Analysis of foodborne diseases outbreaks in schools from 2011 to 2020 in Henan Province
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摘要:
目的 分析河南省2011—2020年学校食源性疾病暴发事件的流行病学规律及特点,为有效防控学校食源性疾病暴发事件提供依据。 方法 对国家食品安全风险评估中心的食源性疾病暴发监测系统报告的2011—2020年河南省学校食源性疾病暴发事件进行流行病学统计分析。 结果 河南省10年间共报告学校食源性疾病暴发事件47起,累计发病人数1 258人,住院人数701人,死亡1人。河南省学校食源性疾病暴发事件报告起数前4位的城市为郑州市、驻马店市、信阳市,新乡市。学校食源性疾病事件高峰期是6和9月。中学食堂和小学食堂导致的事件数最多(均为12起)。粮食制品引起的学校食源性疾病上报事件数和发病人数最多(14起,371人)。致病菌及其毒素是引起学校食源性疾病暴发事件的主要病原因子,占查明原因事件数的78.26%。引起学校食源性疾病暴发事件最多的致病菌是蜡样芽孢杆菌,引起发病人数最多的致病因素是致泻大肠埃希菌,引发死亡病例的致病因素是毒蘑菇。除原因不明的事件外,加工不当是导致学校食源性疾病暴发事件的主要环节。 结论 中小学生是学校食源性疾病高发群体,应加强夏秋季学校食堂的监督和管理,预防粮食类食品加工储存不当导致的细菌性食源性疾病暴发事件。 Abstract:Objective To analyze the epidemiological characteristics of school foodborne disease outbreaks in Henan Province from 2011 to 2020 and to provide the basis for effective prevention and control of school foodborne disease outbreaks. Methods The outbreaks of foodborne diseases in schools in Henan Province reported by the foodborne disease outbreak surveillance system from 2011 to 2020 were statistically analyzed. Results A total of 47 outbreaks of school foodborne diseases were reported in Henan province in the past 10 years, with a total of 1 258 cases, 701 hospitalizations and 1 death. Zhengzhou, Zhumadian, Xinyang and Xinxiang were the top 4 cities in Henan Province in terms of the number of school foodborne disease outbreaks reported. The peak of foodborne illness incidents in schools was in June and September. The largest number of incidents occurred in middle school canteens and primary school canteens(all 12). The number of reported incidents (12) and the number of cases of foodborne diseases (371) in schools caused by cereals and their products were the largest. Pathogenic bacteria and their toxins were the main pathogenic factors that caused the outbreaks of foodborne diseases in schools, accounting for 78.26% of the identified causes. Bacillus cereus was the top pathogens causing foodborne diseases outbreaks in schools. The pathogenic factor that caused the largest number of cases was Diarrheogenic Escherichia Coli, and the pathogenic factor that caused the death cases was poisonous mushrooms. Apart from unexplained incidents, improper processing was the main link leading to foodborne diseases outbreaks in schools. Conclusion The primary and middle school students are the group with high incidence of foodborne diseases in schools. The supervision and management of school canteen should be strengthened in summer to prevent the outbreak of bacterial foodborne diseases caused by improper processing and storage of grain food. -
Key words:
- Food contamination /
- Disease outbreaks /
- Public health /
- Poisoning /
- Epidemiologic studies
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表 1 河南省2011—2020年学校食源性疾病暴发事件特征分布
Table 1. Distribution of different characters of school foodborne disease outbreaks in Henan Province from 2011 to 2020
