南京市2018年食源性疾病主动监测流行病学特征

Pathogens isolated form foodborne diseases cases in Nanjing city, 2018:analysis on active surveillance data

目的通过对江苏省南京市2018年食源性疾病主动监测病原学结果分析,了解食源性疾病流行特征,为食源性疾病监测、暴发预警及防控策略提供病原学数据。方法在南京市17家主动监测哨点医院中对收集病例信息,并采集粪便样本进行食源性病原体检测。结果 2018年食源性疾病共采集检测1 246份粪便样本,共分离出阳性菌株110株,总体检出率为8.83%,其中对442份样本检测病毒,病毒阳性38例,检出率为8.60%。不同年龄组之间沙门菌检出率(χ^(2)=13.921,P <0.001)和副溶血性弧菌检出率(χ^(2)=22.836,P <0.001)差异有统计学意义,不同年龄组之间诺如病毒检出率(χ^(2)=30.287,P <0.001)和病毒总体检出率(χ^(2)=44.635,P <0.001)差异有统计学意义。结论基本掌握南京市食源性疾病流行特征,针对不同人群及突出问题开展专项监测研究,加强完善食品安全风险监测网络建设。

Objective To explore prevalent pathogens of foodborn diseases in Nanjing city, Jiangsu province in 2018 and to provide evidences for active surveillance and early warning on foodborn diseases. Methods Clinical information and stool specimens for pathogen detection were collected among 1 246 foodborn disease patients at 17 sentinel hospitals for active surveillance on foodborn disease in the city during 2018. Results Totally 110 pathogenic strains were isolate from all the specimens and the overall detection rate of pathogen was 8.83%. Among 442 specimens with virus detections, 38(8.60%)were positive for pathogenic virus. There were statistically significant differences in the detection rate of Salmonella(χ^(2) = 13.921, P < 0.001), Vibrio parahaemolyticus(χ^(2) = 22.836, P < 0.001), and norovirus(χ^(2) = 30.287, P < 0.001) and in the overall detection rate of pathogenic virus(χ^(2) = 44.635, P < 0.001) among the foodborn disease patients at various ages.Conclusion The results of the active surveillance could contribute to analyzing prevalence characteristics of foodborn diseases and developing targeted prevention measures.