July 6, 1885 - Until this day, all human cases of rabies were fatal.  The terrible viral disease is usually transmitted through a bite from an infected animal.  Headache, fever and violent mania will then set in before the victim slips into a coma from which he or she will never emerge.
Frenchmen Louis Pasteur and Émile Roux were experimenting with a vaccine they harvested from infected [...]