Effective protection against Canine Cough the Canine Spectra KC3 vaccine is a combination of immunogenic, attenuated strain of canine adenovirus type 2 (CAV2) and canine parainfluenza (CPIV) propagated in cell line tissue cultures with an avirulent live culture of Bordetella bronchiseptica. Always check with your veterinarian about correct / proper vaccination protocol. | Durvet Canine Spectra KC 3 Way Protection Vaccine | Size One Dose