| prevalence of natural ovine fasciolosis shown by demonstrating the presence of serum circulating antigens. | the prevalence of fasciolosis in sheep (galicia, northwest spain) kept under field conditions was determined by using a sandwich-enzyme-linked immunosorbent assay (selisa). serum fasciola hepatica circulating antigens were captured by means of a rabbit polyclonal igg antibody to f. hepatica excretory/secretory products. results were compared to those obtained by faecal sedimentation and an indirect elisa (ielisa) and excretory/secretory antigens. prevalences were 39.1% by selisa, 30.4% by faecal ... | 2003 | 14574565 |