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1

Antonie van Leeuwenhoek (1632–1723): The First Microbiologist

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2

Robert Hooke (1635–1703): The First to Observe the Existence of Microorganisms

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Lazzaro Spallanzani (1729–1799): Fighting Against the Odds

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Edward Jenner (1749–1823): The First and Greatest Success of Immunization

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Agostino Maria Bassi (1773–1856): Pioneer of Studying Contagious Diseases

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Ignaz Philipp Semmelweis (1818–1865): Savior of Mothers

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Louis Pasteur (1822–1895): The Master of Microbiology

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Ferdinand Julius Cohn (1828–1898): Pioneer of Bacteriology

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Joseph Lister (1827–1912): Pioneer of Antisepsis

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Heinrich Anton de Bary (1831–1888): Pioneer of Mycology

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Thomas Jonathan Burrill (1839–1916): Pioneer of Microbe and Plant Diseases

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Gerhard Henrik Armauer Hansen (1841–1912): Pioneer of Leprosy Studies

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Robert Koch (1843–1910): The Great Medical Microbiologist

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Élie Metchnikoff (1845–1916): Phagocytosis and Immunology

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Charles Louis Alphonse Laveran (1845–1922): Discoverer of the Malaria Parasite

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Martinus Willem Beijerinck (1851–1931): Pioneer of General Microbiology

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Walter Reed (1851–1902): Yellow Fever Fighter

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Emile Roux (1953–1933) Diseases Fighter

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Emil von Behring (1854–1917): Pioneer of Serology

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Erwin F Smith (1854–1927): Father of Plant Pathology

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David Bruce (1855–1931): Pioneer of Veterinary Microbiology

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Sergei N Winogradsky (1856–1953): Founder of Soil and General Microbiology

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Kitasato Shibasaburo (1853–1931): First to Isolate Clostridium tetani and a Pioneer of Serology

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Theobald Smith (1859–1934): The Captain of American Microbe Hunters

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Albert Leon Charles Calmette (1863–1933): Antituberculosis and BCG Vaccination

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Charles J H Nicolle (1866–1936): Pioneer of Typhus Studies

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Howard Taylor Ricketts (1871–1910): Pioneer of Rickettsial Diseases Studies

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Chaim A Weizmann (1874–1952): Pioneer of Industrial Microbiology and First President of Israel

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Oswald Theodore Avery (1877–1955): Microbiological Genetic Transmission and DNA

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Frederick Griffith (1879–1941): Discovery of Transformation

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Alexander Fleming (1881–1955): The Discovery of Penicillin

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Albert Jan Kluyver (1888–1956): Unity of Biochemistry and Pioneer of General Microbiology

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Gerhardt J Domagk (1895–1964): Pioneer of Sulfur Drug Chemotherapy

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Paul Henry de Kruif (1890–1971): Gas Gangrene Research and Historian of Microbiology

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William C Frazier (1894–1991): Pioneer of Dairy and Food Microbiologist

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Ira Lawrence Baldwin (1895–1999): Pioneer of Agricultural Microbiology and Education

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Cornelis B van Niel (1897–1985): Educator and Pioneer of Bacterial Photosynthesis and General Microbiology

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Max Theiler (1899–1972): Yellow Fever Vaccine Developer

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René Jules Dubos (1901–1982): Pioneer of Bacterial Antibiotics and Environmental Microbiology

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Barbara McClintock (1902–1992): Pioneer of Microcellular Directed Genetics

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George W Beadle (1903–1989): Pioneer of Biochemical Genetics

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Edward Lawrie Tatum (1909–1975): Pioneer of Molecular Genetics

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Horace A Barker (1907–2000): Pioneer of Anaerobic Metabolism

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Deam Hunter Ferris (1912–1993): Pioneer of Epizoonotic Studies

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Herman J Phaff (1913–2001): Pioneer of Yeast Biology

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Harold Boyd Woodruff (1917–2017): Antibiotics Hunter and Distinguished Soil Microbiologist

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Ralph S Wolfe (1921 to Present): Pioneer of Biochemistry of Methanogenesis

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Esther Miriam (Zimmer) Lederberg (1922–2006): Transduction and Replica Plating

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Marvin P Bryant (1925–2000): Bacteria in Methanogenic Ecosystems

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Joshua Lederberg (1925–2008): Pioneer of Microbial Genetics

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Hubert A Lechevalier (1926–2015): Antibiotics Hunter and Actinomycetologist

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Thomas D Brock (1926 to Present): A Successful Modern Microbes Hunter

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Arnold L Demain (1927 to Present): A Giant of Industrial Microbiology

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Bruce N Ames (1928 to Present): A Pioneer of Genetic Toxicology and Molecular Mutagenesis

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Richard L Crowell (1930 to Present): Cellular Receptors and Viral Infection

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Peter Charles Doherty (1940 to Present): Pioneer of Immunology