Koch-Weeks bacillus

Koch-Weeks bacillus
Koch-Weeks bacillus -'wēks- n a bacterium of the genus Haemophilus (H. aegyptius) associated with an infectious form of human conjunctivitis compare PFEIFFER'S BACILLUS
Weeks John Elmer (1853-1949)
American ophthalmologist. Weeks founded a clinical laboratory for ophthalmology which came to be known for its outstanding work in bacteriological and pathological studies. His personal accomplishments included the development of a method for using X-rays to locate foreign bodies in the eye, an operation for the surgical reconstruction of the orbit, methods for the surgical treatment of trachoma and glaucoma, and the invention of a new instrument for the extraction of cataracts. In 1886, independently of Robert Koch, he isolated the bacterium, now known as the Koch-Weeks bacillus, which causes an infectious form of conjunctivitis. He confirmed the identification by successfully inoculating one of his own eyes.

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Haemophilus aegyptius.

Medical dictionary. 2011.

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  • koch-weeks bacillus — ˈwēks noun Usage: usually capitalized K&W Etymology: after Robert Koch died 1910 and John E. Weeks died 1949 American ophthalmologist, who discovered it independently : a bacterium of the genus Hemophilus associated with human conjunctivitis …   Useful english dictionary

  • Koch's bacillus — kōks , käch əz or Koch bacillus kōk , käch n a bacillus of the genus Mycobacterium (M. tuberculosis) that causes human tuberculosis Koch kȯk (Heinrich Hermann) Robert (1843 1910) German bacteriologist. Koch is usually hailed as the founder of… …   Medical dictionary

  • Koch–Weeks bacillus — …   Useful english dictionary

  • Koch-Weeks conjunctivitis — n conjunctivitis caused by the Koch Weeks bacillus * * * acute contagious c …   Medical dictionary

  • Koch — Robert, German bacteriologist and Nobel laureate, 1843–1910. See K. bacillus, K. law, K. old tuberculin, K. phenomenon, K. postulates, under postulate, K. Weeks bacillus. Walter, German surgeon, *1880. See K. node, K. triangle. * * * (kawk)… …   Medical dictionary

  • Weeks — John E., U.S. ophthalmologist, 1853–1949. See W. bacillus, Koch W. bacillus …   Medical dictionary

  • Bacillus Calmette-Guérin — (or Bacille Calmette Guérin, BCG) is a vaccine against tuberculosis that is prepared from a strain of the attenuated (weakened) live bovine tuberculosis bacillus, Mycobacterium bovis , that has lost its virulence in humans by being specially… …   Wikipedia

  • Pfeiffer's bacillus — Pfeif·fer s bacillus fī fərz n a minute bacillus of the genus Haemophilus (H. influenzae) associated with acute respiratory infections and meningitis compare KOCH WEEKS BACILLUS …   Medical dictionary

  • pfeiffer's bacillus — ˈfīfə(r)z noun also pfeiffer s influenza bacillus Usage: usually capitalized P Etymology: after Richard F. J. Pfeiffer : a minute bacillus (Hemophilus influenzae) associated with acute respiratory infections and meningitis compare koch weeks… …   Useful english dictionary

  • Haemophilus — A genus of aerobic to facultatively anaerobic, nonmotile bacteria (family Brucellaceae) containing minute, Gram negative, rod shaped cells that sometimes form threads and are pleomorphic. These organisms are strictly parasitic, growing best, or… …   Medical dictionary

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