ALS in French, signed “L. Pasteur,” one page, 5.25 x 8.25, May 15, 1885. Letter to an unidentfied gentleman. In full (translated): “There’s nothing to be done at present. But be assured: of 100 persons bitten, less than 10 contract rabies. You will oblige me by keeping me informed of what will happen. I have advanced very far in the study of rabies, but all I might be able to do is to prevent perhaps by treatment the day after and the days following the bite. Very shortly I will make public the vaccination for canine rabies.” Central horizontal and vertical folds, some light creases, and a couple small blocks of toning from old tape reinforcement on reverse, otherwise fine condition. Pasteur began studying rabies in 1881. A superb letter of great medical importance announcing his revolutionary, and life-saving vaccine. Pre-certified John Reznikoff/PSA/DNA and RR Auction COA.
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