Kheirandish F, Tarahi Mj, Haghighi A, Nazemalhosseini-Mojarad E, Kheirandish M
Department of Parasitology and Mycology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.
Iran J Parasitol. 2011 Dec;6(4):76-83.
Food contamination may occur through production, processing, distribution and preparation. In Iran especially in Khorramabad, 33° 29' 16" North, 48° 21' 21" East, due to kind of nutrition, culture and economic status of people, bread is a part of the main meal and the consumption of bread is high. In this study, the bakery workers were studied for determining of intestinal parasites prevalence.
The study was carried out during September to November 2010 in Khorramabad. All the 278 bakeries and the bakery workers including 816 people were studied in a census method and their feces were examined for the presence of parasites by direct wet-mount, Lugol's iodine solution, and formaldehyde-ether sedimentation, trichrome staining, and single round PCR (For discrimination of Entamoeba spp).
Ninety-six (11.9%) stool specimens were positive for different intestinal parasites. Intestinal parasites included Giardia lamblia 3.7%, Entamoeba coli 5.5%, Blastocystis sp. 2.1%, Entamoeba dispar 0.4%, Hymenolepis nana 0.1%, and Blastocystis sp. 0.1%.
In order to reduce the contamination in these persons, some cases such as stool exam every three months with concentration methods, supervision and application of accurate health rules by health experts, training in transmission of parasites are recommended.
食品污染可能发生在生产、加工、分销和制备过程中。在伊朗，特别是在霍拉马巴德（北纬33°29′16″，东经48°21′21″），由于人们的营养种类、文化和经济状况，面包是主食的一部分，且面包消费量很高。在本研究中，对面包店工人进行了研究，以确定肠道寄生虫的患病率。
该研究于2010年9月至11月在霍拉马巴德进行。采用普查方法对所有278家面包店及其816名面包店工人进行了研究，并通过直接湿片法、卢戈氏碘液法、甲醛-乙醚沉淀法、三色染色法和单轮PCR（用于鉴别内阿米巴属）对他们的粪便进行寄生虫检测。
96份（11.9%）粪便标本检测出不同的肠道寄生虫呈阳性。肠道寄生虫包括蓝氏贾第鞭毛虫3.7%、结肠内阿米巴5.5%、芽囊原虫2.1%、迪斯帕内阿米巴0.4%、微小膜壳绦虫0.1%和芽囊原虫0.1%。
为了减少这些人的污染，建议采取一些措施，如每三个月采用浓缩法进行粪便检查、卫生专家进行监督并应用准确的卫生规则、开展寄生虫传播方面的培训。
