| Year |
Event |
Reference |
| 1957 |
Infectious bursal disease first recognized as a specific disease entity
|
Cosgrove (1962) Avian Dis 6:385-389 |
|

|
|
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
|
 |
| 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
|
 |
| 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
|
 |