| comma bacillus | <bacteria> Bacterium that causes cholera, the life threatening aspects of which are caused by the exotoxin (see cholera toxin). Short, slightly curved rods, highly motile (single polar flagellum), gram-negative. Adhere to intestinal epithelium (adhesion mechanism unknown) and produce enzymes (neuraminidase, proteases) that facilitate access of the bacterium to the epithelial surface. (18 Nov 1997) |
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| comma bundle of Schultze | A compact bundle composed of descending branches of posterior root fibres located near the border between the fasciculi gracilis and cuneatus of the cervical and thoracic spinal cord; it corresponds to the septomarginal fasciculus, Hoche's tract, or oval area of Flechsig in the lumbar, and to the triangle of Philippe-Gombault in the sacral spinal segments; like these, it can be demonstrated only in cases of demyelination resulting from dorsal root lesions. Synonym: fasciculus semilunaris, fasciculus interfascicularis, comma bundle of Schultze, comma tract of Schultze, interfascicular fasciculus. (05 Mar 2000) |
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| comma tract of Schultze | A compact bundle composed of descending branches of posterior root fibres located near the border between the fasciculi gracilis and cuneatus of the cervical and thoracic spinal cord; it corresponds to the septomarginal fasciculus, Hoche's tract, or oval area of Flechsig in the lumbar, and to the triangle of Philippe-Gombault in the sacral spinal segments; like these, it can be demonstrated only in cases of demyelination resulting from dorsal root lesions. Synonym: fasciculus semilunaris, fasciculus interfascicularis, comma bundle of Schultze, comma tract of Schultze, interfascicular fasciculus. (05 Mar 2000) |
| Abel's bacillus | Klebsiella pneumoniae subsp. Ozaenae See: Klebsiella ozaenae. (05 Mar 2000) |
| abortus bacillus | A species of the genus brucella whose natural hosts are cattle and other bovidae. Other mammals, including man, may be infected. Abortion and placentitis are frequently produced in the pregnant animal. (12 Dec 1998) |
| acne bacillus | A bacteria isolated from normal skin, intestinal contents, wounds, blood, pus, and soft tissue abscesses. It is a common contaminant of clinical specimens, presumably from the skin of patients or attendants. (12 Dec 1998) |
| bacillus | <bacteria> A genus of bacteria of the family Bacillaceae, including large aerobic or facultatively anaerobic, spore forming, rod shaped cells, the great majority of which are gram-positive and motile. The genus is separated into 48 species, of which three are pathogenic or potentially pathogenic and the remainder are saprophytic soil forms. Many organisms historically called Bacillus are now classified in other genera. (18 Nov 1997) |
| Bacillus amyloliquefaciens | A highly amylolytic species of soil bacteria that produces subtilisin. (05 Mar 2000) |
| bacillus amyloliquifaciens | <bacteria> Bacillus amyloliquifaciens is a Gram-positive, rod-shaped bacterium used to produce alpha-amylase and serine protease. (09 Oct 1997) |
| bacillus anthracis | A species of bacteria that causes anthrax in humans and animals. (12 Dec 1998) |
| Bacillus anthracis toxin | A culture filtrate of Bacillus anthracis containing an exotoxin with at least three different antigenically distinct components: oedema factor, lethal factor, and protective antigen. Synonym: Bacillus anthracis toxin. (05 Mar 2000) |
| Bacillus brevis | A species found in soil, air, dust, milk, and cheese; some strains produce the antibiotic gramicidin or tyrocidin. (05 Mar 2000) |
| bacillus Calmette-Guerin vaccine | <drug> Live attenuated vaccine for tuberculosis. For groups and health care workers in high endemic areas. Not to be given to individuals with HIV infection. (15 Nov 1997) |
| bacillus cereus | A species of rod-shaped bacteria that is a common soil saprophyte. Its spores are widespread and multiplication has been observed chiefly in foods. Contamination may lead to food poisoning. (12 Dec 1998) |
| Bacillus haemolyticus | The former name for Clostridium haemolyticum. (05 Mar 2000) |
| Bacillus histolyticus | The former name for Clostridium histolyticum. (05 Mar 2000) |