If parvo symptoms in puppies are observed, the puppies need to see a vet immediately for treatment. (dog-health-guide.org)
The severity of parvo symptoms is related to the extent of the exposure. (dog-health-guide.org)
Enteritis (inflammation of the small intestine) is the main sign associated with other parvo symptoms such as anorexia (loss of appetite), vomiting, diarrhea, fever and lethargy. (dog-health-handbook.com)