62 MANUAL OF EQUINE MEDICINE. 



gious Diseases (Animals) Act are to be carefully observed. 

 The stables should be thoroughly disinfected with sulphurous 

 oxide gas, or by means of chlorine generated by the action 

 of sulphuric acid on calcium chloride or bleaching powder 

 (chloride and hypochlorite of calcium). The walls of the 

 stables are thoroughly washed and scraped, and may be 

 cleansed with lime-wash containing one pint of carbolic acid 

 in each bucketful. The harness and fittings and other articles 

 which have been in contact with the animal should also be 

 thoroughly cleaned with carbolised water. 



Remedies. — The remedies which have been used in equinia 

 are arsenic, iodine, cupric biniodide, potassium iodide, 

 sodium sulphite, and many others. 



Of all internal medicines, iodine is in all probability the 

 most potent in the various forms of equinia. It has been 

 given in acute glanders in man with success, and has also 

 been administered in many cases of the acute form in the 

 horse. 



VARIOLA EQUINA. 



Synonyms. — Horse-pox; constitutional grease; variole du 

 cheval ; pferdepocken. 



Definition. — Variola equina is a mild specific fever, accom- 

 panied by the development of an eruption which passes 

 through a papular, vesicular, and pustular stage, and is pre- 

 ceded by a period of incubation during which no abnormal 

 phenomena are manifested. 



Incubation varies from four to eight days. 



Diagnosis. — This disease has been mistaken for glanders 

 and farcy, and also for eczema and impetigo. 



Contagium. — Is propagated by direct contact, and probably 

 also by infection. It may be produced by artificial inocula- 

 tion in the horse and other animals, but the susceptibihty of 

 the horse to the virus of variola is greater than that of cattle 



