EPIDEMIC DISEASE OF DEER AND BOARS. 227 



SEPTIC PLEURO-PNEUMONIA IN CALVES. 



Septic pleuro-pneumonia is a disease which attacks young calves 

 within the first two months after their birth. Percussion and 

 auscultation reveal lung mischief. The disease is very rapid and 

 fatal, death occurring on the second or third day. In the less 

 acute cases one or more lobes of the lungs are found after death 

 in a state of lobular and inter-lobular pneumonia. The inter-lobular 

 connective tissue is distended with exudation, giving rise to white 

 or yellowish bands between the inflamed lobules, which produce a 

 marbled appearance, recalling the condition of the lungs in infectious 

 pleuro-pneumonia. The internal organs are congested, and there 

 are very often hsemorrhagic spots on the mucous and serous coats 

 of the small intestine. All the organs contain rods identical with 

 those of septicaemia of rabbits. Rabbits, guinea-pigs, and mice were 

 infected. A calf was injected in the pleural cavity with a broth - 

 culture, and died in twenty hours. 



SWINE FEVER. 



This disease will be described in a separate chapter. Several 

 bacteria have been isolated by different investigators. In swine 

 fever in Germany (Schwein-seuche) Lb'mer and Schiitz isolated a 

 bacillus which has been identified with the bacillus isolated by 

 Salmon and Smith from hog-cholera in America, and with the 

 bacillus of rabbit septicaemia and of fowl cholera. 



EPIDEMIC DISEASE OF DEER AND BOARS. 



A very fatal epizootic (Wildseuche) occurred in the royal game 

 preserves near Munich, destroying one hundred and fifty-three deer 

 and two hundred and thirty-four boars (Bellinger). The disease 

 lasted from twelve hours to six days. In the less acute cases pneu- 

 monia and pericarditis supervened. In cattle there was also severe 

 hsemorrhagic inflammation of the small intestine. In another form 

 it produced swelling of the head, face, neck, and tongue. The 

 virus proved fatal to rabbits in six to eight hours, and to sheep and 

 goats in about thirty hours. A pig inoculated with a few drops of 

 blood died in twenty-two hours. Kitt also investigated this malady. 

 The bacteria were found to be identical, in their appearance and 

 pathogenic properties, with extremely virulent bacteria from swine 

 fever. Schiitz distinguished them from the bacteria obtained from 

 swine fever by their pathogenic effect on pigeons, but cultures 

 obtained from swine fever do not act uniformly in this respect. 



