title: Factors affecting the reproducibility of the serum neutralization test for infectious bursal disease.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D002478:Cells, Cultured; D002645:Chickens; D007243:Infectious bursal disease virus / Q000276:immunology*; D009500:Neutralization Tests / Q000592:standards; D012087:Reoviridae / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral