases in a primary school of Guangzhou.Methods Cases were identified according to the case definition.Descriptive epidemiological approaches and case-control study designs were employed for the analysis.The samples were tested for norovirus by RT-PCR.Results A total of 27 cases of norovirus gastroenteritis were identified in March 28 to 31,2013 and the attack rate was 3.31%(27/816).The peak in morbidity was seen on March 28 at 14:00 to 22:00.Clustering was found in classes.The case-control study revealed that washing hands before meals(OR=0.13,95%CI:0.03~0.63) and wash hands more than 5 times a day(OR=0.26,95%CI:0.10~0.72) were protective factors.A total of 85 samples,including rectal swabs from the patients and Kitchen workers,leftovers and environmental swabs were collected.Five samples were positive for norovirus G Ⅱ detected by RT-PCR.Conclusion This is the acute gastroenteritis outbreak caused by the norovirus genotype II-4.It was a foodborne outbreak in which food was contaminated by the asymptomatic kitchen workers who carried the virus." @default.
- W2378156983 created "2016-06-24" @default.
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- W2378156983 date "2014-01-01" @default.
- W2378156983 modified "2023-09-23" @default.
- W2378156983 title "An epidemiological investigation on a suspected foodborne outbreak of norovirus" @default.
- W2378156983 hasPublicationYear "2014" @default.
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