Tag Archives: parvovirus

Vaccination management

I meet owners who express concern about over-vaccination; more often than not, this has led them to the decision on not to vaccinate their dog. If they don’t send their dog to a boarding kennel or day care, there is little motivation for them to do so – other than any regular visits to their vet.

I can understand the concerns, but I also get concerned that these owners are relying on herd immunity – the odds that the majority of the herd (in this case, the dog population) are immunised and so their dog isn’t at risk because most animals are protected.

But then we have communities, like last year on the West Coast, who experience parvovirus infections across a range of puppies and dogs…

This blog is a re-print of an article I wrote for NZ Dog World magazine in 2014.  There is the option to titre test our dogs to test their levels of immunity and to give us more information on whether to vaccinate or not.


Titre testing is available in New Zealand but few dog owners appear to know about it, says Karen Cooper, Laboratory Manager with Gribbles Veterinary in Auckland.  “This testing option was not previously available here, but despite its recent introduction the uptake of the testing has not been huge.”

calming a cute puppy patient at the vet's

Vaccination time… or is it? (photo courtesy of Gribbles Veterinary)

A titre test measures the levels of antibodies in the blood.  Testing can be done for immunity to canine parvovirus and canine distemper virus.

Dr Jean Dodds, who is a leading holistic veterinarian and founder of Hemopet, a non-profit blood bank for dogs in the USA, says that research has found that an animal’s titre level remains constant for years.  Therefore, there is little risk that an animal will be misdiagnosed as having sufficient immunity.

A negative titre test would mean that the dog requires a booster vaccination, whereas a positive test would mean it does not.

Dr Dodd’s vaccination protocol calls for vaccine antibody titres to be undertaken every three years.  For most veterinary practices in New Zealand, three-yearly booster vaccination is routine.  Titre testing could be done in lieu of an automatic vaccination but in most cases the dog owner needs to ask for it.

The NZVA’s policy on vaccine use states:

Veterinarians should maintain a professional approach to all aspects of the use of vaccines. This includes encouraging widespread vaccination as an important means of preventing and controlling infectious diseases while ensuring that vaccines are not used unnecessarily.  Veterinarians should aim to maintain the profession as the source of informed knowledge on the use of vaccines and be responsible for the correct use of these agents.

Veterinarians should adhere to their ethical and legal obligations by informing their clients of the risks and benefits of vaccination of companion animals, keeping comprehensive patient records and vaccination certificates.

Why titre?

The most popular application is in puppies to check for an effective immune response; a titre test can be performed approximately two weeks following the final vaccination.

In older dogs, the main concern is avoiding the risks that are associated with vaccination.  These risks may involve localised swelling, lethargy, fever and allergic reactions ranging from mild to severe.   There may be no need to expose their bodies to the pressures associated with vaccination if they have sufficient immunity.  With rescue dogs, titre testing can provide insight into their immune status.

One issue for some owners is whether their boarding kennel will accept the tests.  The kennels I spoke to for this article varied in their position from “We require dogs to have a current vaccination certificate to “We would like to think of ourselves as educated and discerning and therefore we are happy to accept results of a titre test.” 

When boarding your dog, it is important to understand that there is no titre for kennel cough and so vaccination is likely to be needed.

Titre testing may not be suitable for every dog; re-vaccination may not be suitable for every dog.  It’s up to the owner to make an informed choice.

Kathleen Crisley, specialist in dog massage, rehabilitation and nutrition/food therapy, The Balanced Dog Ltd, Christchurch, New Zealand

Controlling the spread of dog diseases

My comments:

In my experience, the boarding operations and day cares that I and my clients have used have all been diligent about infection control. This isn’t surprising.  Provision of care to multiple dogs in the same environment is their core business and they would be risking their livelihoods and reputation by having an outbreak of disease.

The use, however, of dog parks – at least in Christchurch – seems to be on the rise and this is not always a good thing.  Many of us have experienced dogs that are out of control and owners that don’t seem particularly interested in their responsibilities for picking up poo or training/socialising their dogs.  For this reason, I also question whether or not these owners understand the importance of the core vaccinations along the lines of accepted protocols, or if they recognise when their dog is under the weather.  As the guidelines note, not all diseases are fully preventable with vaccines.

There are only a handful of dogs I have met through my massage courses where the vet has agreed the dog shouldn’t be vaccinated – based on reactions in the past – and have documented this on the dog’s health record.

So, for anyone who organises events with dogs – these guidelines should be useful.  They are geared to North American conditions, but still useful elsewhere.  They are also useful for owners to understand infection control. If you choose to go to events with other animals, reviewing the guidelines and the risk calculator will help you be prepared.

Prevention is better than cure!

Kathleen Crisley, specialist in dog massage, rehabilitation and nutrition/food therapy, The Balanced Dog, Christchurch, New Zealand


Dogs aren’t exactly famous for their personal hygiene or for maintaining a respectful distance from their canine pals. With a nuzzle, a shared ball or a bark, a dog battling a bug can easily pass it to others and, in some cases, people.

dog-play-group

Photo by Ohio State University

This becomes especially worrisome in group settings, such as dog parks, dog shows and doggie daycare, where animals can spread illness rapidly and then carry it back into their homes and neighborhoods. Protocol for keeping disease transmission at bay has, until now, lagged decades behind efforts to contain human infectious disease.

New guidance for halting the spread of a multitude of dog diseases is now available, thanks to an effort led by veterinary experts at The Ohio State University.

The advice, which appears in a user-friendly guide and in a scientific paper in the Journal of the American Veterinary Medical Association, is intended to be a tool for those in charge of canine group settings and for dog owners, said Jason Stull, a veterinarian and assistant professor of veterinary preventive medicine at Ohio State.

