fiEEF MEASLES. 



79 



value. These are confined to rendering it impossible for animals to ingest 

 eggs ot the Twiiia solium. 



C.ysticerc-us disease is rare in the north, centre, and east of France 

 and ni districts ^Yhere animals are reared in conlinement. It is commoner 

 where pigs are at liberty, such as Limousin, Auvergne, and Perigord. It 

 IS frequent m North Germany, ^vherG the custom of eating half-cooked 

 meat contributes to the propagation of Tcenia ,oUum. It is also frequent 

 it Italy. ^ 



BEEF MEASLES. 



Causation. The disease of beef measles is due to the penetration 



Fig. 38. — Cysticefcns cdlulosai in pork, c, Cysts ; v, fibrous 

 tissue capsule which forms around the cyst. 



into the connective and muscular tissues of embryos of the Tcenia miji- 

 nata, or unarmed taenia of man. 



This disease, unlike that of the pig, has only been recognised 

 within comparatively recent times, and only after AA'eisse's exjjeriments 

 (St. Petersburg, 1841) on feeding with raw flesh was attention drawn to 

 it, although as early as 178'2 the Tcenia sai/inata had been described by 

 Goeze. 



Measles in the ox is rarely seen in Prance, but is common in North 

 and Bast Africa. Alix has found it in Tunis, Duiniys and Monod in 

 Seneo-al, and it is common in the south of Algeria. The disease is due 



