What is parvovirus and its common symptoms in dogs?

Parvovirus is a highly contagious viral disease that primarily affects dogs, particularly puppies that have not been fully vaccinated. It is caused by the canine parvovirus (CPV) and is known for its severe impact on the gastrointestinal system. The most common symptoms associated with parvovirus infection include lethargy, severe vomiting, diarrhea (often bloody), and a loss of appetite. The disease can lead to dehydration and significant complications if not treated promptly.

One of the reasons option C is the best answer is that it accurately describes the nature of the disease and its predominant symptoms. Understanding this helps in recognizing the importance of vaccination and early detection in young dogs, as their immune systems are still developing, making them particularly vulnerable.

Other choices describe conditions that do not align with the characteristics of parvovirus. Respiratory symptoms are consistent with other viral infections, bacterial infections usually lead to skin issues, and neurological disorders are unrelated to parvovirus and typically involve different sets of symptoms. This distinction highlights the specific nature of parvovirus compared to other potential conditions affecting dogs.