Epidemiology and drug resistance of acute Vibrio parahaemolyticus infection

Objective To understand the clinical manifestations, epidemiology of acute Vibrio parahaemolyticus infection and analyze the serotypes and drug resistance of isolated strains. Methods The analysis was conducted on the clinical manifestations of acute Vibrio parahaemolyticus infection cases detected from June 2010 to December 2012 and serotyping and drug susceptibility test were conducted for the strains isolated from them. Results The major clinical manifestations of acute Vibrio parahaemolyticus infection included abdominal pain, diarrhea, nausea, vomiting, fever and other typical gastroenteritis. The incidence peak was during August-September. The infection mainly occurred in young adults. The infection was associated with dining together, eating sea foods and raw and under cooked foods. The major serotypes included O3: K6(80%); O1: K1(15.24%) and M1: K1(4.76%). The isolated Vibrio parahaemolyticus strains were highly sensitive to antibiotics, only resistant to ampicillin. Conclusion Vibrio parahaemolyticus infection has became a important public health problem with typical clinical manifestation, obvious seasonality and population and place distribution differences. It is necessary to strengthen the active surveillance and infection control.