Yersinia


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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

(yer-sin'ē-ă),
A genus of motile and nonmotile, non-spore-forming bacteria (family Enterobacteriaceae) containing gram-negative, unencapsulated, ovoid to rod-shaped cells; Yersinia are nonmotile at 37°C, but some species are motile at temperatures below 30°C; motile cells are peritrichous; citrate is not used as a sole source of carbon; these organisms are parasitic on humans and other animals; the type species is Yersinia pestis.
[A. J. E. Yersin, Swiss bacteriologist, 1862-1943]

yersinia

(yər-sĭn′ē-ə)
n. pl. yersin·iae (-ē-ē′)
A gram-negative bacterium of the genus Yersinia that causes various diseases in animals and humans, including plague.

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

Yer·sin·i·a

(yĕr-sin'ē-ă)
A genus of motile and nonmotile, non-spore-forming bacteria containing gram-negative, unencapsulated, ovoid to rod-shaped cells. These organisms are parasitic on humans and other animals. The type species is Yersinia pestis.
[A. J. E. Yersin, Swiss bacteriologist, 1862-1943]

Yersinia

A genus of GRAM NEGATIVE rod-shaped organisms that includes the bacillus Y. pestis responsible for PLAGUE. Formerly classified as Pasteurella , Yersinia have been reclassified as Enterobacteriaceae and the genus renamed. Louis Pasteur, although nominal head of the Institute, was not entitled to the credit or the discovery of the plague bacillus. (Alexandre Émile Jean Yersin, 1862–1943, French bacteriologist, working in Hong Kong.)

Yer·sin·i·a

(yĕr-sin'ē-ă)
Genus of motile and nonmotile, non-spore-forming bacteria containing gram-negative, unencapsulated, ovoid to rod-shaped cells; parasitic on humans and other animals; type species is Y. pestis.
[A. J. E. Yersin, Swiss bacteriologist, 1862-1943]
References in periodicals archive ?
From the results of studies on 790 samples of food products and environmental objects, the following 677 cultures were isolated and identified: 315 (46.5%), Salmonella; 159 (23.4%), Escherichia; 48 (7.1%), Listeria; 5(0.8%), Yersinia; 12 (1.8%), Campylobacter; and 138 (20.3%), Staphylococcus.
Retrospective data analysis of faecal bacterial culture results reported by Aotea Pathology in a three month period (1/12/13- 28/2/14) showed that only 3.5% of all possible Yersinia spp.
A foodborne pathogen associated with undercooked pork, Yersinia enterocolitica is a gram-negative coccobacillus causing appendicitis, ileitis, colitis, and mesenteric lymphadenitis (l).
The detection frequencies of STEC, Salmonella serotypes, and Yersinia species in 453 samples are shown in Table 2.
The following strains were used as positive and negative controls for biochemical and PCR tests: Yersinia enterocolitica O:3 biotype 4 (MyO--SW/897/63), Y enterocolitica O:8 biotype 1B (P311--WF--Albany, USA), Y enterocolitica O:9 biotype 2 (My79--Nilhen, Sweden), Y.
Yersinia pestis hasn't disappeared, but the bacterium no longer thrives in the socio-economic petri dish that was medieval Europe and is treatable with modern health care.
Yersinia ruckeri se transmite de manera horizontal es decir a traves del agua, por las deyecciones de los peces infectados o portadores al pez susceptible (Rodger 1991).
The structural biologist has already done research in Yersinia as a PhD student at the Helmholtz Centre for Infection Research in Braunschweig.
* La cepa movil de Yersinia ruckeri procedente de Huaraz, Peru, es altamente patogena, produciendo mortalidad y diversas lesiones en tejidos de truchas arcoiris (Oncorhynchus mykiss) en condiciones experimentales.
Although the initial gram stain was negative for Yersinia, clinical suspicion pointed to a diagnosis of bubonic plague.
Yersinia was presumptively identified by their readily growth, phenotypic characteristics and growth at low temperature (25[degrees]C) on nutrient agar or blood agar media.
Differential plague-transmission dynamics determine Yersinia pestis population genetic structure on local, regional, and global scales.