Russian-French surgeon Serge Voronoff, or the Monkey Gland Man, stunned everyone by implanting monkey testicles in his patients to cure impotence. He had apparently also injected himself with dog and guinea pig testicle extracts. Unfortunately, the scientific community dismissed his claims as simply the result of placebo effect.
Albert Calmette was a French bacteriologist, physician, and immunologist. He is credited with discovering the Bacillus Calmette-Guérin. He is also credited with inveting the first antivenom for snake bites. Albert Calmette also helped develop amylolysis, which was used extensively in industrial brewing.
Pierre Paul Emile Roux was a French bacteriologist, physician, and immunologist. A close collaborator of Louis Pasteur, Roux was responsible for the Pasteur Institute's production of the famous anti-diphtheria serum. Credited with founding the field of immunology, Pierre Paul Emile Roux also investigated chicken-cholera, cholera, tuberculosis, and rabies. He was honored with the prestigious Copley Medal in 1917.
Jacques Benveniste was a French immunologist who served as the head of inflammation immunology and allergy at INSERM, the French National Institute of Medical Research and Health. Jacques Benveniste is also credited with founding a company called DigiBio in 1997.
Jean Dausset was a French immunologist best remembered for winning the 1980 Nobel Prize in Physiology or Medicine. He won the award along with George Davis Snell and Baruj Benacerraf. Jean Dausset is also remembered for founding the Human Polymorphism Study Center in 1984.