262 APPLIED BACTERIOLOGY 



sprayed with a strong disinfectant solution ; the walls are 

 to be subsequently stripped and the ceilings limewashed. 



HYDROPHOBIA. 



No specific micro-organism yet isolated — Symptoms of rabies in the 

 dog — Raving madness, dumb madness — Postmortem appearances — 

 Incubation period — Pasteur's method of preventive inoculation — 

 Method of preparing the cords — Treatment of patients — Statistics of 

 persons treated — Difficulty of judging how far the results obtained 

 are due to the treatment through want of untreated cases for 

 comparison — Stamping-out system — Returns of the Pasteur Institute 

 — Antirabic serum. 



This disease, known as hydrophobia in man, or rabies in 

 animals, has existed since the earliest ages. It appears to 

 originate in carnivorous animals, as the dog, wolf, and 

 jackal, and by them is communicated to man, cattle, horses, 

 sheep, swine, deer, cats, and other animals. The disease 

 is known in almost every part of the world at the present 

 day, and is in all probability due to a specific organism, 

 but no organism has yet been proved to exist, either by 

 staining or by culture. 



Eabies in the dog assumes two forms : (1) Eaving or 

 furious madness ; (2) dumb madness. 



Raving Madness. — The earliest symptoms noticed in the 

 dog are a change in the usual habits of the animal. It 

 becomes restless, and may be seen hiding away under 

 chairs and tables, or in quiet corners. The animal's sleep 

 is broken, its appetite is depraved, and it will eat all kinds 

 of refuse, paper, rags, etc. An anxious expression of 

 countenance may be observed, with muscular twitchings of 

 the face, the eyes having a peculiar glassy stare, as if fixed 

 on some distant object, and the animal appears to be gene- 

 rally agitated and disturbed. As the disease progresses 



