A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran

Abstract Introduction Intestinal parasitic infections (IPIs), caused by helminths and protozoans, are among the most prevalent infections in humans in developing countries. This study aimed to determine the prevalence of IPIs in patients referred to three educational and medical centers affiliated w...

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Main Authors: Shiva Zeinali, Mahsa Rezgi, Morteza Gholinejad, Rasool Jafari
Format: Article
Language:English
Published: BMC 2023-09-01
Series:BMC Gastroenterology
Subjects:
Online Access:https://doi.org/10.1186/s12876-023-02947-5
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author Shiva Zeinali
Mahsa Rezgi
Morteza Gholinejad
Rasool Jafari
author_facet Shiva Zeinali
Mahsa Rezgi
Morteza Gholinejad
Rasool Jafari
author_sort Shiva Zeinali
collection DOAJ
description Abstract Introduction Intestinal parasitic infections (IPIs), caused by helminths and protozoans, are among the most prevalent infections in humans in developing countries. This study aimed to determine the prevalence of IPIs in patients referred to three educational and medical centers affiliated with Urmia University of Medical Sciences in Urmia. Materials and methods In this cross-sectional study, 2845 stool samples, including 2174 (76.4%) males and 671 (23.6%) females, were collected from patients referred to Imam Khomeini and Shahid Motahhari hospitals and Shahid Nikkhah Health Center in Urmia, Northwest Iran, from January 2020 to February 2022. The microscopic examination for IPIs was carried out using the wet mount method, and the hard-to-identify samples were stained by trichrome for accurate identification of protozoa. For diagnosis of infections by coccidian parasites modified Ziehl-Neelsen (mZN) staining was used. Results Based on the results, two hundred nine intestinal parasites were identified in 184 out of 2845 (6.5%) patients of which 136 out of 2174 males (6.3%) and 48 out of 671 females (7.2%) were positive. Some patients had tested positive for multiple protozoa. The observed intestinal protozoa are as follows: Blastocystis spp. 118 (4.1%), Endolimax Nana 42 (1.5%), Entamoeba coli 24 (0.8%), Giardia lamblia 13 (0.5%), Cryptosporidium spp. 6 (0.2%), Iodamoeba butschlii 3 (0.1%), Chilomastix mesnili 2 (0.1%), and an accidentally detected helminthic infection Enterobius vermicularis 1 (0.05%). Conclusion According to the results, the most prevalent IPIs in West Azerbaijan Province are caused by Blastocystis spp., and Giardia lamblia. Most intestinal protozoa observed in the study were nonpathogenic and commensal, which shows water or food contamination in the area. Thus, medical technologists in the parasitology section must be trained and aware of IPIs in medical laboratories.
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spelling doaj.art-e9c7c2dc05374b368acc23d13e82df9a2023-11-20T09:36:17ZengBMCBMC Gastroenterology1471-230X2023-09-0123111010.1186/s12876-023-02947-5A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest IranShiva Zeinali0Mahsa Rezgi1Morteza Gholinejad2Rasool Jafari3Student Research Committee, Urmia University of Medical SciencesDepartment of Parasitology and Mycology, School of Medicine, Urmia University of Medical SciencesDepartment of Parasitology and Mycology, School of Medicine, Urmia University of Medical SciencesDepartment of Parasitology and Mycology, School of Medicine, Urmia University of Medical SciencesAbstract Introduction Intestinal parasitic infections (IPIs), caused by helminths and protozoans, are among the most prevalent infections in humans in developing countries. This study aimed to determine the prevalence of IPIs in patients referred to three educational and medical centers affiliated with Urmia University of Medical Sciences in Urmia. Materials and methods In this cross-sectional study, 2845 stool samples, including 2174 (76.4%) males and 671 (23.6%) females, were collected from patients referred to Imam Khomeini and Shahid Motahhari hospitals and Shahid Nikkhah Health Center in Urmia, Northwest Iran, from January 2020 to February 2022. The microscopic examination for IPIs was carried out using the wet mount method, and the hard-to-identify samples were stained by trichrome for accurate identification of protozoa. For diagnosis of infections by coccidian parasites modified Ziehl-Neelsen (mZN) staining was used. Results Based on the results, two hundred nine intestinal parasites were identified in 184 out of 2845 (6.5%) patients of which 136 out of 2174 males (6.3%) and 48 out of 671 females (7.2%) were positive. Some patients had tested positive for multiple protozoa. The observed intestinal protozoa are as follows: Blastocystis spp. 118 (4.1%), Endolimax Nana 42 (1.5%), Entamoeba coli 24 (0.8%), Giardia lamblia 13 (0.5%), Cryptosporidium spp. 6 (0.2%), Iodamoeba butschlii 3 (0.1%), Chilomastix mesnili 2 (0.1%), and an accidentally detected helminthic infection Enterobius vermicularis 1 (0.05%). Conclusion According to the results, the most prevalent IPIs in West Azerbaijan Province are caused by Blastocystis spp., and Giardia lamblia. Most intestinal protozoa observed in the study were nonpathogenic and commensal, which shows water or food contamination in the area. Thus, medical technologists in the parasitology section must be trained and aware of IPIs in medical laboratories.https://doi.org/10.1186/s12876-023-02947-5Intestinal parasitesUrmiaIran
spellingShingle Shiva Zeinali
Mahsa Rezgi
Morteza Gholinejad
Rasool Jafari
A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran
BMC Gastroenterology
Intestinal parasites
Urmia
Iran
title A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran
title_full A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran
title_fullStr A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran
title_full_unstemmed A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran
title_short A large-scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in Urmia, Northwest Iran
title_sort large scale study on the prevalence of intestinal parasites in patients referred to medical laboratories in urmia northwest iran
topic Intestinal parasites
Urmia
Iran
url https://doi.org/10.1186/s12876-023-02947-5
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