284 THE VETERINARY DOCTOR. 
reduced condition. The virus is potent for months and may be communi- 
cated by the clothes of attendants, by food, manure, places trodden by in- 
fected animals, the milk (to calves), and other agencies. Any animal, in- 
cluding dogs, cats, swine and poultry, may be affected by the virus which is 
in the discharges and milk. ; 
Symptoms.—Chill; dullness; stupidity ; eruptions on the hoof, mouth and 
teats; diarrhcea; dim, watery, blood-shot eyes; alternate heat and coldness 
of horns, ears and nose; arched back; diminished chewing of cud; milk 
decreased, yellow and thick; udder swollen, hot and tender; hair staring 
and harsh; pulse somewhat quickened; temperature increased, perhaps to 
103° or 104°; flow of saliva; pain in the mouth, with suppressed eating. 
‘The vesicles in the mouth are first small and red, then whitish-yellow, as 
large as a bean, and transparent, then filled with a pus-like fluid, bursting 
in about eighteen hours, and leaving sores which may unite and form 
deep, irregular ulcers; the nasal membrane may be affected. The vesicles 
on the feet first appear on the crown of the hoof and in the cleft, soon 
bursting; they cause pain, swellings, lameness or inability to stand, and the 
bones may be diseased and induce serious disorders. The vesicles on the 
teats are similar to those on the mouth, with soreness and swelling, and 
upon drying leave scales. Occasionally vesicles appear in the nostrils and 
on the muzzle, eyes and vagina. In severe cases, high fever ensues, ulcera- 
tion increases, the animal is exhausted, loses flesh, discharges bloody mucus 
from the mouth and offensive matter from the nose; swoilen face; foul 
breath; small, rapid pulse; grunting; quick breathing; belly and legs drop- 
sical; diarrhcea; hoofs drop off in pieces; death in nine or ten days. In 
favorable cases, the fever subsides in about four days, and the symptoms 
decline for a week or two, when the animal recovers. 
In milch cows the case is often complicated by the vesicles bursting 
from pressure in milking, when ulcers form, the cow resists milking and 
holds back the milk, thus promoting inflammation and perhaps hardening 
of the udder; or parts of the udder may fall away in consequence of in- 
ternal ulcers, making the cow comparatively useless for milk. In such 
cases abortion is frequent. Infected calves usually die from the inflamma- 
tion of the stomach and intestines which supervenes. 
TREATMENT.—Mercurius should be given for heat, redness, dryness 
and swelling throughout the mouth; red spots on the mucous membrane of 
the mouth, which become ulcerous, burst, and unite; swollen tongue and 
face; abscesses in other parts; slimy, stringy, bloody, offensive discharge 
from the mouth. It is also useful in aiding the formation of matter and 
reducing hardness. Antimonium tartaricum is serviceable in alternation 
with mercurius. Arsenicum may be given at the beginning for harsh, 
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