[RESEARCH ON AN ATTENUATED VIRUS OF INFECTIOUS BRONCHITIS IN CHICKENS. V. PROPAGATION OF THE VIRUS IN VACCINATED AND NORMAL ANIMALS].
D000486:Allergy and Immunology; D000818:Animals; D001991:Bronchitis; D002645:Chickens; D003141:Communicable Diseases; D011200:Poultry; D011201:Poultry Diseases; D014777:Virus Diseases
IMMUNOLOGY; POULTRY; POULTRY DISEASES; VIRUS DISEASES
RICERCHE SU UN VIRUS ATTENUATO DELLA BRONCHITE INFETTIVA DEI POLLI. V. PROPAGAZIONE DEL VIRUS DAGLI ANIMALI VACCINATI A QUELLI SANI.