广西食源性沙门菌主动监测网建立及其结果分析

Establishment and data analysis of foodborne Salmonella infection active surveillance network in Guangxi

目的:建立食源性沙门菌疾病主动监测,发现沙门菌污染和疾病发生关系,为食源性沙门菌溯源分析和消费预警提供科学依据。方法:食品中沙门菌检验依据《中华人民共和国国家标准食品卫生微生物学检验方法沙门菌检验》(GB/T4789.4-2008);腹泻标本中沙门菌检验参照国际沙门菌监测(GSS)提供的方法。结果:10个监测点共检出沙门菌85株33种血清型,其中食品株61株28种血清型,人原株24株9种血清型。12类食品中有8类食品检出沙门菌,其中生畜禽肉是沙门菌污染高危食品,检出率达41.67%,食品种类间检出率差异有统计学意义(χ2=164.65,P<0.005),地区污染分布无统计学意义(χ2=0.189,P>0.05)。结论:食源性沙门菌污染和疾病发生较重,应加强和完善主动监测工作,是防控和降低食源性沙门菌疾病发生的重要措施。

Objective：The foodborne Salmonella infection active surveillance network was established in Guangxi to conduct active surveillance for foodborne Salmonella infections,identify the association between Salmonella contamination and diseases,and improve the early warning capacity through disseminating food safety information.Methods：Food samples were examined for Salmonella in accordance with the national standard GB/T4789.4-2008.Fecal samples from diarrheal patients were tested as specified by the Global Salm-Surv（GSS） guidelines.Results：In 10 surveillance sites,a total of 85 Salmonella isolates were detected,61（including 28 serotypes） from food and 24（9 serotypes） from humans.The pathogen was positive in 8 of 12 kinds of food tested,with the highest positive rate（41.67%） in raw meat and poultry.There were significant differences（χ2=164.65,P0.005）in the detection rate between kinds of food,but no differences（χ2=0.189,P0.05）between regions.Conclusion：Salmonella contamination and infection remain an important health challenge in Guangxi.Enhanced active surveillance is essential for developing prevention and control strategies which can reduce the burden of forborne Salmonella diseases.