Parvo In Puppies – What You NEED To Know

Parvo in puppies is very serious, and just the words ‘Parvo Virus’ can strike fear into the heart of most puppy owners. And with good reason……

Beautiful Rottweiler Puppy 10 weeks

Canine Parvovirus is a highly contagious, extremely serious illness, and it can literally kill a young puppy in less than 48 hours.

To protect your little one, you need to be aware of the symptoms of parvo and seek immediate veterinary help if you think your puppy may have contracted this disease.

When you own a Rottweiler puppy, it’s even more vital that you are ‘on the ball’ in this area, because in spite of their size and strength, Rottweilers are one of the breeds that have proven to be extremely vulnerable to Parvo.

They catch Parvo very easily, and succumb to it more quickly than other, less-susceptible, breeds.

Other black and tan breeds such as Dobermans are also included in this ‘high-risk’ group, as are Labrador Retrievers and Pit Bulls.

Unvaccinated (or partially vaccinated) pups who don’t get immediate and aggressive care, have approximately 20% chance of survival.

That means there’s an 80% chance that they will die.

If you recognize the early symptoms in an unvaccinated pup his chances of recovery are closer to 85% – 90% IF you get him to your veterinarian IMMEDIATELY.

Although for Rottweilers and the other most vulnerable breeds, the statistics are not quite so good.

The best way to prevent Parvo in puppies is by making sure that your pup gets vaccinated on time.

The first set of puppy vaccinations are usually given at around 7 – 8 weeks of age, and then again around 10 – 11 weeks, and between 13 – 14 weeks.

For Rottweiler puppies, a fourth Parvo vaccination should be given somewhere between 16 and 20 weeks of age for maximum protection.

Although my website is dedicated to Rottweilers, Parvo affects puppies of all breeds and kills rapidly and indiscriminately.

The information below will help you keep your puppy safe, whether he’s a Rottweiler or not!

Please take a few minutes to read it through carefully and bookmark the page or print it out so it’s close at hand in an emergency.

With Parvo, every minute counts!


What Is Parvo?

At the risk of stating the obvious Canine Parvovirus is a contagious virus! And there is no ‘cures’ for a virus.

There is more than one type of Parvo, but the most common type of Parvo in puppies is usually a variety of CPV2.

Research indicates that there are different sub-strains within this main CPV2 ‘type’, and that these newer strains are continually emerging and developing.

Vaccines are constantly being re-worked to be effective against these developing strains.

Parvo is spread through contact with the feces of infected dogs. It’s so infectious, that there doesn’t even have to be direct contact with fecal material.

The virus can be transmitted on shoes, hands, tires, by other animals and so on, and your yard or home could be contaminated without you even knowing it. Be very vigilant!

Parvo in puppies is most often seen in the form of ‘enteritis’ which attacks and kills the cells that line your pup’s intestines.

Canine Parvovirus prevents your puppy from absorbing nutrients/fluids, and causes severe gastro-intestinal symptoms such as severe canine diarrhea and vomiting, resulting in dehydration.

If the fluid loss is extreme, that combined with the virus itself can result in shock, organ failure and death, sometimes within hours.

About The Parvo Vaccine……

Vaccinating your puppy against parvo virus is the best protection you can give him. BUT, due to the complex interaction of the vaccine itself and the natural immunity your pup received from his momma, there is always going to be a ‘window of vulnerability’.

You can read more about the timing of vaccinations, and why one or two rounds of puppy shots doesn’t mean that your pup is fully protected, on my Puppy Vaccinations page.

Because of this, it’s vital never to allow your Rottweiler puppy to come in contact with unvaccinated puppies or dogs or areas where stray or unvaccinated dogs may have been until he’s had at least 3 Parvo vaccinations (and preferably 4)!


The incubation period (time between exposure & symptoms) is between 3 and 14 days.

Most pups show signs quickly, within a couple of days of being exposed, but others may take up to two weeks to become symptomatic.

The virus is often found in the feces of infected pups several days prior to any symptoms appearing. It is also present for at least 2 weeks after the puppy has completely recovered.

Learn about Parvo symptoms, and get all the information you need to recognize Parvo in puppies, by visiting my Parvo Symptoms page.

A less common form of Parvo can attack the heart. This cardiac strain is most often seen in very young puppies (uncer 8 weeks old) and can cause sudden and unexpected death.


Treating Parvo In Puppies

Because Canine Parvovirus is a virus, there is no ‘cure’, however getting IMMEDIATE veterinary attention for an infected puppy can make the difference between life and death….. and every minute counts!

