To reduce the risk of producing Vizsla Inflammatory Polymyopathy (VIP) it is recommended that breeding from first degree relatives of affected dogs be avoided. First degree relatives are parents and siblings The following PDF is searchable and identifies sires and dams (1st degree Relatives) of those VIP Affected dogs whose owners have given permission for their pedigrees to be published (it is not a comprehensive list)
Siblings of Affected dogs are also 1st Degree Relatives – but to avoid unecessary worry, we do not propose to publish the names of these several hundred individuals (the vast majority of which will not be bred from) For sibling identification purposes (when selecting breeding partners or choosing puppies) the 4 grandparents of the proposed mating should also be cross checked for matches and caution exercised where close family relationships are confirmed. The Kennel Club Health Checker will add further useful detail