Archive image from page 327 of The pathology and differential diagnosis The pathology and differential diagnosis of infectious diseases of animals differentpathology00moorrich Year: 1908 304 ACTINOMYCOSIS § 230. Infection. While actinomycosis is an infectious disease it does not seem to be transmitted directly from one animal to another. Numerous investigators have tried to pro- duce the disease by inoculating cattle, calves, sheep, goats, pigs, dogs, cats, rabbits and guinea pigs with actinomycotic lesions. The results have almost invariably been negative when pus was used, but the disease
Archive image from page 327 of The pathology and differential diagnosis The pathology and differential diagnosis of infectious diseases of animals differentpathology00moorrich Year: 1908 304 ACTINOMYCOSIS § 230. Infection. While actinomycosis is an infectious disease it does not seem to be transmitted directly from one animal to another. Numerous investigators have tried to pro- duce the disease by inoculating cattle, calves, sheep, goats, pigs, dogs, cats, rabbits and guinea pigs with actinomycotic lesions. The results have almost invariably been negative when pus was used, but the disease has developed after inocu- FiG. 72. Head of a steer with actinomycosis of the loiver jaw. (Photograph ed by Hopkins). lating cattle with pieces of tissue containing the fungus in its vegetating state. It is believed that the infection occurs in susceptible species by the introduction of the fungus on food stuffs. The supposition is that the parasite gains entrance to the living tissues through slight wounds of the mucous membrane of the mouth or throat and perhaps the alveoli of diseased teeth or during the shedding of the milk teeth. It multiplies and extends from the points of entrance. After the infected awns
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