Infectious bursal disease
| Year | Event | Reference |
| 1957 |
Infectious bursal disease first recognized as a specific disease entity |
Cosgrove (1962) Avian Dis 6:385-389 |
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1962 |
First isolation of IBDV from clinically affected chickens |
Winterfield & Hitchner (1962) Am J Vet Res 23:1273-1279 |
| 1972 |
Demonstration that IBDV causes immunosuppression in chickens |
Alan et al. (1972) Vet Rec 90:511-512 |
| 1980 |
Isolation of a second serotype of IBDV |
McFerran, et al. (1980) Avian Pathol 9:395-404 |
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| 1984 |
First appearance of variant strains of IBDV |
Saif (1984) Proc 19th Natl Meet Poult Health Cond 105-107 |
| 1987 |
Demonstration that VP2 carries the epitopes for inducing virus neutralization antibodies |
Azad et al. (1987) Virology 161:145-152 |
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| 1989 |
Appearance of very virulent (vv) strains of IBDV in Europe |
Chettle et al. (1989) Vet Rec 125:271-272 |
| 1991 |
First recombinant virus vector expressing VP2 of IBDV (fowlpox virus recombinant) |
Bayliss et al. (1991) Arch Virol 120:193-205 |
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