Recovery of Yersinia enterocolitica from streams and lakes of California

Abstract

Stream and lake water from the Mammoth Lakes region of California was sampled for Yersinia enterocolitica. From 10 of the 34 sites examined, organisms were isolated that were biochemically identified as Y. enterocolitica. Only one of the ten strains could be serologically confirmed. This strain was identified as Y. enterocolitica serotype 16. Although an outbreak of enteritis in the area prompted this study, no correlation with gastrointestinal disease could be established since the majority of the strains were untypeable.

A note onYersinia enterocoliticain a swine farm watershed

“…Strains of Y . enterocolitica isolated from the natural environment have tended to be indole variable and biochemically atypical (Lassen 1972;Toma 1973;Harvey et a/. 1976;Kapperud 1977;Saari & Jansen 1979;Ursing et al 1980).…”

“…Swine and dogs have been implicated as natural reservoirs of Yersinia enterocolitica (Gutman et al 1973; Toma & Deidrick 1975;Wilson et al 1976; Schiemann & Fleming 1981), but they have not been linked to human infection (Schiemann & Fleming 1981). Drinking water contaminated with the organism has been suspected in several human infections (Lassen 1972;Keet 1974), and aquatic isolates are indeed frequent (Botzler et al 1976; Harvey et al 1976;Brenner et al 1980; Ursing et ul. 1980; Bartley e f al.…”

Isolation of Yersinia enterocolitica‐resembling Organisms and Alteromonas putrefaciens from Vacuum‐Packed Chilled Beef Cuts

“…Yersinia enterocolitica strains of unknown pathogenicity appear to be widely distributed in low numbers in fresh water (Harvey et al 1976;Highsmith et al 1977) and in foods such as milk (Schiemann & Toma 1978) and meat, which can be contaminated indirectly from environmental sources. In an investigation of possible sources at the meat works where the striploins were obtained, Y. enterocolitica was isolated from beef intestines, hides, carcasses and from some processing equipment (unpublished).…”

Yersinia enterocolitica, Yersinia frederiksenii and Yersinia intermedia in Cyprinus carpio (Linneo 1758)

“…Having in mind that fish are important in the ecology of these microorganisms (7,14,18) and that they become eventual and potential sources of infection for man and animals, it was considered of interest to investigate the presence of Y. enterocolitica and relatedspecies in Cyprinus curpio, a carp commonly found in the river Valdivia.…”