Etiological Survey and Traceability Analysis of a Food Poisoning Incident Caused by Vibrio parahaemolyticus
Objective:To conduct the laboratory test and traceability analysis on a food poisoning at a rural self hosted wedding banquet.Method:Pathogens were tested from stool samples,anal swabs and hand applied swabs collected.Serotyping,3 types of virulent gene detection,broth microdilution method and PFGE typing tests were performed on Vibrio parahaemolyticus strains.Result:There were 10 cases in this epidemic,the interval between the onset of the first and last cases is 4.75 h.Their clinical symptoms mainly included abdominal pain,diarrhea,nausea and vomiting.A total of 5 Vibrio parahaemolyticus strains were detected and identified as three serotypes,four PFGE patterns and the virulence genes profiles were tlh+tdh+trh-.All five strains were resistance to cefazolin.Conclusion:This foodborne disease event was caused by Vibrio parahaemolyticus at a rural self hosted wedding banquet.
Vibrio parahaemolyticusserotypespulsed field gel electrophoresisdrug resistancevirulence genes
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