The symptoms of dogs suffering from parvovirus are generally divided into two types based on clinical research:

Enteritis type

The insidious period of the disease is 3-5 days, and it usually occurs just after the change. After the situation (such as newly purchased puppies), bathing, eating too much and other reasons. The disease generally presents enteritis syndrome, and a small number of myocarditis syndrome occurs.

In the early stages, dogs with enteritis are depressed, anorexic, occasionally have fever, soft stools or slight vomiting, and then develop into frequent vomiting and severe diarrhea. At first, the stool is gray, yellow or milky white, with jelly-like mucus, and later becomes rancid soy sauce-like or tomato juice-like bloody stool. Sick dogs are rapidly dehydrated, weak, have sunken eye sockets, messy coat, inelastic skin, cold ears, nose, hands and feet, high levels of depression, shock, and death. The symptoms from mild to severe at the beginning of the disease generally do not last more than 2 days, and the entire course of the disease generally does not last more than a week.

Myocarditis type

It is more common in puppies between 4 and 6 weeks old. It often has no symptomatic symptoms, or only mild diarrhea, followed by sudden weakness, sighing, cyanosis of the mucous membrane, and respiratory distress. Extremely difficult, with fast and weak pulse, murmur on heart auscultation, and often sudden death (perhaps due to acute respiratory depression) within a few hours. Postmortem examination shows that the heart is dilated and there are pale stripes on the myocardium, which are possible signs of congestive heart failure. .

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