RABIES 165 



cannot be denied, and so long as these occur there 

 will always be violent objectors to all vaccination 

 among the ignorant who neither understand the 

 principle of immunity nor the possibilities of second- 

 ary infection. 



The relation of smallpox (variola) to cowpox (vac- 

 cina) is still a subject for controversy, having raged 

 without ceasing since Jenner's discovery in 1798. 



At the present time the supply of vaccine is ob- 

 tained by the continuous inoculation of calves, 

 which are kept at the vaccine laboratories for that 

 purpose. 



RABIES, OR HYDROPHOBIA 



Rabies, or hydrophobia, is an infectious disease 

 which is communicated from one animal to another 

 or to man by a bite. The name hydrophobia (fear of 

 water) is a misnomer, as the subjects suffer no fear 

 of water, but have a dread of the act of swallow- 

 ing anything, which causes severe spasms of the 

 muscles of the throat. 



All attempts to discover the organism contained 

 in the virus of hydrophobia have so far been fruitless. 

 That the disease is caused by a microorganism 

 seems to be accepted as a fact, as there are many 

 points of resemblance between the infection of rabies 



