Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 6 4 2011 12 15 76 83 EN F Kheirandish Department of Parasitology and Mycology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran MJ Tarahi Department of Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran A Haghighi Department of Parasitology and Mycology, School of Medicine, Shahid Beheshti University, M.C., Tehran, Iran E Nazemalhosseini- Mojarad Department of Foodborne & Diarrhea Disease, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University, M.C., Tehran, Iran M Kheirandish Department of Pharmacoeconomics & Pharmaceutical Management, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran 2015 10 03 Background: 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. Methods: 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). Results: 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%. Conclusion: 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. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/207 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/207/206