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Application of monoclonal antibodies in the Dutch avian leukosis control programme
G F De Boer1, A D Osterhaus, B Kouwenhoven
1Virology Department, Central Veterinary Institute, Lelystad, The Netherlands.
Abstract:
Comparative testing with series of albumen samples obtained from seven Dutch poultry flocks was performed for avian leukosis virus group-specific antigen (ALV-gsa) by complement fixation test (CFT) and by a double antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) employing selected monoclonal antibodies directed to different ALV-p27 epitopes. The higher sensitivity for ALV-gsa detection of the DAS-ELISA resulted in increased scores of ALV-shedding hens in all seven flocks. Relatively low absorbance values seem to be associated with low rates of congenital ALV transmission.
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