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41 He graduated from the university in 18_______. After graduation he worked as a physician in ____________________________. In his spare time, Robert Koch began re- searching into anthrax [ ˈæn.θræks - си- бирская язва ]: the disease regularly took the lives of both animals and hu- mans – but the cause was completely unknown. Finally, in 1876, Koch proved that anthrax is triggered by a single pa- thogen. He did his research in a poorly equipped laboratory at his home in Wollstein. In 1880 he moved with his wife and daughter to Berlin. On 24 March 1882 he __________________________________ at the Berlin Institute for Physiology and became world famous overnight. In the 19th century, tuberculosis was a widespread disease. About __________________ of the population of Germany died of the disease, known as the white plague. For his discovery of the tuberculosis bacterium Robert Koch re- ceived the Nobel Prize in Medicine in 1905. Like many scientists at the time, Robert Koch also investigated chole- ra. At the end of 1883, Koch and a team of researchers travelled to ________________ to study the disease during an outbreak. There, at the beginning of 1884, he managed to identify the bacterium Vibrio cholerae . Even though Robert Koch was hailed as the discoverer of the cholera pa- thogen during his lifetime, he did not deserve all the credit. The Italian ana- tomist, Filippo Pacini, had already seen and described the pathogen under a microscope back in 18____ – work that found little resonance in Germany at the time and that Koch was unaware of. Thanks to his knowledge on the spread of cholera and the appropriate hygienic methods, Koch helped to contain a serious cholera outbreak in Hamburg in 1892.