Theobald Smith FRS(For) HFRSE (July 31, 1859 – December 10, 1934) was a pioneering epidemiologist, bacteriologist, pathologist and professor. Smith is widely considered to be America's first internationally-significant medical research scientist. Smith's research work included the study of babesiosis (originally known as Texas cattle fever) and the more-general epidemiology of cattle diseases caused by tick borne diseases. He also described the bacterium Salmonella enterica (formerly called Salmonella choleraesuis), a species of Salmonella, named for the Bureau of Animal Industry chief Daniel E. Salmon. Additional work in studying the phenomena of anaphylaxis led to it being referred to as the Theobald Smith phenomenon. Smith taught at Columbian University (now George Washington University) and established the school's department of bacteriology, the first at a medical school in the United States. He later worked at Harvard University and the Rockefeller Institute. Source: Wikipedia (en)