In 1885 the first successful vaccine for this was tested on a boy who had been bitten by a dog
[DOC] [TLE] Louis Pasteur(Rabies Vaccine) - Angelfire [PAR] When Louis began his work on rabies, it had already been discovered that the ... 
Louis first studied the saliva of animals and humans who had died of rabies and 
... he could prevent the dreaded disease in dogs, but he did not dare test the drug 
...