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Iranian Journal of Parasitology، جلد ۱۲، شماره ۴، صفحات ۵۱۶-۵۲۱
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عنوان انگلیسی Occurrence of Acanthamoeba Genotypes in Wastewater Samples in Tehran, Iran
چکیده انگلیسی مقاله Abstract Background: Acanthamoeba spp. is potentially pathogenic free-living amoeba that can exist in various water sources. The presence of this amoeba in water sources could be a health hazard as Acanthamoeba could lead to severe diseases such as Acanthamoeba keratitis and encephalitis. This study aimed to determine the genotypes of isolated Acanthamoeba spp. in raw wastewater samples in Tehran, Iran . Methods: Overall, 90 raw wastewater samples were collected from water treatment facilities in west and south of Tehran, Iran during 2014-2016. Water samples were filtered and cultured on non-nutrient agar (NNA) medium enriched with Escherichia coli . Morphological and molecular analyses were done on positive strains. The pathogenic ability of the isolated strains was determined using physical assays. Results: Totally, 6 out of 90 (6.7%) samples were positive for Acanthamoeba , according to morphological characteristics of double-walled cysts. Genotyping and sequencing of the positive strains showed Acanthamoeba belonging to T4 (83%) and T11 (17%) genotypes. In vitro pathogenicity tests were revealed that five isolates were classified as non-pathogenic strains and one strain belonging to T4 genotype was classified as the highly pathogenic amoebae. Conclusion: The current research reflected a low contamination of wastewater sources to Acanthamoeba . More studies regarding the contamination of wastewaters before and after treatment are required in different places of the country.
کلیدواژه‌های انگلیسی مقاله Acanthamoeba, Genotype, Wastewater, Iran
نویسندگان مقاله مسعود بهنیا | massoud behnia
infection disease and tropical medicine research center, zahedan university of medical sciences, zahedan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی زاهدان (Zahedan university of medical sciences)

کریم حاتم نهاوندی | karim hatam nahavandi
dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran dept. of medical parasitology and mycology, school of medicine, qazvin university of medical sciences, qazvin, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

الهام حاجعلیلو | elham hajialilo
dept. of medical parasitology and mycology, school of medicine, shahid beheshti university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

مریم نیتی | maryam niyyati
dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

فاطمه طریقی | fatemeh tarighi
dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

اعظم بختیار اکرم | azam bakhtiar akram
dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

محبوبه سلیمی | mahboobeh salimi
dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran center for research of endemic parasites of iran crepi , tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

مصطفی رضاییان | mostafa rezaeian


نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/1925
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