256 VARICELLA BOUM. CHICKEN-POX OF CATTLE. 



VARICELLA BOUM. CHICKEN Pox OF CATTLE. 



Various authors have discovered a severe pustular eruption 

 of the teats of cows, occurring when they are fed on vine 

 leaves, which are often given to them on the Continent, or 

 other green food, 



Symptoms. Some constitutional disturbance, though 

 slight. Pustules form round the coronet of the hind feet, 

 rarely on the fore-feet or on the lips, but very constantly 

 on the teats, commencing in the shape of very small hard 

 inflamed knots on the skin, which suppurate. The matter 

 is discharged, and a scab forms over each pustule. The 

 disease lasts from twelve to fourteen days. Gelle' has com- 

 pared it to acute ecthyma in man. 



Treatment is very simple, and indeed precisely similar to 

 that suggested for epizootic aphtha. 



A form of varicella has also been described as occurring 



o 



in sheep, and the principal observer has been Haxthausen 

 It seems to be a variety of the true sheep pox. 



