WSAVA Conference: Professor Michael J. Day Discusses for Which Indications Canine VacciCheck® are Recommended

At the WSAVA Conference, the lecturer  Professor Michael J. Day, Chairperson WSAVA VACCINATION GUIDELINES GROUP, discussed for which indications Canine VacciCheck® are recommended: 

“The recent availability of in-practice rapid test kits for determining seroprotection against canine core viral diseases has revolutionized our ability to deliver vaccines in a safer and more scientific fashion. There are currently two such test systems available. The Titerchek kit is marketed by Zoetis and determines whether a dog is protected from infection by CDV and CPV. The VacciCheck® kit is produced by Biogal Laboratories and determines protection from CDV, CAV and CPV. Both are ELISA-based systems that use slightly different technology, but are well validated against the ‘gold standard’ VN and HAI tests. Although the tests may cost more than simply revaccinating the dog, there are an important tool in the annual health check and are greatly appreciated by owners who understand the benefit of not automatically revaccinating an adult dog where this might not be required. 

Serology can be used to determine whether a puppy has responded to vaccination. Testing at 20 weeks demonstrates the presence of a pup immune response (not MDA at this time) and a positive test at this time removes the need for the 12 month booster vaccine.

Serology can inform decision making as to whether an adult dog that has suffered a suspected adverse event post vaccination requires core vaccine boosters in the future. Testing of newly adopted adult dogs of unknown vaccination history can also determine whether the animal is protected or requires vaccination. In the US and Europe, progressive practitioners are now offering serological testing INSTEAD of automatic triennial core revaccination for adult dogs. Seropositive dogs do not require revaccination as they are already protected.

Serology also has a major role to play in the management of infectious disease (CDV and CPV) outbreaks in canine shelters. All dogs within the shelter are rapidly tested for the presence of antibody. Seropositive dogs (which are protected) should be separated from seronegative dogs (which are susceptible). Seronegative dogs should be vaccinated, but should not be adopted out of the shelter until beyond the incubation period for the infectious agent concerned (e.g. 2 weeks for CPV, 6 weeks for CDV). Dogs that require entry to the shelter should also be tested. Seropositive dogs may enter the shelter and be mixed with other seropositive animals. Seronegative dogs should be fostered and not enter the shelter until they have seroconverted post vaccination.”

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