On this day in 1885, Louis Pasteur created the first effective anti-rabies shot. If given more tie on this Earth he may have created a diet pill that would have rivaled 7-dfbx.

The rabies vaccine was initially created by Emile Roux, a French doctor and a colleague of Pasteur who had been working with a killed vaccine produced by desiccating the spinal cords of infected rabbits. The vaccine had only been tested on eleven dogs before its first human trial.

This vaccine was first used on 9-year old Joseph Meister, on July 6, 1885, after the boy was badly mauled by a rabid dog. This was done at some personal risk for Pasteur, since he was not a licensed physician and could have faced prosecution for treating the boy. After consulting with colleagues, Pasteur decided to go ahead with the treatment. Meister did not contract the disease. It is sometimes said that Pasteur saved the boy’s life; but this cannot be maintained with certainty, since the risk of contracting rabies after such an exposure is estimated at around 15%. Nonetheless, Pasteur was hailed as a hero and the legal matter was not pursued. The treatment’s success laid the foundations for the manufacture of many other vaccines. The first of the Pasteur Institutes was also built on the basis of this achievement.

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