Sad little Rottweiler puppy - black and white photo

This is because Parvo in puppies causes rapid and severe dehydration, blood loss, sepsis, and organ damage which is usually fatal if not treated right away.

I really can’t stress this enough……

If your pup is showing symptoms of Parvo, get him to your veterinarians office right away (or even a 24 hour emergency pet hospital if necessary). Intensive and immediate supportive care is the only way to give your puppy a chance at beating this disease!

One of the biggest parts of this supportive care is giving the sick puppy IV fluids to replace those that have been and to restore the pupd electrolyte balance.

Secondary bacterial infections are very common with Parvo and antibiotics are usually given to help combat these. Often anti-nausea drugs, steroids and other medications are an important part of the treatment plan.

Every puppy is different, and so is the way their body reacts to the virus and how they respond to treatment.

Puppies whose immune system is being put under pressure by other health conditions, parasites, poor nutrition, stress and so on, are often more severely affected than pups who are otherwise healthy and strong.

Symptoms worsen very rapidly, and a puppy who looks just mildly ‘under the weather’ in the morning, can be seriously ill by nightfall.

The ‘acute stage’ of Parvo in puppies usually lasts between 7 and 10 days, and if your puppy survives for this length of time, he has a good chance of making a full recovery.

But, there are no guarantees with Parvo, and it is possible for a pup who seems to be improving, to have a sudden relapse and vice versa.

After 10 – 14 days a pup will normally begin to slowly improve, vomiting will lessen and so will the diarrhea, he may be able to eat/drink a little, and his strength will begin to trickle back.

Parvo in puppies takes a huge toll on their health, and it may take weeks (sometimes a couple of months) for a puppy to regain his energy and the weight he lost while sick. Your little guy will look very skinny and sorry for himself for some time afterwards, but most pups who survive Canine Parvovirus, suffer no long-term effects.

On the positive side, a puppy who recovers fully will usually be immune to Parvo for several years, if not for life. But remember, there are several different strains of the disease, and immunity to one strain doesn’t necessarily translate into immunity to another.

Although severe diarrhea is one of the main symptom of Parvo Virus, there are many other conditions that can cause this.

These include a sudden change in diet, worms or other parasitic illnesses such as Giardia or Coccidiosis, ‘dietary indiscretions’ and so on.

See my Dog Diarrhea page for info. on symptoms, evaluation and treatment of diarrhea in dogs.

You can learn more about the most common dog diseases and their symptoms on my Dog Diseases And Symptoms page. Knowledge is the key to keeping your puppy safe.

If your puppy has repeated diarrhea and vomiting, seems very tired, won’t/can’t eat or drink and looks sick or depressed, Parvo should always be considered a possibility.

Parvo in puppies is always an emergency situation so don’t take a ‘wait and see’ attitude if you’re at all concerned. Time is not on your side!


Canine Parvo Decontamination

Parvo virus is VERY hardy, and it can survive in the environment for a long period of time, possibly even years.

It’s not affected by sun, rain, extreme cold or extreme heat, and is resistant to almost all cleaning products and chemicals.

The best way to eliminate the virus is to use a solution of chlorine bleach and water (1/2 cup of bleach to 1 gallon of water).

Thoroughly wash down all hard surfaces including outdoor concrete areas, indoor floors, walls, toys, food bowls etc. with this solution.

You can soak grass/soil with the solution as well, but it’s much more difficult to eradicate the virus from these areas.


Other pages you might find useful…..




About The Rotty lover 2122 Articles
My name is Dr. Winnie. I earned a Bachelor of Science in Psychology from Duke University, a Masters of Science in Biology from St Georges University, and graduated from the University of Pretoria Veterinary School in South Africa. I have been an animal lover and owners all my life having owned a Rottweiler named Duke, a Pekingese named Athena and now a Bull Mastiff named George, also known as big G! I'm also an amateur equestrian and love working with horses. I'm a full-time Veterinarian in South Africa specializing in internal medicine for large breed dogs. I enjoy spending time with my husband, 2 kids and Big G in my free time. Author and Contribturor at SeniorTailWaggers, A Love of Rottweilers, DogsCatsPets and TheDogsBone


  1. bought a puppy had it for about 7 days she got real sick took her to vet she had parvo they kept her 4 days we brought her home 6 days ago she is throwing up again is this normal she is eating and drinking water

  2. One out of my puppies was up & lost appetite to eat. I took to vet doctor same day. But 3 days later the remaining 4 was sick also & i had to take them vet hospital. They administered about 5 different fluid & injection, but one of them was still throwing up after taking them home & not eating food except water. Hope they will be okay? I can’t afford to loose them. What can i do?

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