The virus first emerged in the United States, Europe, Asia and Australia in 1978, when a virus similar to feline panleukopenia virus crossed over from cats to cause a new type of disease among domestic dogs. Within two years the virus had spread worldwide, killing thousands of dogs and possibly infecting millions more.
Parvo in puppies is caused by the canine parvovirus. This virus is highly contagious and spreads through direct contact with an infected dog or by indirect contact with a contaminated object. Your puppy is exposed to the parvovirus every time he sniffs, licks, or consumes infected feces.
The virus affects dogs' gastrointestinal tracts and is spread by direct dog-to-dog contact and contact with contaminated feces (stool), environments, or people. The virus can also contaminate kennel surfaces, food and water bowls, collars and leashes, and the hands and clothing of people who handle infected dogs.
This includes contact with the feces of an infected dog, or objects that contain the virus (shoes, clothes, bedding, bowls, grass, carpets, floors, etc). Parvo is a very hardy virus in the environment and is resistant to extreme heat, freezing, detergents and many disinfectants.
Canine parvovirus (CPV-2), first recognized in 1978 as a new pathogen of dogs, was probably derived from a very closely related virus in cats, feline panleukopaenia virus (FPLV) or a closely related carnivore parvovirus (FPLV-like virus).
Parvoviruses are capable of infecting and causing disease in carnivores and are found worldwide. Wildlife species that can be infected with parvoviruses include coyotes, wolves, foxes, raccoons, minks, and bobcats. Parvoviruses can also infect domestic cats and dogs.
Financial hardships caused by the pandemic have also prevented many pet owners from keeping up with their companions' vaccine protocol. While life has, in many ways, gone back to normal since the early days of the pandemic, parvo cases remain on the rise in many areas.
Parvovirus can survive months on surfaces such as concrete so infections can still be transmitted to new dogs after your dog is recovered. This is especially important to consider when thinking about bringing another puppy into your home, either to add to your family or even if they are just visiting.
High heat will kill parvovirus but it has to be temperatures of around 120-130 degrees Celsius for a period of 15 minutes. Sunlight can also deactivate the virus.
Parvo, as it is typically called, or CPV, lives well in the environment, both indoors and outside. It is a non-enveloped virus, which means it lacks a membrane often called the envelope that are stronger than enveloped ones.
Parvo is a preventable disease, but even vaccinated dogs are not 100% protected from the virus. Vaccines for the parvovirus are recommended for all puppies and are usually given in a series of three shots when the pup is between 6-to-8 weeks old, again at 10-to-12 weeks, and at 14-to-16 weeks.
Even if your puppy is vaccinated, and has created antibodies to fight off the infection, she can still become infected with the virus. If you live in a high-risk area or have met a Parvovirus-infected dog your puppy can pick up a large amount of virus material from this interaction.
Commonly called “parvo”, the organism is very stable in the environment, able to withstand freezing temperatures and many disinfectants to survive as long as seven months in a contaminated area.
Products that are effective at killing parvoviruses include Rescue™ (accelerated hydrogen peroxide), potassium peroxymonosulfate (e.g., Virkon® or Trifectant®), calcium hypochlorite (e.g., Wysiwash®), bleach, and sodium dichloroisocyanurate (e.g., Bruclean®).
The first sign of parvo for puppies is often lethargy, lack of appetite, and a fever. Canines will begin to suffer from vomiting and diarrhea as the virus progresses, and can experience dehydration and a high heart rate as a result.
Avoid high-traffic areas, like dog parks, where the other dogs' vaccination and infection status is unknown. The American Veterinary Society of Animal Behavior recommends that puppies have at least one parvo vaccination seven days prior to socialization in safe settings, such as puppy classes.
A University of Sydney study has found that canine parvovirus (CPV), a highly contagious and deadly disease that tragically kills puppies, is more prevalent than previously thought with 20,000 cases found in Australia each year, and nearly half of these cases result in death.
Parvo can live in the ground, the grass, on bushes – pretty much anywhere (although it is not an airborne virus). Disease prevention is always less costly (and risky) than treating a condition your pet has developed.
In the U.S., people tend to get infected with parvovirus B19 more often in late winter, spring, and early summer. Mini-outbreaks of parvovirus B19 infection occur about every 3 to 4 years. Since parvovirus B19 only infects humans, a person cannot get the virus from a dog or cat.
Despite there being an effective vaccine for the illness, parvo remains fairly common, Dr. Whitney Miller, Petco's chief veterinarian told USA TODAY. This is in part because it is able to withstand weather conditions and live in the environment for upwards of 6 months to a year, Dr.
Unfortunately parvovirus infection can be fatal, despite all intervention. When they do recover, most dogs are able to go back to a completely normal life. After discharge from the hospital they may continue to shed the virus for 3-4 weeks.
Once a dog has recovered from parvo, it is unlikely that they will contract the virus again. The immunity from the virus lasts for several years, protecting your dog from reinfection. It is theoretically possible for a dog to get parvo twice, but such chances are very slim.
Certain breeds and types of dogs appear to have a higher risk of parvovirus infection or show more severe illness once infected. These include Rottweilers, Doberman Pinschers, Labrador Retrievers, German Shepherds, Bull Terrier breeds, and Alaskan sled dogs.
Certain breeds, including Rottweilers, Pit Bulls, Labrador Retrievers, Doberman Pinschers, German Shepherds, English Springer Spaniels, and Alaskan sled dogs, are particularly vulnerable to the disease.
This is primarily because the virus is hard to kill, can live for a long time in the environment, is shed in large quantities by infected dogs, is highly contagious, and is often fatal without appropriate treatment. This is why the parvo vaccine is considered a core vaccine for puppies and dogs.