Canine parvovirus infection, also known as parvovirosis, is a highly contagious viral disease that affects a dog’s digestive system, causing severe diarrhoea, vomiting and dehydration.
In some cases, particularly in very young puppies, the infection can also affect the heart muscle and lead to potentially fatal complications. The virus is shed in the faeces of infected dogs and can survive in the environment for months.
What Causes Parvovirus in Dogs?
The disease is caused by canine parvovirus type 2 (CPV-2), a highly contagious virus. It spreads through direct contact with an infected dog or indirect contact with contaminated faeces, surfaces, objects or environments.
Puppies and unvaccinated dogs are particularly vulnerable to infection. Because the virus can survive in the environment for months, exposure to contaminated areas can pose a significant risk, even when an infected dog is no longer present.
Contact with contaminated environments is especially dangerous for dogs that have not completed their vaccination course.
The Life Cycle of Canine Parvovirus
What Are the Symptoms of Parvovirus in Dogs?
The symptoms of canine parvovirus infection can range from mild to severe. Their severity may depend on the dog’s age, breed, immune status, any underlying health conditions and overall health.
The most common symptoms of parvovirus include:
- Severe diarrhoea, which may contain blood
- Vomiting
- Loss of appetite
- Lethargy
- Dehydration
- Fever
These symptoms are not specific to parvovirus and may also occur with other medical conditions. Nevertheless, they should always be taken seriously. If your dog develops any of these signs, contact a veterinarian as soon as possible to determine the cause.
Particularly vulnerable groups include unvaccinated puppies and dogs with compromised immune systems, which may require prompt veterinary intervention.
Diagnosing Parvovirus in Dogs
Canine parvovirus infection must be diagnosed by a veterinarian, based on a physical examination, clinical signs and appropriate diagnostic tests.
Veterinary examination: During the initial examination, the veterinarian will look for signs that may indicate parvovirus infection, including dehydration, lethargy, fever, vomiting and diarrhoea. They may also measure the dog’s temperature, listen to the heart and lungs, and palpate the abdomen.
Clinical signs: Symptoms such as loss of appetite, diarrhoea and vomiting are important factors in assessing the likelihood of parvovirus infection.
Faecal antigen test: One of the most commonly used diagnostic methods is a faecal antigen test, which detects canine parvovirus antigens in a stool sample. These tests can identify infection in many cases, although results may vary depending on the timing of testing and the stage of infection.
Blood tests: Blood tests, including a complete blood count (CBC), can help assess the dog’s overall condition and identify changes associated with infection, such as a reduced white blood cell count. Antibody tests may be used in certain circumstances, but they do not replace faecal antigen testing or other appropriate diagnostic methods for confirming an active infection.
Additional tests: Depending on the dog’s condition, further investigations may be required. These can include blood biochemistry and abdominal ultrasound to assess complications or investigate other possible causes of the symptoms.
If your dog is diagnosed with parvovirus, it is essential to follow your veterinarian’s treatment and care recommendations. Early diagnosis and prompt treatment can improve the chances of recovery.
Treatment of Parvovirus in Dogs
Dogs with parvovirus often require intensive medical care and continuous veterinary monitoring. Hospitalisation is frequently necessary, particularly in moderate to severe cases.
Treatment typically involves intravenous fluids and electrolyte replacement to address dehydration, medication to control vomiting and supportive nutritional care. Antibiotics may be prescribed when indicated to manage or prevent complications associated with secondary bacterial infections. In severe cases, a blood or plasma transfusion may be required.
The inpatient facilities at Vet Planet Clinic are equipped to provide round-the-clock monitoring and care for pets that require hospitalisation.
Prevention of Parvovirus in Dogs
Prevention is the best way to protect your dog against parvovirus.
Vaccination is highly effective in reducing the risk of infection and severe disease. Puppies generally begin their vaccination course at around six to eight weeks of age, followed by additional doses according to the veterinarian’s recommended schedule. Adult dogs should receive booster vaccinations at the appropriate intervals to maintain protection.
Other preventive measures include avoiding contact with infected dogs, cleaning and disinfecting potentially contaminated surfaces using products effective against parvovirus, and maintaining good hygiene.
You can arrange your puppy’s initial vaccinations and your adult dog’s booster vaccinations at your nearest Vet Planet location. Contact us to schedule an appointment and give your pet the protection they need.
The Vet Planet Clinic Team