Martins, CHGBauab, Taís Maria [UNESP]Falcao, D. P.2014-05-202014-05-201998-10-01Journal of Applied Microbiology. Oxford: Blackwell Science Ltd, v. 85, n. 4, p. 703-707, 1998.1364-5072http://hdl.handle.net/11449/33138Strains (105) of Yersinia pseudotuberculosis isolated in Brazil between 1982 and 1990 mere bio-serotyped. They were also studied for plasmid profile, autoagglutination and calcium dependence at 37 degrees C, Congo red uptake, pyrazinamidase activity, esculin hydrolysis, salicin fermentation and drug sensitivity: 95.24% were biotype 2, serogroup O:3; 2.86% were biotype 1, serogroup O:1; and 1.90% were biotype 2, non-agglutinable. Plasmids were found in 77.14% of the strains (one in each strain). There was total correlation between the presence of the virulence plasmid and autoagglutination, calcium dependence at 37 degrees C and Congo red uptake. The esculin, salicin and pyrazinamidase tests were not efficient in differentiating pathogenic from non-pathogenic Y, pseudotuberculosis isolates. All strains were highly sensitive to the drugs used. These results indicate that Y. pseudotuberculosis is a potential pathogen for humans in Brazil, especially because the bio-serogroups detected among animals are those most frequently associated with human diseases.703-707engArtigo10.1111/j.1365-2672.1998.00579.xWOS:000076939700008Acesso abertoWOS000076939700008.pdf4910754838277580