[Laboratory diagnosis of infectious bursal disease (IBD) in northern Nigeria (1975-1979)].
D000818:Animals; D002645:Chickens; D007243:Infectious bursal disease virus / Q000302:isolation & purification; D011200:Poultry; D011201:Poultry Diseases / Q000175:diagnosis*; D012088:Reoviridae Infections / Q000175:diagnosis / Q000662:veterinary*