| abstract |
A putative protective antigen or fragment thereof against infections selected from the group consisting of Ostertagia circumcincta, Trichostrongylus colubriformis and Fasciola hepatica or related infections, being antigens selected from antigens having approximate molecular weights in the region of 26-36 and 91-105 kilodaltons, an antigen having an approximate molecular weight of 32-35 kilodaltons, and antigens having approximate molecular weights in the region of 28 kilodaltons, 32 kilodaltons, 37 kilodaltons, 42 to 100 kilodaltons, 54 to 55 kilodaltons and > 200 kilodaltons, respectively. |