Using a monospecific rabbit antibody against Yersinia enterocolitica outer membrane protein 1, we examined synovial biopsy specimens from 7 patients with Yersinia-induced arthritis. Yersinia were demonstrated in the synovial membrane by indirect immunofluorescence in 4 patients with Yersinia-induced arthritis, but not in 6 control patients with Salmonella-induced arthritis or with rheumatoid arthritis. These findings suggest the persistence of Yersinia in the joints of patients with Yersinia-induced arthritis.
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Hammer et al. (1990) studied this question.
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