Yersinia /Yer·sin·ia/ (yer-sin´e-ah) a genus of nonmotile, ovoid or rod-shaped, nonencapsulated, gram-negative bacteria (family Enterobacteriaceae); Y. enterocoli´tica is a ubiquitous species that causes acute gastroenteritis and mesenteric lymphadenitis in children and arthritis, septicemia, and erythema nodosum in adults; Y. pes´tis causes plague in humans and rodents, transmitted from rats to humans by the rat flea, and from person to person by the human body louse; Y. pseudotuberculo´sis causes disease in rodents and mesenteric lymphadenitis in humans.
Yersinia
Yersinia [yer-sin´e-ah]
Yersinia
| Yersinia n. A genus of gram-negative parasitic bacteria of the family Enterobacteriaceae that cause various diseases in humans and animals. |
yer·sin·i·a (y r-s n  -)n. A bacterium of the genus Yersinia. |
Yersinia
[yersin′ē·ə]
Etymology: Alexandre E.J. Yersin, French bacteriologist, 1862-1943
a genus of nonmotile ovoid or rod-shaped gram-negative bacteria of the Enterobacteriaceae family.
Yersinia [yer-sin´e-ah]
a genus of nonmotile, ovoid or rod-shaped, nonencapsulated, gram-negative bacteria (family Enterobacteriaceae). Y. pes´tis causes plague in humans and rodents; it is transmitted from rat to rat and from rat to human by the rat flea, and between humans by the human body louse. Y. enterocoli´tica causes acute gastroenteritis and mesenteric lymphadenitis, especially in young children, and arthritis, septicemia, and erythema nodosum in adults. Y. pseudotuberculo´sis causes disease in rodents and mesenteric lymphadenitis in humans.
Yersinia
a genus of ovoid or rod-shaped, nonencapsulated, gram-negative bacteria in the family Enterobacteriaceae.
Yersinia enterocolitica
often carried by many animal species, especially pigs, and associated with sporadic diarrhea in humans and animals. Farmed deer are highly susceptible.
Yersinia pestis
causes bubonic plague in humans and sylvatic plague in rodents and cats.
Yersinia pseudotuberculosis
causes yersiniosis in laboratory animals, wild rodents and domestic species, including cattle, sheep and cats. See also pyemic hepatitis.
Yersinia ruckeri
causes enteric redmouth and salmonid blood spot disease especially of Atlantic salmon fry and parr.
Yersinia tularensis
see francisellatularensis.
Yersinia
A genus of pathogenic gram-negative, facultatively anaerobic, coccobacillary bacteria, which cause bubonic plague–Y pestis, intestinal infections–Y enterocolitica, mesenteric lymphadenitis–Y
pseudotuberculosis, which mimics appendicitis
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