After checking various sites and looking up through the AVMA, and phoning my own vet. Recent research points to the fact that Vaginal scrapings along with discharge testing , can identify the virus present in pups. Of course the issue is not so much if you do the testing , but if those with infected animals still breed unethically.
It is still very much an honor sustem, unfortunately many breeders aren't quite as honest as we would like to believe.
The adult dog: in the dog, CHV can cause painful lesions on the genitals. In the bitch, there may not be any external signs, but the bitch seems infertile or gives birth to undersize and weak litters. Careful examination may sometimes reveal small blister-like lesions on the vaginal wall. In both males and females, CHV is also known to be one of the causes of kennel cough.
Serology is of limited value due to the high prevalence of the virus within the general population. A single negative or positive result is of little value. However, paired serum samples at 2-3 weeks interval showing a rise in antibody titre (seroconversion) will indicate active infection. The best time to take the samples (from the mother) is around the time of whelping.
PCR tests are available for identifying the virus from discharges or from affected pups. PCR will be negative when the virus is latent.
I think testing 2-3 weeks apart along with a titre for antibodies is a safe and wise course, and of course if results are positive then to neuter the animal.
I hope that helps, as nothing is to be feared more than the unknown, and with a solid approach to good animal husbandry the unknowns evaporate.
Maybe I should add Herpes into the title of the thread
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