Objective To trace the source of a foodborne disease outbreak caused by consuming smoked meat pancakes contaminated with Salmonella enteritidis.Methods Epidemiological investigations were carried out on 8 patients,samples of relevant environment,food and feces were collected,laboratory tests were carried out according to national standards.After bacteria enhancement,suspicious colonies were selected for biochemical identification,and the six strains of Salmonella detected underwent serum agglutination with standard diagnostic sera,drug sensitivity test and pulsed field gel electrophoresis.Result There were 8 cases of this incident,and out of the 6 samples,6 strains of Salmonella enteritidis were isolated.The detection rates of Salmonella in the food,environmental samples,and cases feces were all 100%.The drug sensitivity test results showed that all strains were resistant to 6 drugs,and the drug resistance spectrum was CT―CTX― TET―CIP―AMP―AMS.They were sensitive to CHL,SXT,ETP,MEM,CAZ,CZA,TIG,AZM,and AMI.The PFGE bands of the 6 strains were consistent,with the homology of 100%,and that showed the same clone.Conclusions This incident is a foodborne disease outbreak caused by consuming smoked meat pancakes contaminated with Salmonella enteritidis.
foodborne diseaseSalmonella enteritidistraceability analysisdrug sensitivity testpulse field gel electrophoresis
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