CULTURE PRODUCT OF INFECTIOUS BRONCHITIS VIRUS AND VACCINE OBTAINED THEREFROM

摘要

PROBLEM TO BE SOLVED: To obtain a vaccine containing infectious bronchitis viruses, effective for acute respiratory diseases characterized by tracheal rale, cough, sneeze and snot, and useful for immunizing fowls by preparing the infectious bronchitis viruses belonging to a specific strain into the vaccine. SOLUTION: This vaccine for immunizing fowls against virus-infected diseases is obtained by preparing the infectious bronchitis viruses belonging to the strain, accession No. VR 2199, deposited to ATCC in Rockville city, Maryland state, USA or to a strain originated therefrom.