| seroprevalence and risk factors of fascioliasis in yaks, bos grunniens, from three counties of gansu province, china. | the aim of this study was to determine the seroprevalence and risk factors of fascioliasis in yaks, bos grunniens, from 3 counties of gansu province in china. a total of 1,584 serum samples, including 974 samples from white yaks from tianzhu, 464 from black yaks from maqu, and 146 from black yaks from luqu county, were collected and analyzed using elisa to detect igg antibodies against fasciola hepatica. the overall f. hepatica seroprevalence was 28.7% (454/1,584), with 29.2% in white yaks (284/ ... | 2017 | 28285513 |