Abstract:Objective To analyze the epidemiological characteristics of norovirus gastroenteritis clusters in Jinshan District. Methods Epidemiological features and pathogen distribution of clusters of norvirus gastroenteritis in Jinshan District in 2014 were statistically analyzed. All statistics were conducted by software Microsoft Excel 2007 and SPSS17.0. Results Totally 7 clusters of norovirus gastroenteritis were reported in Jinshan District in 2014, involving 187 patients. The attack rates ranged from 16.67% to 72.97%, with an average attack rate of 48.32%.The cases occurred in primary schools (57.14%), middle schools(14.29%), nursing homes (14.29%) and kindergartens (14.29%).The 7 clusters all occurred in winter, and the main clinical manifestations were vomiting(89.30%), abdominal pain or vague abdominal discomfort(53.48%). The duration of each clustered event was positively correlated with non-prompt case handling (the gap between the onset of the first case and the first investigation time) (rs=0.96,P=0.0005). Five clusters were caused by GⅡ norovirus and 1 cluster was caused by GⅠ norovirus. 1 cluster was induced by food contamination, and the other 6 clusters were mainly transmitted through person-to-person close contact. Conclusions GⅡ norovirus is the main pathogen for the clusters of nonbacterial gastroenteritis in Jinshan District.Winter is the peak season. Schools, kindergartens and nursing homes are key places for norovirus gastroenteritis prevention and control.
刘天, 宋灿磊, 朱建明, 杜荐如, 王新科. 金山区2014年诺如病毒聚集性胃肠炎疫情流行病学分析[J]. 实用预防医学, 2017, 24(9): 1048-1050.
LIU Tian, SONG Can-lei, ZHU Jian-ming, DU Jian-ru, WANG Xin-ke. Epidemiological analysis on the clusters of norvirus gastroenteritis in Jinshan District, 2014. , 2017, 24(9): 1048-1050.