Active immunization of dogs against Bordetella bronchiseptica & canine parainfluenza virus, resulting in prevention of kennel cough. Dogs should be at least 2 wks of age. Unvaccinated dogs should receive one dose at least 3 weeks prior to the period of anticipated risk, e.g. temporarily kenneling, in order to get protection for both vaccine agents. One dose in unvaccinated dogs will give protection for B. bronchiseptica if given at least 72 hrs prior to period of anticipated risk.