Walther Kruse (September 8, 1864 - 1943) was a German bacteriologist who was a native of Berlin.
In 1888 he received his doctorate from Berlin, where he was a student of Rudolf Virchow (1821-1902). From 1889 until 1892 he worked as a bacteriologist in Naples, and in 1892 travelled to Egypt to perform research on dysentery. In 1893 he became an assistant to hygienist Carl Flügge (1847-1923) in Breslau, and in 1898 became an associate professor at the University of Bonn. Later he served as a full professor in Königsberg (1900), Bonn (1911) and Leipzig (1913).
Walther Kruse is remembered for his work in parasitology and his research of intestinal bacteria infections. He performed extensive studies of Shigella dysenteriae during an epidemic of dysentery in the Ruhr area of Germany. This organism is sometimes referred to as the "Shiga-Kruse bacillus", and its associated disease as "Shiga-Kruse dysentery". These eponyms are shared with Japanese bacteriologist Kiyoshi Shiga (1871-1957). Kruse documented his findings in a 1900 treatise titled Über die Ruhr als Volkskrankheit und ihren Erreger.
In 1914 he demonstrated that the common cold could be transmitted to healthy individuals via nasal secretions that were free of bacteria. The results of these experiments were published in a treatise called Die Erreger von Husten und Schnupfen (1914). A specialized tool used to spread material over the surface of a culture medium is called "Kruse's brush". [1]
Theodor Escherich was a German-Austrian pediatrician and a professor at universities in Graz and Vienna. He discovered and described the bacterium Escherichia coli.
Victor Babeș was a Romanian physician, bacteriologist, academician and professor. One of the founders of modern microbiology, Victor Babeș is author of one of the first treatises of bacteriology in the world – Bacteria and their role in pathological anatomy and histology of infectious diseases, written in collaboration with French scientist Victor André Cornil in 1885. In 1888, Babeș underlies the principle of passive immunity, and a few years later enunciates the principle of antibiosis. He made early and significant contributions to the study of rabies, leprosy, diphtheria, tuberculosis and other infectious diseases. He also discovered more than 50 unknown germs and foresaw new methods of staining bacteria and fungi. Victor Babeș introduced rabies vaccination and founded serotherapy in Romania.
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