Background & Objectives: the aim of this study is seroepidemiological survey of human Hydatidosis by ELISA method in East-Azarbaijan province. Methods: Totally 1500 serum samples were collected from patients referred to different health centers in 8 cities of East-Azarbaijan province. All the sera were examined using ELISA test. https://www.hindigyanvishv.com/hot-find-Facia-Installation-Kit-Suits-Holden-Commodore-VE-Series-2-FP9550BK-Black-top-mega/