Abstract：Objective To investigate the infection status of Vibrio parahaemolyticus in sporadic diarrhea patients and aquatic products sold in markets of Fengtai District, Beijing, and to analyze the correlation between them. Methods A random sampling method was used to collect aquatic products sold in markets and stool specimens of sporadic diarrhea outpatients from intestinal departments in Fengtai District, Beijing from April to October, 2013. Vibrio parahaemolyticus was detected, and pulsed-field gel electrophoresis(PFGE) method was employed for comparing Vibrio parahaemolyticus in stool specimens and aquatic products so as to find out the causes of the high incidence of diarrhea induced by Vibrio parahaemolyticus in Fengtai District. Results The infection rate of Vibrio parahaemolyticus in the sporadic diarrhea patients in Fengtai District was 13.03%. The detection rates showed statistically significant differences among different months (P<0.01) as well as different age groups (P=0.02). The detection rate of Vibrio parahaemolyticus in aquatic products was 32.06%, and it was significantly different among different seasons (P<0.01) and among aquatic products from different markets(P=0.02). But no correlation was found between the PFGE Results of Vibrio parahaemolyticus from sporadic diarrhea patients and aquatic products. Conclusions A direct link between the high incidence of diarrhea induced by Vibrio parahaemolyticus and Vibrio parahaemolyticus infection of aquatic products sold in markets of Fengtai District is not yet fully demonstrated in this study. It is necessary to expand the scope of the study so as to explore the causes of high incidence of diarrhea induced by Vibrio parahaemolyticus.
2017, Vol. 24 
