Mildvac-Ma5 (Infectious Bronchitis Vaccine) – IB Respiratory Protection for Chickens

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Mildvac-Ma5 is a live virus vaccine prepared from the cloned Ma5 strain of Massachusetts type infectious bronchitis virus, used to protect chickens against this common respiratory disease. Merck Animal Health selected the Ma5 strain for its low reactivity paired with strong immunogenicity.Key Uses Vaccination of healthy chickens against infectious bronchitis virus, Massachusetts type Effective from 1 day of age or from 2 weeks of age or older Propagated using specific pathogen free (SPF) substrates for consistency Selected for a mild reaction profile with reliable immune response Administration NotesDuration of immunity has not been established, so follow your veterinarian's revaccination schedule for ongoing protection. See productdata.aphis.usda.gov for additional efficacy and safety data. Show more