Ha Nguyen Thi Van, Kitajima Masaaki, Hang Nguyen Vo Minh, Matsubara Koichi, Takizawa Satoshi, Katayama Hiroyuki, Oguma Kumiko, Ohgaki Shinichiro
Faculty of Environment, Ho Chi Minh City University of Technology, District 10, Ho Chi Minh City, Vietnam.
Water Sci Technol. 2008;58(12):2403-11. doi: 10.2166/wst.2008.435.
The study attempts to identify the potential routes of bacterial infection via consumption of raw vegetables, drinking water and vegetable-related water in Ho Chi Minh City (HCMC). Vegetables in the markets and restaurants had higher total coliforms and E. coli counts than the vegetables at the vegetable cultivation fields. In search of the potential contamination sources, it was found that vegetables are washed in nearby canals after harvesting. Those canals are contaminated with human and animal excreta, which in turn may contaminate the vegetables. At the markets, although the tap water was found to be free of microbes, contaminated and non-contaminated vegetables are mixed and washed in the same bowl, which may bring about further spreading of infectious bacteria. The results of this study suggested that an integrated countermeasure that incorporates reducing microbial contamination of canals, raising the awareness of microbial infection among the local farmers and wholesalers, and providing enough clean water to the food markets should be implemented to reduce the incidence of food-borne illness in HCMC.
该研究试图确定在胡志明市通过食用生蔬菜、饮用水和与蔬菜相关的水而导致细菌感染的潜在途径。市场和餐馆中的蔬菜总大肠菌群和大肠杆菌数量高于蔬菜种植地的蔬菜。在寻找潜在污染源时，发现蔬菜收获后在附近的运河中清洗。这些运河被人类和动物粪便污染，进而可能污染蔬菜。在市场上，虽然发现自来水没有微生物，但受污染和未受污染的蔬菜在同一个碗中混合清洗，这可能会导致传染性细菌的进一步传播。这项研究的结果表明，应实施一项综合对策，包括减少运河的微生物污染、提高当地农民和批发商对微生物感染的认识，以及为食品市场提供足够的清洁水，以降低胡志明市食源性疾病的发病率。
