The dangerous period of dog parvovirus usually presents with a series of clinical symptoms, such as gastrointestinal symptoms such as vomiting, severe diarrhea, anorexia, fever, and blood in the stool, or myocardial symptoms such as difficulty breathing, dry cough, silent heart failure, and sudden death. . If the dog shows these symptoms, it needs to be taken to the pet hospital for treatment in time.

During the treatment process, if the dog's white blood cell level begins to rise, this is usually a positive sign. It may mean that the dog has passed the dangerous period and has changed for the better. In addition, if the dog's mental state begins to recover, he no longer appears weak, and his appetite gradually returns, these are signs that the condition is improving.