Canine Parvovirus (CPV) is a highly contagious viral infection that affects dogs. It primarily attacks the gastrointestinal tract, leading to symptoms such as severe diarrhea, vomiting, loss of appetite, and dehydration. CPV can be life-threatening, especially in young puppies or dogs with weak immune systems. A canine parvo test, such as the parvovirus antigen test, is essential for early diagnosis and treatment.