上海市金山区2012年-2017年沙门菌分布特征及与气象因素的相关性分析

Analysis of the correlation between distribution of Salmonella and meteorological factors in Jinshan District,Shanghai,2012-2017

目的对上海市金山区2012年-2017年沙门菌的血清型分布进行研究并分析阳性菌株检出数和气象因素(温度、降水量)的相关性。方法对2012年-2017年分离到的745株沙门菌进行血清学凝集,采用SAS 9.4软件进行统计学分析。结果 745株沙门菌分属8个血清群和31种血清型,各血清型中B群鼠伤寒沙门菌检出最多,而后依次是D1群肠炎沙门菌,E1群伦敦沙门菌,B群德比沙门菌等。经统计分析,阳性菌株数-温度呈线性正相关,阳性菌株数-降水量也呈线性正相关。结论鼠伤寒和肠炎型为本区常见的沙门菌腹泻菌型。高温、降水等气象因素与沙门菌阳性检出数呈线性正相关,提示注意高温雨季的饮食卫生,警惕相关疾病发生。

Objective To investigate the serotype distribution of Salmonella in Jinshan District of Shanghai from 2012 to 2017 and analyze the correlation with meteorological factors(temperature,precipitation).Methods A total of 745 Salmonella strains isolated from 2012 and 2017 were tested in terms of serotype,and statistical analysis was performed with SAS 9.4 software.Results The 745 strains of Salmonella belong to 8 serogroups and 31 serotypes.Salmonella typhimurium group B is the most common serotype,followed by Salmonella enteritidis group D1,Salmonella London Group E1 and Salmonella Derby group B.Statistical analysis showed that there was a linear positive correlation between the number of positive strains and temperature,and also between the number of positive strains and precipitation.Conclusion S.Typhimurium and S.Enteritidis are the main serotypes.High temperatures,rainfall are positively associated with the detection of Salmonella.Attention should be paid to hot and rainy season.