Can Older Dogs Get Parvo?

Parvo, also known as parvovirus, is a highly contagious viral illness that mainly affects young dogs and puppies. It can cause severe sickness and, in some cases, even lead to death. However, many people mistakenly believe that older dogs are immune to parvo, but the fact is there are chances that older dogs get parvo. As responsible pet owners, we always strive to ensure the safety and well-being of our furry companions.

In this article, we will discuss whether older dogs can contract parvo, the potential risks, ways to prevent it, and available treatment options.

What is Parvovirus?

Parvo is a sickness that affects dogs, especially little ones. It’s a bad virus that attacks doggy cells and makes them sick. It can mess up their tummies real bad and even hurt their hearts. That’s super dangerous and can make them really sick or even die. The main problem is in their tummies. It makes them throw up a lot, have a runny tummy, and get very thirsty. The virus attacks their tummies, their bones, and their hearts, which is really bad and can cause a lot of damage to their insides.

Parvo in Puppies vs. Older Dogs

It is true that puppies are at a higher risk of contracting parvovirus due to their immature immune systems and lack of vaccination. They are also more prone to coming into contact with the virus in environments where other infected dogs have been. However, it is essential to understand that parvovirus can affect dogs of all ages, including older dogs.

older dogs get parvo

Can Older Dogs Get Parvo?

While older dogs generally have a more robust immune system than puppies, certain factors can increase their susceptibility to parvovirus. These factors may include:

  1. Unvaccinated or under-vaccinated dogs: If an older dog has not received proper vaccination or missed booster shots, they may still be susceptible to parvovirus.
  2. Weakened immune system: Older dogs with underlying health conditions, such as chronic illnesses or immune disorders, may have compromised immune systems. This weakened defense mechanism can make them more susceptible to parvovirus.
  3. Lack of antibodies: Some older dogs may have low antibody levels against parvovirus, either due to inadequate vaccination or waning immunity over time. This can increase their risk of infection.
  4. Exposure to the virus: Older dogs that come into contact with infected feces, contaminated environments, or other dogs carrying the virus are at risk of contracting parvovirus.

Parvovirus in Older Dogs

Symptoms of Parvovirus in Older Dogs

  1. Loss of Appetite: A sudden and significant reduction in appetite is a common symptom of Parvovirus in older dogs. They may show disinterest in their regular meals or refuse to eat altogether.
  2. Vomiting: Dogs infected with Parvovirus may experience frequent episodes of vomiting. The vomit may contain mucus, bile, or even blood in severe cases.
  3. Diarrhea: Parvovirus causes severe diarrhea in dogs, which is often profuse, watery, and foul-smelling. The stool may be yellowish or bloody, indicating intestinal damage.
  4. Lethargy: Older dogs with Parvovirus tend to become lethargic and weak. They may lack energy, appear uninterested in their surroundings, and sleep more than usual.
  5. Fever: Parvovirus can cause a persistent fever in infected dogs.
  6. Dehydration: Due to vomiting and diarrheas’, older dogs with Parvovirus are at a high risk of dehydration. Signs of dehydration include sunken eyes, dry gums, and skin elasticity loss.
  7. Weight Loss: Rapid weight loss is a common symptom of Parvovirus in older dogs. The virus interferes with nutrient absorption, leading to a significant decline in body weight.
  8. Abdominal Pain: Dogs with Parvovirus may experience abdominal pain or discomfort.
  9. Weakness: Parvovirus weakens the body’s immune system, resulting in generalized weakness and lack of coordination in older dogs.
  10. Rapid Heart Rate: An increased heart rate, known as tachycardia, can occur in older dogs with Parvovirus.
  11. Pale Gums: Parvovirus can cause pale or white gums in infected dogs. This is due to decreased blood flow and oxygenation.

How is Parvovirus Diagnosed in Older Dogs?

 Diagnosing Parvovirus in older dogs typically involves a combination of physical checkup, medical record review, and laboratory tests. Veterinarians may perform a faucal test to detect the presence of the virus or blood tests to assess the dog’s overall health and immune response.

