[On the prophylactic vaccination against infectious bronchitis with live vaccine. 2. Immunogenic behavior of the virus towards various field strains].
D000818:Animals; D001991:Bronchitis / Q000517:prevention & control / Q000662:veterinary*; D002645:Chickens; D011201:Poultry Diseases / Q000517:prevention & control*; D014611:Vaccination; D014777:Virus Diseases / Q000517:prevention & control / Q000662:veterinary*
Zur Frage der Impfprophylaze gegen Infektiöse Bronchitis mit Lebendvaccine. 2. Immunogenes Verhalten des Impfvirus gegenüber verschiedenen Feldstämmen.