“When you have many dogs in a fairly confined space, the opportunities for disease transmission are everywhere,” Stull said.

Stull and his co-authors want their work to lead to written infection prevention and control plans for settings where dogs congregate.

“In veterinary medicine we’re probably 30 years behind in our infection control efforts compared to human medicine,” he said. “But a lot of the risks really can be managed with some simple steps.”

Stull and his collaborators embarked on the effort at the urging of the American Kennel Club. The researchers reviewed more than 400 academic papers related to the topic and examined published reports of outbreaks of disease in dogs before developing their advice.

The guidance they provide is intended to be an outline of the best possible approach to infection control, Stull said.

But what works in one setting won’t necessarily be practical or possible in another and those who make use of it are expected to tailor the guidelines to their needs, he said.

Among the recommendations:

• Dogs with signs of infection should be kept out of group settings.
• People who touch dogs in group settings, such as handlers, staff and judges, should frequently wash their hands or use sanitizer.
• Community surfaces and items should be regularly disinfected and sharing of items such as leashes, toys and bowls should be avoided.
• Dogs should have up-to-date vaccinations, including against distemper, parvovirus, adenovirus, parainfluenza, Bordetella and rabies – all highly contagious diseases that can lead to severe disease and death.
• Efforts should be made to keep rodents and wildlife out of areas where dogs will be, and to keep dogs out of areas most likely to include ticks, fleas and other disease-carrying pests.
• Those in charge of group settings and those who participate should avail themselves of a new online risk calculator to help them determine the potential for disease spread.
• Dogs should be kept clean – and cleaned up after.
• Organizers of group events should avoid overcrowding of dogs.
• Care should be taken with puppies and other dogs with weaker immune systems. The benefits of socialization should be weighed against the risk of illness.
• Every group setting should have on-site or off-site access to a veterinarian who can help with disease-prevention guidelines.

In practice, following this advice could mean a judge uses hand sanitizer between groups of dogs when pulling up their jowls to look at their teeth.

It could mean a parks and recreation department works to eliminate standing water in a dog park, and to stay on top of keeping the grass mowed short.

It could mean a doggie daycare operator assigns dogs to smaller play groups so that if disease spreads it will be limited.

Stull said vaccines are an excellent guard against disease spread, but many of the threats to dog health aren’t vaccine-preventable and require additional thoughtful prevention.

“It’s going to be a bit of a culture change and we need everyone involved – from the dog owners to group organizers to large organizations such as the AKC,” he said.

“People who care about dogs are really invested and want to do what they can to protect their loved ones and that’s what we’re trying to do. On top of that, a lot of these diseases can be transmitted to people.”

Patricia Haines, past president of the Ohio Veterinary Medical Association and a consultant to Stull and his collaborators, said the information they’ve provided is invaluable and science-based.

“This project will be informative to the experts, those planning competitive events and for people who manage private facilities and public situations, such as dog parks,” said Haines, who raises and shows pointers.

“Many of the dog-loving public have never thought of the risks at dog parks and other group settings,” she said.

The new infectious disease guidelines do not focus on animal shelters and rescues, which have other factors to consider and for which there are some existing established recommendations, but rather on settings in which the dogs have owners.

About 35 percent of households in the U.S. and Canada have at least one dog – totaling about 75 million canine companions in North America.

The full report, including the risk calculator and fact sheets addressing particular infectious diseases, are available through the Ohio State College of Veterinary Medicine: http://go.osu.edu/IDk9risk.

Source:  Ohio State University media release

Trial Results Promising for Curing Puppies’ Parvo

ABC News is reporting that a North Dakota company, Avianax, has treated about 50 puppies in seven states resulting in a 90 percent cure rate for canine parvovirus. Parvo spreads through animal waste and direct contact between dogs and is a major problem in animal shelters.  Read and listen to more below:

Trial Results Promising for Curing Puppies’ Parvo – ABC News.

Emerging strains of canine parvovirus

Canine parvovirus is a highly contagious worldwide disease that involves both domestic and wild canines. It can be fatal in immuno-compromised dogs or puppies that have not been vaccinated.

Photo courtesy of Kansas State University

Photo courtesy of Kansas State University

The molecular diagnostics team led by Richard Oberst, Professor of diagnostic medicine, at the Veterinary Diagnostic Laboratory at Kansas State University has developed a newer, more effective test that can detect an emerging 2c strain of the virus while also detecting the existing 2a and 2b strains.

“Canine parvovirus is a very severe disease,” Oberst said. “Usually dogs who have canine parvovirus are already immune suppressed, not only because of their young age and having immature immune systems, but also because of having intestinal parasites.”

Canine parvovirus causes hemorrhagic enteritis resulting in bloody diarrhea several days after exposure to the virus. It spreads from dog to dog through contact with feces. The virus infects lymphocytes and causes immune suppression and it also can cause dogs to bleed to death through their intestines.

Often, survival rates depend on how quickly and accurately the virus is detected. Commercial tests for veterinarians are not as effective at detecting newer strains of the 2c virus, Oberst said, and have resulted in some false negative results.

The team has developed a real-time polymerase chain reaction, or PCR, test to detect the 2c virus strain and the 2a and 2b strains. “With this test we can now test all strains simultaneously and differentiate which strains of the virus might actually be causing the infection,” Oberst said. “That’s a unique aspect to this test.”

To send samples for testing at the diagnostic laboratory, dog owners are encouraged to work with their veterinarians, who can send samples to the Veterinary Diagnostic Laboratory at Kansas State University.

Source:  Kansas State University media release