Read more about “What Can I Spray To Keep My Dog From Peeing in the House?

 Treatment Options for Parvovirus in Older Dogs

Effective treatment for Parvovirus in older dogs requires intensive veterinary care. The primary goal is to alleviate symptoms, support the immune system, and prevent complications. Treatment options may include:

Hospitalization and Intravenous Fluids: Older dogs with Parvovirus often require hospitalization to receive intravenous fluids for hydration, electrolyte balance, and medication administration. Antibiotics and Medications: Secondary bacterial infections can be treated or prevented with antibiotics .It is also possible to administer medications to control vomiting and diarrhea.

Nutritional Support: Intravenous nutrition or special diets may be recommended to provide essential nutrients while the dog’s digestive system recovers.

Blood Transfusions: In severe cases, blood transfusions may be necessary to address anemia or blood loss resulting from the viral infection.

Home Care for Older Dogs with Parvovirus

Once stabilized, older dogs with Parvovirus may continue their recovery at home under the guidance of a veterinarian. Home care may involve:

  1. Isolation and Quarantine: Infected dogs should be isolated from other animals to prevent the spread of the virus. Quarantine periods may vary based on veterinary recommendations.
  2. Fluid Therapy: Oral or subcutaneous fluid administration at home can help maintain hydration levels and support recovery.
  3. Medication Administration: Administer prescribed medications as directed by the veterinarian, including antibiotics, anti-nausea drugs, and any additional prescribed treatments.
  4. Nutritional Support: Offer small, regular meals of easily edible food to help rebuild the dog’s strength. Follow the veterinarian’s recommendations regarding the appropriate diet for recovery.
  5. Providing Comfort and Rest: Ensure your older dog has a quiet and comfortable space to rest and recover. Minimize stress and provide gentle care and attention to help them regain their strength.

Preventing Parvovirus in Older Dogs

Prevention is key in safeguarding older dogs from Parvovirus. Follow these preventive measures:

Parvovirus can persist in the environment for extended periods, making certain areas hazardous for your older dog.

 Limiting Exposure to Unknown Dogs

When it comes to preventing Parvovirus, limiting exposure to unknown dogs is essential. Avoid contact between your older dog and unfamiliar dogs, especially if their vaccination status is unknown. Interaction with infected dogs increases the risk of disease spread.

While socialization is important for dogs, it’s crucial to ensure the safety of your older dog by avoiding unnecessary exposure to potentially infected individuals.

Boosting the Immune System

Boosting your older dog’s immune system can enhance their ability to fight off infections, including Parvovirus.

Additionally, regular exercise, adequate rest, and minimizing stress are vital for keeping a robust immune system. A healthy lifestyle can help strengthen your older dog’s defenses against Parvovirus and other diseases.

Nutrition and Diet

Avoid feeding your older dog raw or undercooked food, as it may increase the risk of bacterial infections. Stick to reputable dog food brands that meet nutritional standards.

Providing a Stress-Free Environment

Create a calm and stress-free environment for your dog by providing a comfortable living space, routine exercise, and mental stimulation. Minimize exposure to loud noises, excessive heat or cold, and other stressful situations.

A stress-free environment promotes overall well-being and helps protect your older dog from diseases like Parvovirus.


In conclusion, the question “Can older dogs get Parvo?” is one that often concerns pet owners, and rightly so. While Parvo is commonly associated with puppies, it’s important to understand that older dogs can still be at risk. Although they may have a higher level of immunity compared to their younger counterparts, older dogs can still contract Parvo if they haven’t been properly vaccinated or if their immune system is compromised.

 As responsible dog owners, we must not overlook the importance of vaccination and regular veterinary check-ups, regardless of our dog’s age. Older dogs should continue to receive their scheduled vaccinations, including the Parvo vaccine, to ensure their protection against this highly contagious and potentially deadly virus.

 Remember, prevention is key. By maintaining a clean and sanitary environment, avoiding contact with infected animals, and keeping up with routine vaccinations, you can significantly reduce the risk of Parvo in dogs of all ages. Your furry companion deserves a healthy and happy life, so don’t take any chances when it comes to their well-being.


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