Can A Dog Get Parvo Twice?

If a dog has parvovirus, can it get it back? If not vaccinated: how long does it take for a dog with parvovirus to die, or can it overcome it? Can a dog get Parvo twice? If your dog has already overcome Parvo and you fear that he may have it again, here we answer all your questions.

Simply put, yes. It is quite complex in detail but not impossible at all. One of the hypotheses that are considered to explain that a vaccinated dog can contract parvovirus is the appearance of a new strain.

Can A Dog Get Parvo Twice

However, remember that it is best that you consult with a veterinarian, and they examine your dog. As for all the information about dog diseases on the internet, the one we offer you here is only in general lines, but each dog is different.

Parvovirus: What Is It?

Parvovirus was discovered in 1978. Parvovirus is an infectious viral disease, very contagious, and can be fatal to our friends the dogs. The canine parvovirus causes this canine disease. This disease is the cause of the death of thousands of dogs around the world. It is also called hemorrhagic gastroenteritis. Fortunately, since 1978 a vaccine has been discovered to fight against this damn virus! It is a disease that affects animals like dogs, wolves, or foxes, but apparently not humans.

This virus is very resistant. It can withstand months outdoors, regardless of the temperature, as well as many disinfectants. 

The main victims of this disease are puppies, unvaccinated adult dogs, and dogs in the community (breeding, shelter, etc.). It is a quickly fatal disease for your dog. It can take your dog away in 2 to 5 days.

Contamination occurs mainly in the external environment. Your dog can be infected by licking by eating the stool or vomit of a sick dog. It can also be spread by drinking water from a sick dog by contact with contaminated equipment, clothes, and shoes.

Parvovirus destroys the animal’s white blood cells. Its immune defenses are weaker, and the dog catches other infections. It complicates its recovery and reduces its chances of survival.

How Long Does It Take For Parvovirus To Kill A Dog: If you stay home without going to the vet and without treating it, your dog could die in less than two days. The parvovirus virus is very aggressive. It can make the bacteria in your body champion it freely, causing irreversible damage.

But the worst enemy of premature death is dehydration so strong that it causes the disease.

What Are The Parvo Symptoms In Dogs?

The incubation of parvovirus lasts between four and five days. Thereafter, the disease’s acute phase ensues, during which the dogs suffer from depression, vomiting, and diarrhea. Some dogs have a high fever (41ºC), although others do not have a fever. Puppies may have a tucked belly and abdominal pain. Diarrhea contains mucus and blood and dehydrates quickly.

In some cases, puppies have heart inflammation. However, this is less common today due to the vaccination of breeding dogs between two and four weeks before conception. With this, we achieve that the antibodies of the little ones increase and are more protected.

The most common symptoms that parvovirus is causing you to harm is:

  • Very bad and bloody diarrhea
  • Very aggressive vomiting
  • Weakness
  • Pain and discomfort

Symptoms of parvovirus appear suddenly and without warning. If it’s a puppy, go urgently to a vet.

Can A Dog Get Parvo Twice: Can A Dog That Had Parvovirus Get It Again?

Viruses are complicated creatures because they can mutate or a different strain can appear. We can train a dog’s immune system against a virus so that it is strengthened against it. But that does not guarantee its immunity.

The parvovirus vaccine does not make your dog immune to this virus.

What the vaccine does is put the weakened Parvo virus inside your body. So the body fights it and learns to defeat it the next time it appears. This time, it is strengthened and in its natural form.

This will give your dog a better chance to fight it, but it won’t make him immune. Without the vaccine, your dog will have a 0-10% chance of survival. The vaccine reaches 80%, as long as you act fast and visit your vet urgently.

How to Know If My Dog Has Parvo?

Once your dog comes into contact with the virus, it grows very quickly. The incubation period of this virus in dogs is, on average, 4 to 7 days. Vomiting, diarrheas, fever, loss of appetite, signs of your dog’s depression are all symptoms of this disease that should alert you! The classic form of this disease is severe gastroenteritis.

If you notice any of these symptoms: see your vet immediately! It’s a veterinary emergency. When you arrive at the office, your vet will take your dog for a test to confirm the diagnosis. 

