incidence of yersinia spp. in food in sao paulo, brazil.this study examined the occurrence of y. enterocolitica and other yersinia species in brazilian food products. samples included raw vegetables (lettuce, spinach, watercress and chicory), raw and pasteurized milk as well as meat and meat products. raw milk samples were obtained in a dairy plant and the other food samples were purchased at the retail level in sao paulo city. yersinia spp. was isolated from raw milk (45.2%), pasteurized milk (14.3%), raw vegetables samples (13.3%) and meat and meat ...19948024978
characterization of yersinia enterocolitica biotype 1a strains isolated from swine slaughterhouses and markets.yersinia enterocolitica is an important foodborne pathogen that causes illness in humans and animals. y. enterocolitica is also the most heterogeneous species of the genus and is divided into distinct serotypes and over six biotypes. y. enterocolitica biotype 1a strains are classically considered as nonpathogenic; however, some biotype 1a isolates have been considered as causative of gastrointestinal disease, yielding symptoms indistinguishable from those produced by pathogenic biotypes. even af ...201323476146
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