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Prevalence and Molecular Aspects of Human Hookworms in Guilan Province, Northern Iran.


ABSTRACT: BACKGROUND:Hookworm infection is one of the important Neglected Tropical Diseases (NTD) in the world. It was previously more prevalent in the northern and southern parts of Iran with a prevalence rate higher than 40% in some endemic regions; nevertheless, the infection rate has decreased to less than 1%. This study aimed to determine prevalence and molecular aspects of hookworm infections in rural inhabitants of Fouman County, Guilan Province, northern Iran. METHODS:This cross-sectional study was performed in 31 villages of Fouman district in Guilan Province, northern Iran during 2015-2016. Stool samples were collected from 1500 rural inhabitants and examined by formalin ethyl-acetate concentration as well as agar plate culture techniques. After treatment with albendazole, adult hookworms were isolated. Following DNA extraction, PCR amplification of ITS2-rDNA region was performed and the product was sequenced, followed by genetic variation analysis. RESULTS:Of 1500 samples, one case was morphologically diagnosed as N. americanus. In addition, molecular characterization verified the presence of N. americanus, showing more than 95% similarity with sequences of N. americanus present in GenBank. The patient showed no clinical symptoms and a mild hypereosinophilia was the only laboratory finding observed. CONCLUSION:A reduced prevalence of human hookworms was demonstrated within Guilan Province located in north of Iran. The N. americanus originated from Guilan had a high homology with the isolates found in Japan, Laos, Malaysia, and Australia.

SUBMITTER: Sharifdini M 

PROVIDER: S-EPMC5623917 | biostudies-literature | 2017 Jul-Sep

REPOSITORIES: biostudies-literature

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Prevalence and Molecular Aspects of Human Hookworms in Guilan Province, Northern Iran.

Sharifdini Meysam M   Ghanbarzadeh Laleh L   Kouhestani-Maklavani Nasrolla N   Mirjalali Hamed H   Saraei Mehrzad M  

Iranian journal of parasitology 20170701 3


<h4>Background</h4>Hookworm infection is one of the important Neglected Tropical Diseases (NTD) in the world. It was previously more prevalent in the northern and southern parts of Iran with a prevalence rate higher than 40% in some endemic regions; nevertheless, the infection rate has decreased to less than 1%. This study aimed to determine prevalence and molecular aspects of hookworm infections in rural inhabitants of Fouman County, Guilan Province, northern Iran.<h4>Methods</h4>This cross-sec  ...[more]

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