The parvovirus vaccine helps protect dogs against a highly contagious illness that can cause severe vomiting, diarrhoea, and life-threatening dehydration. For puppies and dogs without adequate vaccination, parvovirus can become a medical emergency.
At Animal Hospital of Aurora, we help pet owners plan preventive care based on their dog’s age, health, and vaccination history.
What Is Canine Parvovirus?
Canine parvovirus, often called “parvo,” attacks the digestive tract and can also affect the body’s infection-fighting cells. Puppies and unvaccinated dogs are particularly vulnerable.
Dogs can become infected through contact with infected faeces or contaminated surroundings and objects. The virus can survive in the environment for long periods, making prevention especially important.
Symptoms of Parvovirus in Dogs
Recognising symptoms early can help your dog receive prompt veterinary attention. Watch for:
- Repeated vomiting
- Severe diarrhoea, which may contain blood
- Loss of appetite
- Unusual tiredness or weakness
- Fever
- Dehydration
Persistent vomiting and diarrhoea can lead to rapid fluid loss. Seek urgent veterinary care if your puppy develops these symptoms. Call before arriving and keep your dog away from other dogs so the veterinary team can prepare appropriate precautions. Do not wait for bloody diarrhoea to appear before seeking help.
Why Is the Parvovirus Vaccine Important?
Parvovirus vaccination is considered a core vaccine, meaning it is recommended for dogs regardless of their usual lifestyle unless there is a specific medical reason not to vaccinate.
It is commonly included in a combination vaccine that also protects against distemper and adenovirus. You can learn more about another important component in our article on dog distemper vaccination.
When Should Puppies Receive the Parvovirus Vaccine?
Puppies need a series of vaccinations to build reliable protection. A typical schedule includes:
- Starting at approximately 6–8 weeks: The first vaccination.
- Every 2–4 weeks afterwards: Additional doses until at least 16 weeks of age.
- For higher-risk puppies: Your veterinarian may continue the series until 18–20 weeks.
Antibodies received from the mother can interfere with early vaccinations, which is why completing the series matters. Your veterinarian will also recommend follow-up boosters and a suitable schedule for adult dogs with incomplete or unknown vaccination histories.
For further information, read the American Veterinary Medical Association’s guide to canine parvovirus.
Protecting Your Puppy Before Vaccinations Are Complete
While your puppy is building protection, avoid contact with dogs that are unwell or have an unknown vaccination history. Ask your veterinarian about safer socialisation opportunities and when your puppy can visit shared dog areas.
If parvovirus has affected your home, seek advice about effective cleaning before bringing another puppy into that environment.
Book a Parvovirus Vaccine Appointment in Aurora
Unsure whether your dog’s vaccinations are up to date? Bring any available vaccination records to your next visit so we can discuss the appropriate next steps.
Contact Animal Hospital of Aurora to arrange an appointment and discuss your dog’s preventive care.