g28 Sarcosporidiosis. 



horse the Harcocystis Bertrami; iu cattle and iu buffaloes the S. Blauehardi; in sheep 

 the S. Teiiella, iu the pig the S. Miescheriana, aud in the hen the S. Horvathi. 



Infection with sarcosporidiae occurs through the iutestiual canal, 

 as the iuvestigatioiis of Smith, M. Koch, Negre and Negri prove. Negri 

 observed that the morphological peculiarities of the same kind of sar- 

 eosporidia differ according to the species of the experimental animal. 



Sarcosporidiffi were found in the muscular tissue of a llama (Eievel & Behrens) 

 which contained a toxin having a paralytic action on the central nervous system, 

 whilst Laveran &; Mesnil have recovered a poison called sarcozystin from sarcosporidsp. 



Lindner raises the question whether Miescher 's sacs are not simply encj'sted 

 vorticellary or eolpidium protozoa which have been taken up with the water from 

 pools. On the other hand Watson recognized a great similarity between the growing 

 spores of sareosporidia and the little bodies seen growing in trypano^onies, and 

 considers that mistakes and failures in diagnosis may thus arise. 



S3anptoms. Sareosporidia cause no disturbance of health except 

 in the case of horses in which symptoms of illness due to sarcosporid- 

 iosis are often exhibited. Difficult respiration was noticed in a sheep 

 and a goat (Dammann, v. Niederhausern), in an ox stiff gait (Brou- 

 wier, Tokarenko), in a pig paralysis of the hind quarters (Virchow), 

 in two pigs painfulness of the nuiseles, hoarseness, fever (Brschosniow- 

 ski), iu a horse hardening of the tongue (Hoflich) or of the tongue and 

 the lips (Hendrickx & Lienaux), and as a result of this, nutritional 

 disturbances. In one of these cases prominent nodes were found on 

 the swollen, hardened tongue of a horse. Moussu & Co(iuot saw a 

 hard diffuse swelling of the head in a horse similar to that seen in 

 purpura, further urticaria-like swellings on the sides of the body, neck 

 and under the chest, and also a diffuse swelling under the bell.y and 

 on the sheath, as well as "wooden tongue" with small, yello-\nsh red 

 nodes on the under surface of the tongue. All these swellings were 

 firm, of the consistence of cartilage, and situated under the skin ; micro- 

 scopic examination of an excised node showed the existence of sar- 

 cosporidiosis. The taking of food and water was made difficult by the 

 changes caused, and movements were executed painfully aud slowly. 

 In another case noticed by Lienaux similar swellings were present, and 

 lameness first in one leg, then another, and then in several legs; in 

 the extirpated pieces of muscle sareosporidia were found. Watson saw 

 dejection, aimless wandering about with slow step, swelling of the 

 bones of the skull. Sabrazes, Marchal & Muratet noticed fibrosarcoma- 

 like swellings on the lower chest, and a considerable hard swelling of the 

 metacarpal and metatarsal bones A\'itli formation of numerous exostoses, 

 further, progressive anemia and emaciation leading to cachexia. In 

 cattle with generalized sarcosporidiosis, Watson saw the following 

 symptoms : Emaciation, freciuent stretching of the head and neck with 

 spasmodic quivering of the affected muscles, especially the muscles of 

 mastication during the taking of food which was badly interfered with. 



The treatment is not promising; a systematic trial might be given 

 to potassium iodide, since i\Ioussu & Co(iuot saw a lessening of the 

 swellings and greater freedom of motion after its use. 



Literature. Betegh, Cbl. f. Bakt., 1909, LIT, Orig., 566.— Edelmann, Lehrb. 

 d. Fleischbesehau, 1907.— Hoflich, Miinch. Jhb., 1896-97, 75.— Lienaux, Ann., 1907, 

 594._Lindner, A. f. Tk., 1907, XXXIII, 432.— Michael, B. t. W., 1906, 619.— 

 Moussu & Coquot, Bull., 1908, 445.— Negri, Cbl. f. Bakt., 1908, XLYII, Orig., 612.— 

 Ostertag, Bibliographie d. Fleischbesehau (Lit.). — v. Eatz, Allattani, Kbzlemenyek, 

 1909, VTTT, 1.— Eievel & Behrens, Cbl. f. Bakt., 1905, XXXV, Orig., 341.— Sabrazes, 

 Marchal & Muratet, Eev. gen., 1910, XV, 177.— Watson, Journ. of comp. Path., 1909, 

 XXII, 1. 



