6381091 First course in technical microbia at the Institut Pasteur, with Dr. Pierre Paul Emile Roux and Alexandre Yersin (b/w photo, 1889) by French Photographer, (19th century); Private Collection; (add.info.: First course in technical microbia (teaching microbiology) at the Institut Pasteur, March 15, 1889, by Dr. Pierre Paul Emile Roux (1853 - 1933, sitting in the center, hands crossed) attended the preparation by Alexandre Yersin (1863 - 1945, third sitting from the right) - medicine, immunology, vaccine, vaccination).