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Yersinia enterocolitica is a Gram-negative, rod-shaped bacterium, belonging to the family Yersiniaceae. It is motile at temperatures of 22–29° C (72–84 °F ), but becomes nonmotile at normal human body temperature .
Yersiniosis is an infectious disease of the gastrointestinal tract caused by bacteria of the genus Yersinia other than Y. pestis. Most cases of yersiniosis in humans are caused by Y. enterocolitica, with a small minority being caused by Y. pseudotuberculosis. Rarely, other species of the genus can cause yersiniosis. [1]
YadA is found in three pathogenic species of Yersinia, Y. pestis, Y. pseudotuberculosis, and Y. enterocolitica. The YadA domain is encoded for by a virulence plasmid in Yersinia, which encodes a type-III secretion (T3S) system consisting of the Ysc injectisome and the Yop effectors. [1]
Yersinia is a genus of bacteria in the family Yersiniaceae. [1] Yersinia species are Gram-negative, coccobacilli bacteria, a few micrometers long and fractions of a micrometer in diameter, and are facultative anaerobes. [2] Some members of Yersinia are pathogenic in humans; in particular, Y. pestis is the causative agent of the plague.
YopH from Yersinia sp. is essential for pathogenesis, as it allows the bacteria to resist phagocytosis by host macrophages through its ability to dephosphorylate host proteins, thereby interfering with the host signalling process. Yersinia has one of the most active PTP enzymes known.
In animals, Y. pseudotuberculosis can cause tuberculosis-like symptoms, including localized tissue necrosis and granulomas in the spleen, liver, and lymph nodes. In humans, symptoms of Far East scarlet-like fever are similar to those of infection with Yersinia enterocolitica (fever and right-sided abdominal pain), except that the diarrheal component is often absent, which sometimes makes the ...
Yersinia aldovae is a species of bacteria that was originally described as Group X2 Yersinia enterocolitica. [1] Its type strain is CNY 6005 (= CDC 669-83 = ATCC 35236). Y. aldovae has been isolated from aquatic environments and soil, but it has not been associated with animal or human illnesses.
Yersinia enterocolitica is a gram-negative bacillus-shaped bacterium that gives rise to yersiniosis, a zoonotic disease. This infection presents as acute diarrhea, mesenteric adenitis, terminal ileitis, and pseudoappendicitis, occasionally progressing to sepsis.