Emanuel Edward Klein

Emanuel Edward Klein FRS (31 October 1844 at Osijek – 9 February 1925 at Hove) was a bacteriologist who was born in Croatia and educated in Austria before settling in Britain.

[5] Klein worked at the Brown Institution from 1871 to 1897 during which time he also mentored students that included Francis Darwin, Jeremiah MacCarthy, James Adams and Frederick Treves.

Several novels of the period were inspired by the case including Paul Faber, Surgeon (1878) by George MacDonald; The Professor's Wife (1881) by Leonard Graham and Heart and Science (1883) by Wilkie Collins.

[5] Klein's training in Europe however allowed him to access the microbiological techniques developed by Louis Pasteur and Robert Koch, and he wrote the first major English work in bacteriology in 1884.

Klein was able to find the comma-shaped Vibrio cholerae bacteria in the water supply where Koch had found them as well as in the stools of infected patients.

[7] In 1885, he studied the outbreak of a disease of cows which was termed as scarlet fever and isolated four species of bacteria during the research, including Streptococcus pyogenes, the causal agent.

[6] His name was originally just Emanuel and he signed as E.Klein but during his membership with the Organon Club (founded by Ray Lankester) the secretary thought it stood for Edward.