BIO B1 - H120 VACCINE IS MADE WITH A LIVE ATTENUATED VIRUS OF;AVAIN INFECTIOUS BRONCHITIS ( H120 STRAIN ), LIVE ATTENUATED VIRUS;(STRAIN B1) REPLICATED IN SPF EGGS, FREEZE-DRIED AND UNDER VACUUM;SEALED.;MINIMUM TITER IS 10^6 EID50 FOR THE NEWCASTLE B1 STRAIN AND 10^3;EID50 FOR THE H120 STRAIN.