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Puppies and the Parvovirus

Puppies and the Parvovirus: The Dangers Every Dog Owner Should Know

Bringing a new puppy into your home is exciting, but it’s crucial to protect them from parvovirus, a highly contagious and potentially deadly disease. Puppies are especially vulnerable until they’ve completed their full vaccination series, usually by 16 weeks of age. If you already have older dogs at home, it’s vital to ensure they’re fully vaccinated before introducing the new puppy. This reduces the risk of transmission, since adult dogs can unknowingly carry and shed the virus even if they don’t appear sick.

To keep your puppy safe, take some simple but important precautions. Start by limiting shared spaces, avoid letting the puppy play in areas where the older dogs relieve themselves, at least until the puppy’s vaccinations are complete. Disinfect common areas like floors, crates, toys, and feeding bowls using a bleach solution (1 part bleach to 30 parts water) or a veterinary-approved disinfectant.

Important: keep your puppy away from dog parks, pet stores, or anywhere they could encounter unvaccinated dogs during these early weeks.


After a puppy is exposed to parvovirus, the incubation period is typically 3 to 7 days. This means symptoms usually appear within a week of exposure, but can sometimes show up as early as 48 hours or as late as 10 days.

Parvovirus Symptoms

Even with precautions, it’s essential to know the warning signs of parvovirus. Watch closely for symptoms like

  • severe diarrhoea (often bloody),
  • vomiting,
  • loss of appetite,
  • lethargy,
  • or a sudden drop in energy.

If you notice any of these signs, seek veterinary care immediately. As with most illnesses, early treatment can make a significant difference in recovery chances.

By keeping your older dogs vaccinated, maintaining good hygiene, and staying alert for symptoms, you can give your puppy the safest possible start. Always consult your vet if you have concerns about your puppy’s health or vaccination schedule.

Updated on May 5, 2025
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