INFECTIOUS DISEASES. 93 



What are the clinical forms? 



(a) Alimentary form, the mouth being the common location; 

 but the parasite may locate in the intestines, producing ulceration. 



(b) Pulmonary form, where the lungs are the seat. 



(c) Cutaneous form, where associated with certain skin affec- 

 tions. 



(d) Cerebral form, where the seat is in the cranial cavity and 

 produces symptoms similar to tumor of the brain. 



How may actinomycosis be diagnosed? 



By the symptoms, by the local swellings followed by suppura- 

 tion, and by the use of the microscope. 



What treatment is recommended? 



Hasten suppuration by poultices or hot fomentation, open the 

 abscess and irrigate with astringent and disinfectant solutions. 



Internally, potassium iodide has given the best results. In- 

 ternal antiseptics may be indicated in some of the forms; bismuth, 

 creosote, quinine, salol, etc. 



EQUINE BABIES. 



What are the synonyms? 



Madness, equine madness. 



What is rabies ? 



It may be defined to be an acute functional, contagious dis- 

 ease, occurring in the dog, cat, wolf, and fox, and transmitted to 

 man and all animals by inoculation, and characterized by varying 

 reflex and nervous symptoms. 



Define hydrophobia. 



This literally means, dread of water. There is an inability 

 to swallow water, on account of a paralysis of the muscles about 

 the throat. 



What is the period of incubation of rabies ? 



In the horse it varies from two to eight weeks; in the dog it 

 varies from one week to six months; in the ox, from two to four 

 weeks; in the sheep, from three to six weeks; in swine, from three 

 to seven weeks ; in man, from two to nine weeks. 



