Alexandre Yersin was a physician and bacteriologist. He is credited with co-discovering Yersinia pestis, the bacillus that causes the bubonic plague. Also an agriculturist, Yersin pioneered the cultivation of rubber trees. He is revered by the Vietnamese people because of his association with Hanoi Medical University; a private university in Da Lat is named in his honor.
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.