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  • Title: Monoclonal antibody sandwich immunoassay detection of coproantigen to evaluate the efficacy of treatment in natural ovine fasciolosis.
    Author: Duménigo BE, Mezo M.
    Journal: Res Vet Sci; 1999 Apr; 66(2):165-7. PubMed ID: 10208896.
    Abstract:
    The monoclonal antibody-based sandwich immunoassay (mAb Sandwich ELISA) was used to evaluate the effectiveness of triclabendazole treatment by the detection of coproantigens in Fasciola hepatica naturally infected sheep. Twelve sheep (2 to 5 years of age) were separated into two groups. The first group (three sheep) remained untreated; the other group (nine sheep) was treated with a single dose of 5% triclabendazole at 10 mg kg-1 of body weight. All but one of the treated group had negative optical density values (OD492) after two weeks of treatment, while seven sheep intermittently shed eggs during the course of the study. In all but one of the treated sheep, no F. hepatica infection; the one positive ELISA in 5th week after treatment according to the mAb Sandwich, had one fluke in the liver. The results of the parasitological examinations, as well as OD492 values obtained by the mAb Sandwich ELISA for the detection of coproantigens are described. The findings at necropsy, of the treated group in comparison to the untreated group are shown. The mAb Sandwich ELISA could be a useful and accurate method with which to monitor the efficacy of flukicides in F. hepatica natural infections.
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