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.
«Linear objects damage a greater amount of the bowel, may cause
less obvious clinical signs in the patient and can be harder for the vet to diagnose by clinical examination and X-rays,» says Hayes.
In Australian Shepherds, Beagles, and Giant Schnauzers, affected puppies generally show
obvious clinical signs by three months of age.
Some ferrets with tumors of the pancreas show
no obvious clinical signs or may show only intermittent signs.
However, they are rarely diagnosed and properly treated due to lack of
obvious clinical signs and insufficient training of veterinary professionals.
In its initial stage, when the growth is small, it's not going to be painful, you won't be able to feel it, and there will be
no obvious clinical signs.
However, in many cats with mild iatrogenic hypothyroidism, very mild or
no obvious clinical signs are seen.
Affected dogs may not have
any obvious clinical signs (symptoms), especially when they are very young.