There are two types of tests: 

•    A “serological screening” test. This test is done through a blood test and concerns unvaccinated dogs. 

•    A stool test to highlight the potential disease. 

The treatment of the disease always requires hospitalization with intensive care in order to eliminate the virus.

Treatment of Parvo: How to Make Him Better?

Being such a serious disease, whenever our puppy has vomiting and diarrhea, we will consult our veterinarian. Just to be sure if it is parvovirus. We must not forget that this disease requires veterinary attention. And unless it is a mild case, the dog may be hospitalized to correct dehydration and administer electrolytes. In addition to that, doctors will be able to control vomiting and diarrhea.

There is no specific treatment for this disease. So what is done is to stimulate the dog’s immune system to prevent it and treat dehydration and other symptoms. In addition, antibiotics are often given to prevent septicemia and other bacterial complications.  

And, how to treat Parvo at home? With care and caution.

It is important to know that during the first 48-72 hours, the death of the dog can occur. In this case, dehydration is the biggest problem. To avoid it, provide fresh water in a small quantity and frequently, as well as the serum that the veterinarian recommends. Likewise, avoid feeding during the first 24-48 hours in order to avoid vomiting and diarrhea.

How to prevent parvovirus in a dog:

  • Vaccines are essential
  • Giving him a good diet
  • Never depriving you of fluids
  • Making him happy every day
  • Preventing him from eating anything off the street
  • Going to the vet at the slightest symptom

But even if you do all of this, you can get parvovirus; But don’t worry. Because if you’ve done things right, the vet will be able to treat him to get ahead, even without any Sequela. 

And Once It Passes, Can A Dog Get Parvo After Vaccine?

There is a good chance of Parvo relapse in dogs. However, it is not common, but not impossible either.

Parvo virus must be treated sometime after leaving the veterinarian. There could be traces of virus that reactivate the disease. You also have to keep your vaccines up to date and never neglect yourself. Because new strains could appear for which your body is not prepared.

With age, your dog’s immune system strengthens, and having passed the disease makes him strong against it. In any case, we recommend that you disinfect the house well so that no traces remain. In principle, it is said that you can be prevented against it for the next 2-3 years. But do not get lousy about being protected.

How Many Days Does Parvovirus Last In A Puppy?

If you are worried that the puppy survived Parvo will get it again, you wonder how many days it lasts in his body. Because there is a tiny chance that he will be infected again, knowing that it is a very persistent virus. 

Its incubation can last up to two weeks, and the first symptoms appear. But even if those two weeks go by, you can’t lower your guard. Don’t trust yourself and disinfect the house well. Separate the puppies from your litter and have all of them examined by a veterinarian. 

How to know if my dog improves from parvovirus: If you have done everything right, your dog is at that 80% chance of recovery. You will notice how the vomiting and diarrhea subside, he stops protesting, and his mood improves little by little.

He may have symptoms, and it will be a tough fight. But you will surely see him again jump, wag his tail, and smile.

Precautions to Be Taken

To avoid Parvo for dogs, precautions should be taken because it is a disease that spreads quickly. Especially as vaccinated and cured animals can be carriers without developing clinical signs. And therefore, they can continue to infect other dogs.

If you notice any symptoms and your veterinarian confirms the diagnosis, be careful. It is imperative not to walk your dog in public places until recovery (park, street, etc.). Content them with your garden to avoid spreading the disease. Same thing if your dog is not vaccinated against this disease, avoid any contact with other dogs. So he doesn’t get contaminated until his vaccination. 

Parvovirus is often fatal in newborn puppies or puppies of a few weeks old. For puppies, the vaccination will only be effective after the animal has been 12 months old. Until then, isolation is essential! 

But can an older dog get Parvo from a puppy? Yes, they can. If they are not vaccinated, it is quite possible.


Coming back to the question: Can a dog get Parvo twice? Like we explained, yes. The best prevention against this disease seems to be the vaccine. This disease is not transmitted to humans, but it can be fatal to your dog. It is therefore important to know its symptoms and characteristics. Act quickly at the slightest suspicion and make an appointment with your vet to get the best advice possible.

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