?:definition
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Serology reagents intended to detect immunoglobulin A (IgA) antibodies to species of Yersinia, a genus of ovoid-shaped bacteria of the family Enterobacteriaceae. Yersinia species that are pathologic to humans include Y. pestis, which causes bubonic plague; Y. enterocolitica, which causes acute gastroenteritis and mesenteric lymphadenitis; and Y. pseudotuberculosis, which causes mesenteric lymphadenitis without gastroenteritis.
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