There are many causes of parvovirus in dogs, the most common of which is external infection, that is, dogs are infected with canine parvovirus through direct or indirect contact with dogs with parvovirus. But in some cases, dogs with low immunity caused by catching a cold or improper diet for a long time may also directly induce parvovirus. The main mechanism of action of parvovirus is to destroy the villi of the small intestine and then cause secondary infection. In severe cases, it may even cause sepsis. Its main symptoms include high fever, vomiting, diarrhea, and even tomato-like stool. The stool has a serious fishy smell.

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First of all, dog parvovirus is a viral enteritis caused by parvovirus infection. It mainly infects animals that have not been successfully immunized or are not immune.