组别 选项 上报事件数(n=47) 发病人数(n=1 258) 住院人数(n=701) 年份 2011 2(4.26) 43(3.42) 25(3.57) 2012 2(4.26) 37(2.94) 28(3.99) 2013 2(4.26) 243(19.32) 243(34.66) 2014 2(4.26) 111(8.82) 47(6.70) 2015 3(6.38) 108(8.59) 60(8.56) 2016 3(6.38) 15(1.19) 6(0.86) 2017 8(17.02) 154(12.24) 45(6.42) 2018 9(19.15) 145(11.53) 54(7.70) 2019 8(17.02) 308(24.48) 178(25.39) 2020 8(17.02) 94(7.47) 15(2.14) 地区 郑州市 7(14.89) 154(12.24) 49(6.99) 驻马店市 7(14.89) 72(5.72) 3(0.43) 信阳市 6(12.77) 112(8.90) 3(0.43) 新乡市 5(10.64) 255(20.27) 222(31.67) 漯河市 4(8.51) 38(3.02) 28(3.99) 洛阳市 3(6.38) 115(9.14) 70(9.99) 焦作市 2(4.26) 92(7.31) 22(3.14) 开封市 2(4.26) 178(14.15) 138(19.69) 南阳市 2(4.26) 70(5.56) 22(3.14) 平顶山市 2(4.26) 32(2.54) 32(4.56) 三门峡市 2(4.26) 10(0.79) 0 周口市 2(4.26) 50(3.97) 50(7.13) 鹤壁市 1(2.13) 56(4.45) 56(7.99) 济源市 1(2.13) 4(0.32) 4(0.57) 商丘市 1(2.13) 20(1.59) 2(0.29) 月份 1 2(4.26) 52(4.13) 4(0.57) 2 0 0 0 3 2(4.26) 38(3.02) 38(5.42) 4 4(8.51) 79(6.28) 50(7.13) 5 4(8.51) 64(5.09) 8(1.14) 6 10(21.28) 240(19.08) 79(11.27) 7 2(4.26) 12(0.95) 4(0.57) 8 2(4.26) 81(6.44) 10(1.43) 9 10(21.28) 328(26.07) 237(33.81) 10 6(12.77) 191(15.18) 141(20.11) 11 3(6.38) 38(3.02) 0 12 2(4.26) 135(10.73) 130(18.54) 注:()内数字为构成比/%。 表 2 河南省2011—2020年学校食源性疾病暴发事件学校类型分布
Table 2. School distribution of foodborne disease outbreaks in Henan Province from 2011 to 2020
学校类型 上报事件数(n=47) 发病人数(n=1 258) 住院人数(n=701) 中学食堂 12(25.53) 387(30.76) 218(31.10) 小学食堂 12(25.53) 238(18.92) 58(8.27) 托幼机构食堂 10(21.28) 321(25.52) 165(23.54) 大学食堂 9(19.15) 280(22.26) 256(36.52) 培训机构食堂 4(8.51) 32(2.54) 4(0.57) 注:托幼机构包括幼儿园、午托班;中学包括初级中学、高级中学、职业初中、完全中学、九年一贯制学校、十二年一贯制学校;大学包括综合大学和专科大学、学院;()内数字为构成比/%。 表 3 河南省2011—2020年学校食源性疾病暴发事件原因食品分布
Table 3. Food distribution of school foodborne disease outbreaks in Henan Province from 2011 to 2020
原因食品分类 上报事件数(n=47) 发病人数(n=1 258) 住院人数(n=701) 粮食制品 14(29.79) 371(29.49) 117(16.69) 混合食品 7(14.89) 161(12.80) 24(3.42) 蔬菜与蔬菜制品 6(12.77) 162(12.88) 151(21.54) 多种食品 5(10.64) 97(7.71) 0 肉与肉制品 5(10.64) 258(20.51) 222(31.67) 蛋与蛋制品 1(2.13) 9(0.72) 0 饮料类 1(2.13) 56(4.45) 56(7.99) 不明食品 8(17.02) 144(11.45) 131(18.69) 注:()内数字为构成比/%。 表 4 河南省2011—2020年学校食源性疾病暴发事件致病因素分布
Table 4. Distribution of pathogenic factors of school foodborne disease outbreaks in Henan Province from 2011 to 2020
致病因素 上报事件数(n=47) 发病人数(n=1 258) 住院人数(n=701) 致病菌及其毒素 18(38.30) 722(57.39) 432(61.63) 蜡样芽胞杆菌 5(10.64) 244(19.40) 41(5.85) 致泻大肠埃希菌 4(8.51) 260(20.67) 186(26.53) 金黄色葡萄球菌 2(4.26) 15(1.19) 2(0.29) 沙门菌 2(4.26) 38(3.02) 38(5.42) 志贺菌 2(4.26) 64(5.09) 64(9.13) 其他细菌类 3(6.38) 101(8.03) 101(14.41) 有毒植物及其毒素 4(8.51) 143(11.37) 138(19.69) 皂甙和血球凝集素 3(6.38) 139(11.05) 134(19.12) 毒蕈毒素 1(2.13) 4(0.32) 4(0.57) 化学性-亚硝酸盐 1(2.13) 25(1.99) 25(3.57) 不明因素 24(51.06) 368(29.25) 106(15.12) 注:()内数字为构成比/%。 表 5 河南省2011—2020年学校食源性疾病暴发事件引发环节因素分布
Table 5. Distribution of triggering factors of school foodborne disease outbreaks in Henan Province from 2011 to 2020
引发环节因素 上报事件数(n=47) 发病人数(n=1 258) 住院人数(n=701) 加工不当 10(21.28) 455(36.17) 361(51.50) 存储不当 7(14.89) 220(17.49) 92(13.12) 交叉污染 5(10.64) 121(9.62) 59(8.42) 误食误用 2(4.26) 29(2.31) 29(4.14) 原料(辅料)污染或变质 2(4.26) 95(7.55) 29(4.14) 原因不明 21(44.68) 338(26.87) 131(18.69) 注:()内数字为构成比/%。 -
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