Epidemiology of ＂Vibrio parahaemolyticus＂ in Southern Taiwan, 2004-2013

Chien-Chou Lin ； Po-Shan Lin ； Li-Li Kou ； Yu-Ping Hong ； Ho-Sheng Wu

《Epidemiology Bulletin》 31卷22期 (2015/11) Pp. 194-195

https://doi.org/10.6525/TEB.20151124.31(22).001

並列摘要

＂Vibrio parahaemolyticus＂ has been the ranked first pathogen that causes bacterial foodborne illness in Taiwan for many years. Since ＂V. parahaemolyticus＂ occurs naturally in warm brackish waters, estuaries, and salt marshes, the fish and shellfish in such environments are easily contaminated with this pathogen. The causes of food poisoning often resulted from eating raw oysters or undercooked fish carrying foodborne pathogens or contamination with pathogens during food handling and cooking processes. Between 2004 and 2013, a total of 7,126 food poisoning outbreaks were reported from southern Taiwan, including Chiayi, Tainan, Kaohsiung, Pingtung and Penhu cities/counties. Of these outbreaks, ＂V. parahaemolyticus＂ was the first leading responsible agent (n=1,262, 18%). The annual average number of patients affected by ＂V. parahaemolyticus＂ was 126, and the monthly average was about 10.5 (range 5.9-14.3), peaking in August. Females (56%) and persons aged 20-44 years (56%) were the most affected group. The prevalence of ＂V. parahaemolyticus＂ infections were 41 per 100,000 population in Pingtung County, followed by 12.6 in Chiayi County, 11.2 in Penhu County, 6.7 in Tainan City, 6.0 in Kaohsiung City, and 3.5 in Chiayi City, respectively. Among the 935 isolates of ＂V. parahaemolyticus＂, serotype K6 predominated (n=507, 54%), followed by serotype K8 (n=147, 15%). The surface temperature of the sea water in southern Taiwan, however, ranged 22.0°C-29.8°C, and was never lower than 15°C over the past 10 years. Despite recent economic growth and improvement in living standards, the food poisoning outbreaks have not decreased. We recommend people working in a food business must follow the business food safety program, including (1) good personal hygiene, such as thoroughly washing and drying hands when handling food; (2) avoidance of cross-contamination, such as keeping raw foods and ready-to-eat foods separate, and using separate, clean utensils, containers and equipment; (3) if staff working in a food handling has gastrointestinal symptoms such as diarrhea and/or vomiting, the restaurant manager must exclude staff with these symptoms from working with food at least for 48 hours until symptoms diminish; and (4) once a food poisoning outbreak occurs, the health agencies must conduct investigation and identify the suspicious foodborne pathogens to prevent the spreading of illness.

並列關鍵字

＂Vibrio parahaemolyticus＂ ； Serotype K6 ； Prevalence of ＂Vibrio parahaemolyticus＂