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Background: Hydatidosis is a neglected global zoonotic disease, caused by larval stage of the cestode Echinococcus granulosus in human and animal. Because of high economic and medical importance of the disease, this study was performed to find the seroprevalence of human hydatidosis in Gorgan City, Golestan Province, northern Iran. Methods: In this cross-sectional study, blood samples were collected from people referring to Reference laboratory of Golestan University of Medical sciences in 2017. A relevant questionnaire was completed for demographic data for each person. Echinococcus IgG antibody was investigated by ELISA using native antigen B. The data were analyzed using SPSS software applying logistic regression. Results: Overall, 612 blood samples were collected. Cut-off was considered 0.29. Sixteen cases (2.6%) were seropositive for hydatidosis. The seroprevalence of hydatidosis was 2.3% and 4.7% among males and females, respectively. There was no statistically significant correlation between the hydatidosis and investigated variables such as sex, age, tribes, residence, education, etc. Conclusion: The prevalence of human hydatidosis shows approximately the same range as other regions of Iran. Although due to the neighboring the Mazandaran Province reported as the highest seroprevalence of hydatidosis, we expected more rate of seropositivity. [ABSTRACT FROM AUTHOR]