In addition to the other samples being collected, the HEF is seeking to sequence the full genome of 6-12 dogs in the following categories:
- Dogs affected with early adult onset deafness (EAOD) who went deaf between the ages of 2 and 8.
- Dogs with idiopathic epilepsy who are over the age of 8 with no loss of hearing.
- Dogs without hearing loss or epilepsy who are over the age of 8, from lines with no known incidence of epilepsy or hearing loss.
- Dogs unaffected by EAOD, who were bred to dogs that did become affected with EAOD, and who produced at least 8 pups from such mating(s) (in one or more litters), all of whom reached the age of 8 with no hearing loss.