Stefan Ślopek (1 December 1914 in Skawa near Kraków – 22 August 1995, Wrocław was a Polish scientist specializing in clinical microbiology and immunology. He is the great grandson of Józef Juraszek Ślopek. He is buried in the in Wrocław. Education After he had completed his secondary education in Tarnopol, he started his medical studies at the Faculty of Medicine in Jan Kazimierz University in Lviv, having graduated in May 1939. In 1945, upon presentation of the thesis "O modyfikacji lwowskiej metody serologicznego badania kiły" (On Modification of the Lviv Method of Serologic Examination of Syphilis), he was granted a degree of M.D. at the Faculty of Medicine of the Jagiellonian University in Kraków. Career In 1948, he was promoted to the rank of associate professor (docent) on the basis of a dissertation within the subject of microbiology and serology. In 1950 he was conferred a title of professor at the Department of Microbiology of the Silesian School of Medicine where he carried on his scientific research and in 1957 got a title of full professor. In 1965 Stefan Ślopek was elected a corresponding member of the Polish Academy of Sciences (PAN) and in 1973 as its full member. Stefan Ślopek was an outstanding specialist in the field of clinical microbiology and immunology. Motivated by his great interest in the above-mentioned subjects, as early as before the Second World War, he started working for a branch of the State Department of Hygiene in Lviv and at the same time, under a scientific guidance of Prof. N. Gasiorowski, at the Department of Clinical Microbiology of Jan Kazimierz University in Lviv. During World War II (1941–1945), he worked at the Institute for Research on Thyphus in Lviv with Rudolf Weigel as the head and then at its Kraków branch. At that time he was involved in production of sera, vaccines and diagnostic kits. Immediately after the war, from 1946 to 1949, he worked at the Faculty of Bacteriology of the Jagiellonian University and the Laboratory for Production of Sera and Vaccines of the State Department of Hygiene in Kraków. From 1949 to 1954 he was employed at the Silesian School of Medicine as the head of the Faculty and Department of Clinical Microbiology, also fulfilling the duties of the dean of the Medical Department of the Silesian School of Medicine and from 1953 to October 1954 the rector's duties of the above