A majority of affected cats do not show obvious clinical signs. (wpvet.com)
Not all dogs with Elbow Dysplasia will show obvious clinical signs of lameness. (theveterinaryexpert.com)
Veterinarians and immunologists estimate that if one dog in a kennel is affected, the infection will probably be transmitted to nearly all of the rest, even though obvious clinical signs may appear in only 75 - 80 % of the kennel's residents. (essfta.org)