Genotyping of Echinococcus granulosus Isolates from Human in Khorasan Province, North-Eastern Iran

Fariba BERENJI; Seyed Aliakbar SHAMSIAN; Marziyeh NOURI DALOEE; Seyed Hossein FATTAHI MASOOM; Elham MOGHADDAS

doi:10.18502/ijpa.v14i1.717

Fariba BERENJI
Seyed Aliakbar SHAMSIAN
Marziyeh NOURI DALOEE
Seyed Hossein FATTAHI MASOOM
Elham MOGHADDAS

DOI: https://doi.org/10.18502/ijpa.v14i1.717

Keywords: Hydatid; Human; Strain; Iran; Echinococcus granulosus

Abstract

Background: Human hydatidosis is endemic in northeastern Iran. The present study aimed to investigate molecular diversity of Echinococcus granulosus isolates collected from human surgically.

Methods: Sixty human hydatid cysts (58 lung cysts and 2 liver cysts) were collected through surgery from Ghaem and Emam Reza hospitals in Mashhad University of Medical Sciences during 2015-2016. Cysts were characterized using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of the internal transcribed spacer 1 (ITS1) gene and sequencing fragments of the genes coding for mitochondrial cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit I (nad1).

Results: Overall, 55 out of 60 Echinococcus granulosus cysts (91.6%) were determined as the G1 strain, 4 cases (6.6%) were determined as the G6 strain and 1 sample was not identified.

Conclusion: Although sheep strain (G1) is dominated in human patients in Great Khorasan, the prevention of camel-dog cycle should pay attention in this region.