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a genus of gram-negative, facultatively anaerobic, nonmotile, rod-shaped bacteria containing four species that are differentiated by biochemical reactions: S. dysente´riae (subgroup A), S. flex´�neri (subgroup B), S. boy´dii (subgroup C), and S. son´nei (subgroup D). Their normal habitat is the intestinal tract of humans and higher monkeys; all species cause dysentery.
any individual organism of the genus Shigella.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A genus of nonmotile, aerobic to facultatively anaerobic bacteria (family Enterobacteriaceae) containing gram-negative nonencapsulated rods. These organisms cannot use citrate as a sole source of carbon; their growth is inhibited by potassium cyanide and their metabolism is fermentative; they ferment glucose and other carbohydrates with the production of acid but not gas; lactose is ordinarily not fermented, although it is sometimes slowly attacked; the normal habitat is the intestinal tract of humans and of higher apes; all of the species produce dysentery. The type species is Shigella dysenteriae.
Farlex Partner Medical Dictionary © Farlex 2012
n. pl. shi·gellae (-gĕl′ē) also shi·gellas
Any of various nonmotile, rod-shaped bacteria of the genus Shigella, which includes some species that cause dysentery.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
ShigellaMicrobiology A genus of gram-negative bacilli of the family Enterobacteriaceae, and major cause of bacterial dysentery
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
A genus of nonmotile, aerobic to facultatively anaerobic bacteria containing gram-negative, non-spore-forming rods. A major cause of dysentery.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Shiga,Kiyoshi, Japanese bacteriologist, 1870-1957.
Shigella boydii - a species found in feces of symptomatic individuals.
Shigella dysenteriae - a species causing dysentery in humans and in monkeys. Synonym(s): Shiga bacillus; Shiga-Kruse bacillus
Shigella flexneri - a species found in the feces of symptomatic individuals and of convalescents or carriers; the most common cause of dysentery epidemics and sometimes of infantile gastroenteritis. Synonym(s): Flexner bacillus; paradysentery bacillus
Shigella sonnei - a species causing mild dysentery and also summer diarrhea in children. Synonym(s): Sonne bacillus
Shigella - a genus of nonmotile, aerobic to facultatively anaerobic bacteria (family Enterobacteriaceae), all of whose species produce dysentery.
Shiga bacillus - Synonym(s): Shigella dysenteriae
Shiga-Kruse bacillus - Synonym(s): Shigella dysenteriae
shigellosis - bacillary dysentery caused by bacteria of the genus Shigella.
Medical Eponyms © Farlex 2012
Genus of nonmotile, aerobic to facultatively anaerobic bacteria with habitat in the intestinal tract of humans and of higher apes; all species produce dysentery.
Medical Dictionary for the Dental Professions © Farlex 2012