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Korean J Parasitol. 2009 Sep;47(3):265-268.
Published online 2009 August 28.  doi: 10.3347/kjp.2009.47.3.265.
Copyright © 2009 by The Korean Society for Parasitology
Intestinal Parasitic Infections among Inhabitants of Karaj City, Tehran Province, Iran in 2006-2008
Vahid Nasiri,1 Kasra Esmailnia,1 Gholamreza Karim,2 Mehdi Nasir,3 and Omid Akhavan4
1Protozoology Department of Razi Vaccine and Serum Research Institute, Ghazvine Ave, Hesarak, Karaj, Tehran, Iran.
2Parasitology Department of Razi Vaccine and Serum Research Institute, Ghazvine Ave, Hesarak, Karaj, Tehran, Iran.
3Ministry of Education, Part 2 Office of Education, Yadegar Imam High School, Karaj, Iran.
4Society Securing Medical Centers, Karaj, Iran.

Corresponding author (Email: toxocara_vahidd@yahoo.com ; Email: v.nasiri@rvsri.ir )
Received January 22, 2009; Revised February 21, 2009; Accepted March 03, 2009.

Abstract

Karaj is an area with large influx of refugee people in Iran. To increase knowledge about parasitic infections, we carried out this research during 2006-2008. We recorded the stool examination results and some of their personal characteristics. A total of 13,915 human stools were examined, and 649 (4.7%) were positive for intestinal parasites. Among them, 13 (0.09%) had worm and 636 (4.6%) had protozoan infections. Maximum infections belonged to Giardia intestinalis, and 534 (3.8%) samples had this infection. Other parasitic infections included Entamoeba coli (0.39%), Entamoeba histolytica (0.021%), Blastocystis hominis (0.08%), Trichomonas hominis (0.1%), Iodamoeba butschlii (0.06%), Chilomastix mesnili (0.007%), Endolimax nana (0.05%), Enterobius spp. eggs (0.028%), Taenia proglottids (0.028%), and Strongyloides stercoralis larvae (0.03%). The maximum numbers of referred people to laboratories were in July and the maximum percentage of infections was in August. There is a point that all 5 Strongyloides stercoralis infections were pertained to 2008. With attention to the rate of parasitic infections (4.7%), it seems that we should take additional educational information to wide spectrum of people living in this city.

Keywords: Giardia, Entamoeba, Blastocystis, Trichomonas, Iodamoeba, intestinal parasite, Karaj, Iran.
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