6-way dog vaccines are recommended for the vaccination of healthy dogs against diseases caused by canine distemper, canine hepatitis, adenovirus cough (kennel cough), parainfluenza, parvovirus, and coronavirus. Revival Animal Health offers distemper, adenovirus, parainfluenza, and parvovirus in modified live versions of the virus and coronavirus in a killed version of the virus. They contain no leptospirosis.