Serogroup distribution and drug resistance of Vibrio parahaemolyticus isolated from inland aquatic and commercial environments

Objective To understand the serogroup distribution and drug resistance of Vibrio parahaemolyticus isolated from inland aquatic and commercial environments,provide scientific evidence for prevention and control of foodborne diseases caused by Vibrio parahaemolyticus,and give guidance for rational drug-use. Methods Referring to GB / T4789. 7-2008,Vibrio parahaemolyticus isolated from Jingzhou aquatic and commercial environments was typed with standard serum O-antigen. Drug sensitivity tests were carried out with K-B method. Results 58 strains of Vibrio parahaemolyticus were divided to nine O serogroups by slide agglutination,mainly including O1 group( 22. 41%),O3 group( 22. 41%) and O5 group( 13. 79%). 58 strains of Vibrio parahaemolyticus showed resistant to more than four kinds of antibiotic; 100%resistant to penicillin,ampicillin and amoxicillin,only 100% sensitive to chloramphenicol,and resistant to other 14 kinds of antibiotic in varying degrees. Conclusion Serogroups of Vibrio parahaemolyticus from Chinese inland city—Jingzhou,showed diversified features,and varying degrees of drug resistance. Standardized management of drug-use should be strengthened.