THE VACCINE CONTAINS THE LASOTA STRAIN OF NEWCASTLE DISEASE;VIRUS IN LIVE, FREEZE-DRIED FORM. THE EMBRYONATED CHICKEN EGGS;USED IN THE PRODUCTION OF THE VACCINE ARE OBTAINED FROM SPECIFIC-;PATHOGEN-FREE (SPF) FLOCKS.;ONE DOSE CONTAINS:;NEWCASTLE DISEASE VIRUS STRAIN LASOTA....AT LEAST 10^5.5 EID50