HUMAN AND ANIMAL VAKIOLyE. 
477 
taken up with respect to variola in man and animals, and prove 
that, inasmuch as we have shown that there is cow-pox, a horse- 
pox, and a sheep-pox, there is also a goat-pox, independent of the 
variola of other animals. 
Swine-Fox. 
Swine-pox is not a very rare disorder, and though I fail to 
find more than one outbreak recorded as occurring—though out¬ 
breaks may be frequent—in this country, yet I have been assured 
by a very observant and competent veterinary surgeon that he 
saw a large number of swine suffering from the disorder in Kent. 
No small-pox or cow-pox was present in the locality. Like the 
ovine variola, the variola suilla is a general eruptive disease, the 
symptoms being pretty constant in their development, and re 
sembling those of sheep-pox. After the febrile phenomena, which 
are often very intense and continue for some days, there appear 
on the back, abdomen, chest, neck, head and inner surface of the 
thighs, petechiae, which soon become papules. Towards the sixth 
day there are vesicles, and about the ninth or tenth day, pustules; 
the contents begin to desiccate and form crusts, which are elimin¬ 
ated in a few days, leaving a well-defined cicatrix. The eruption 
appears discrete and confluent, the disease being benignant or 
malignant, regular or irregular, according to the form it assumes. 
Young pigs are most susceptible, and the mortality often reaches 
twenty or twenty-five per cent. Hering has seen the disease in 
older swine. The malady is very contagious, and its course and 
complications, as well as infectiousness, are very closely analogous 
to those of sheep-pox. One attack protects from another. Felix 
(Recueil de Med. Velerhiaire , 1827) describes an outbreak which 
prevailed among the swine in the Dordogne department, during 
four years; and Fueling,* * * § Greve, Spinola,f Viborgf, Pozzi, Gas- 
parin, Eisele,§ Hering, and competent veterinary authorities have 
studied swine-pox at various times. Gerlach has experimentally 
*Phy8ikalisch Medicinisch, Ocouomische Besckreibuug der Stadt Nordheim, 
1779. 
1 Schweinkrankheitcn, 1842. 
tBeliandlung des Scbweines als Hausthier, 1804. 
§ Krankheiten der Schweine. 
