...The great breadth of the Atlantic boundary would naturally protect us from the West, but infectious disorders, such as plague, cholera, small-pox, etc... 
Samuel White Baker 「In the Heart of Africa」
...It is contagious, infectious, and will frequently appear spontaneously without any apparent cause in certain localities, assuming an epidemic form...
Oliver Hartley 「Hunting Dogs」
...The rot is not infectious...
Robert Jennings 「Sheep, Swine, and Poultry」
...Usually myocarditis results from thepreexistence of blood poisoning or of some infectious febrile disease...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...It is now generally recognized that when abortionoccurs in herds from time to time, it is safe to assume that the disorder is ofan infectious nature and should be so treated...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...—The diagnosis of infectious abortion is made from thechanges occurring in the fetal membranes and in the expelled fetus...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The growingtendency of specialization in agriculture, which leads to the maintenance oflarge herds of cattle, sheep, and hogs, makes infectious diseases more commonand more dangerous...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...During the course of infectious diseases secondary diseases or complicationsmay arise which are largely caused by bacteria other than those producing theoriginal malady...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...It is generally conceded that continual change and movement of animals are themost potent means by which infectious diseases are disseminated...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...These suppositions areunfounded, and the view of authorities to-day is that it is a disease of apeculiar kind, not identical with any other known infectious disease...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The generalsymptoms are very much like those belonging to other acute infectious orbacterial diseases...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Like other infectious diseases, malignant catarrh pursues a longer orshorter course in accordance with the severity of the attack...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Larvæ which have developedto the infectious stage, unlike the eggs and early larval stages, are able tosurvive long periods of freezing and dryness...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...But we regret to say, we have been forced to submit to evidence, and toacknowledge that the present infectious typhus is not the one we requireto provide us with the anti-typhoid virus...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...At the third or fourth generation, the virus, modified and attenuated inits infectious principles, would no longer have been mortal in itseffects, as experience has proved in Russia...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
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