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Title: Antigenic diversity of infectious bursal disease viruses. Author: Jackwood DH, Saif YM. Journal: Avian Dis; 1987; 31(4):766-70. PubMed ID: 2831868. Abstract: Statistically significant antigenic differences were detected among serotype I infectious bursal disease viruses (IBDV) using the virus-neutralization test. Eight serotype I commercial vaccine strains, five serotype I field strains, and two serotype II field strains were tested. Hyperimmune guinea pig antisera against heterologous and homologous IBDV strains were used in cross-neutralization tests. Relatedness values were calculated from geometric mean antibody titers based on a minimum of three tests. Six subtypes were distinguished among the 13 serotype I strains tested.[Abstract] [Full Text] [Related] [New Search]