Results of serological identification of Vibrio parahaemolyticus.

Aim To identify the main serotype of Vibrio parahaemolyticus strains separated from food poisonings patients. Methods According to the method of GB/T4789.7 -2003,Vibrio parahaemolyticus was isolated and serological identified from samples. Results Totally 599 Vibrio parahaemolyticus strains were isolated,including 11 serum group. O3,O1,O4 and O5 were the predominant serotypes,occupied 78.62%. Isolates with serotype O3,O1 and O4 predominated in food poisonings,454 strains respectively were 61.67%、12.33%、9.69%; While isolates with serotype O3,O1,O4 and O5 predominated in the polluted food and marine product,145strains respectively were 24.83% 、12.41% 、10.34% 、8.97%. Conclusion Serotype O3,O1,O4 were the predominant serotypes in the separated Vibrio parahaemolyticus strains; Serotype O7,O9,O10 were not detected in food poisonings samples,while serotype O1～ O11 were all in he polluted food and marine product samples.