now the stupid question what is cae
Caprine Arthtitis Encephalitis
(spelling?!)
It can kill, its a retro-viral condition (as is HIV - incurable atm) that is passed on via bodily fluids, colostrum etc.
Kids often die early on, encephalitis symptoms - brain swelling.
Adults show more arthritic conditions - poorly & painful joints, knobbly knees, boney & weight loss,
balance problems, and seizures, shorter life span.
Get them tested before you frighten yourself reading up on it!
If you want to breed, billy-goat owners should insist on seeing a negative test certificate before breeding...
It is getting rarer in this country, due to testing & non-breeding / protective kid raising (bottle feeding etc) and the idea is that it should be eventually "bred out" (not the right phrase but the best I can manage just now!)
hope that helps...