Modified from Barbero GJ: Recurrent abdominal pain. Pediatrics in Review 4:30, 1982 and from Greenberger NJ: Sorting through nonsurgical causes of acute abdominal pain. Journal of Critical Illness7:1602â1609, 1992.
Early Modern. Antonie van Leeuwenhoek is considered a father of microbiology as he pioneered the use of simple single-lensed microscopes of his own design. In 1676, Anton van Leeuwenhoek, who lived most of his life in Delft, Holland, observed bacteria and other microorganisms using a single-lens microscope of his own design.
Louis Pasteur is one of the âgreatsâ of science. Countless millions of people alive today owe their lives to his discoveries. Pasteur revolutionized chemistry and biology with his discovery of mirror-image organic molecules, then founded microbiology with his work on fermentation, his discovery of anaerobic bacteria, and his establishment of the germ theory of disease.