...It is called the "sleepy disease," and is considered incurable... 
Horatio Bridge 「Journal of an African Cruiser」
..." But she was incurable...
William Still 「The Underground Railroad」
...It is consideredas an almost incurable disorder, but is sometimes removed bytrepanning...
Richard L. Allen 「Domestic Animals」
...It is generally considered incurable, and when thoroughlyseated, it may be deemed an act both of humanity and economyto terminate the existence of its victim at once...
Richard L. Allen 「Domestic Animals」
...So when the humerus orfemur are fractured, the bones may unite of themselves; but in that caseshortening of the limb and incurable lameness is certain to ensue...
Dinks, Mayhew, and Hutchinson 「The Dog」
...In somecountries, the governments, considering the distemper incurable, onlyseek to stamp it out wherever it may appear...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...It is highly contagiousin its later stages, and if not cured before it takes on the contagiousform is incurable...
Carl Dare 「Profitable Squab Breeding」
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