incubation period for canine parvo
4) The parvo incubation period is 3 - 7 days, sometimes longer. This is important because during the incubation period, your dog may act and appear normal. Vet visits and pre-purchase exams may reveal no signs of pending illness only to have parvo appear in a few days.ome people may be surprised to know that parvo is still around. Unfortunately, puppies and unvaccinated dogs still die from this disease. Canine Parvovirus is thought to be a mutation from the feline Parvovirus, also known as Feline Distemper virus.