Khurana Sumeeta, Taneja Neelam, Thapar Rajni, Sharma Meera, Malla Nancy
Department of Parasitology, PGIMER, Chandigarh, India.
Trop Gastroenterol. 2008 Oct-Dec;29(4):207-9.
Intestinal infection is still an important public health problem in developing countries like India. Food handlers may be infected by a wide range of enteropathogens and have been implicated in the transmission of many infections to the public in the community and to patients in hospitals.
To study the presence of enteropathogenic bacteria and parasites in food handlers working in the food service establishments of a tertiary care centre in North India.
The stool samples received from food handlers during January 2001 to December 2006 were examined by wet mount, iodine mount and modified acid fast staining directly and after formol ether concentration technique for parasites. For enteropathogenic bacteria, samples were inoculated onto MacConkey's agar, Deoxycholate Citrate Agar, Xylose Lysine Deoxycholate agar (XLD) as per the WHO protocol.
During the years 2001-2006 respectively, 8.75%, 16%, 1.4%, 6.75%, 2.56% and 6.75% food handlers were infected with enteropathogens. The parasitic infections in our study were 1.3 to 7% while the enteropathogenic bacteria were reported from 0% to 13.3% during the years 2001-6. Giardia was the most common parasite while Shigella was the most common bacteria isolated from food handlers. During the year 2001, there was an outbreak of ETEC in the neonatal ICU, Advanced Paediatric Centre, PGIMER, which was traced back to a food handler involved in the preparation of the milk feed.
Routine screening of food handlers is a valuable tool for prevention of nosocomial food-borne infections.
在印度这样的发展中国家，肠道感染仍是一个重要的公共卫生问题。食品从业人员可能会被多种肠道病原体感染，并被认为在社区中将许多感染传播给公众以及在医院中将感染传播给患者。
研究印度北部一家三级护理中心食品服务机构中食品从业人员肠道致病细菌和寄生虫的存在情况。
对2001年1月至2006年12月期间从食品从业人员处收到的粪便样本直接进行湿片、碘染色和改良抗酸染色检查，并在经甲醛乙醚浓缩技术处理后检查寄生虫。对于肠道致病细菌，按照世界卫生组织的方案将样本接种到麦康凯琼脂、脱氧胆酸盐柠檬酸盐琼脂、木糖赖氨酸脱氧胆酸盐琼脂（XLD）上。
在2001年至2006年期间，分别有8.75%、16%、1.4%、6.75%、2.56%和6.75%的食品从业人员感染了肠道病原体。在我们的研究中，2001年至2006年期间寄生虫感染率为1.3%至7%，而肠道致病细菌报告率为0%至13.3%。贾第虫是最常见的寄生虫，而志贺氏菌是从食品从业人员中分离出的最常见细菌。2001年，在PGIMER的新生儿重症监护病房、高级儿科中心发生了一起产毒性大肠杆菌疫情，追溯到一名参与制备牛奶饲料的食品从业人员。
对食品从业人员进行常规筛查是预防医院内食源性感染的一项重要手段。
