Bronchi-Shield III - Bordetella + Adenovirus + Parainfluenza Modified live + avirulent live Bordetella bronchiseptica. Bronchi-Shield III is for protection against canine adenovirus type 2, parainfluenza and bordetella bronchiseptica. Bronchi-Shield III is for dogs 8 weeks of age or older. Give intranasally. Instill 0.5 ml into each nostril. Annual revaccination is recommended. A very small percentage of animals may show sneezing, coughing, or nasal discharge following vaccination. These signs are usually transient. Requires mixing. Applicator tips are enclosed. Order syringes separately.