Parvovirus is spread from dog to dog via contact with infected feces, or carriers like shoes, clothing and food and water bowls. Most often spread in kennels, the best (and only) way to prevent parvovirus in your dog is to adhere to a regular vaccination schedule provided by your veterinarian.
Once contracted, the parvovirus can be eradicated by using an appropriate solution of chlorine bleach or iodine to clean kennels and other areas where dogs congregate.
Parvovirus can survive many weeks on contaminated surfaces. For this reason, kennel owners should exercise great caution when placing puppies where a parvovirus infection has occurred. Only after a thorough disinfection of the premises should you introduce fully vaccinated pups. Even then, it’s important to remember that antibodies puppies acquire from their mother can interfere with the development of their own immunity to parvovirus. This effect can last up to 16 weeks, so puppies should receive their final puppy parvovirus vaccination at 16 weeks or older. Remember too that sick dogs should be segregated from their healthy peers.
Dogs who have been at shows, field trials, or in other situations of contact with other dogs, should be kept in isolation and observed for signs of parvovirus and other diseases before being returned to the kennel. Kennel visits should generally be discouraged.