Isolation of <i>Yersinia enterocolitica</i> and <i>Yersinia pseudotuberculosis</i> from Swine, Cattle and Rats at an Abattoir

Zen-Yoji, Hiroshi; Sakai, Senzo; Matsumoto, Tsutomu; Yanagawa, Yoshitoki

doi:10.1111/j.1348-0421.1974.tb00753.x

Cited by 69 publications

(34 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In previous reports, Y. pseudotuberculosis has been isolated from 0,6 to 3% of fecal samples (Zen-Yoji et al, 1974;Tsubokura et al, 1976;Weber ja Knapp, 1981;Fukushima et al, 1989;Fukushima et al, 1990;Inoue, 1991;Fain-Binda, 1999). The higher occurrence in this study is possibly due to pre-selection of pig farms.…”

Section: Discussionmentioning

confidence: 93%

Yersinia pseudotuberculosis in Pigs and Pig Houses in Finland

Laukkanen

Niskanen

Fredriksson-Ahomaa

et al. 2004

Advances in Experimental Medicine and Biology

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 93%

Yersinia pseudotuberculosis in Pigs and Pig Houses in Finland

Laukkanen

Niskanen

Fredriksson-Ahomaa

et al. 2004

Advances in Experimental Medicine and Biology

View full text Add to dashboard Cite

“…Previously, the authors pointed out the importance of swine as the carrier of certain O-groups of Y. enterocolitica, such as O-groups 3 and 5B being responsible for human infections, and suggested the role of raw pork as a vehicle for the organisms (14). Depending upon the results obtained in the present survey, dogs and cats are also regarded as possible sources of the human infections due to Y. enterocolitica.…”

mentioning

confidence: 82%

“…In most of the sporadic cases or outbreaks, however, the source and the route of the infection remained unknown, since ecology of the organism has not yet been understood clearly.The authors studied previously the distribution of Y. enterocolitica in healthy humans, livestock, foodstaff and the natural environment (14,15). Through these investigations, it was found that Y. enterocolitica was isolated from swine and rats at a high rate, and over 70% of the isolates were of the same serovars as those from human cases.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Isolation of Yersinia enterocolitica and Yersinia pseudotuberculosis from Apparently Healthy Dogs and Cats

Yanagawa

Matsumoto

Sakai

1978

Microbiology and Immunology

Self Cite

View full text Add to dashboard Cite

Recently, a number of cases of human infections due to Yersinia enterocolitica have been reported in many countries, and much attention has been given to the organism as one of the important etiologic agents of enteritis, appendicitis, septicemia, arthritis and others (12). In most of the sporadic cases or outbreaks, however, the source and the route of the infection remained unknown, since ecology of the organism has not yet been understood clearly.The authors studied previously the distribution of Y. enterocolitica in healthy humans, livestock, foodstaff and the natural environment (14,15). Through these investigations, it was found that Y. enterocolitica was isolated from swine and rats at a high rate, and over 70% of the isolates were of the same serovars as those from human cases. These findings suggested the importance of swine as one of the infective sources for humans.In the present survey, distribution of Y. enterocolitica in dogs and cats, which have close relations to humans as pet animals, was investigated to obtain more extensive ecological informations of the organism. These animals were also examined for the presence of Y. pseudotuberculosis. A total of 704 stray or unwanted adult dogs and 373 unwanted adult cats obtained from the Tokyo Metropolitan Dog Pound Office were submitted to the survey. The dogs were examined between October 1974 and September 1976, and the cats between June 1975 and September 1976.Autopsies were made immediately after the sacrifice, and about 1 g each of the ileo-cecal contents, rectal contents and mesenteric lymph node was sampled. The content to be tested was suspended into 5 ml of sterile saline, and the mesentric lymph node was homogenized with 10 ml of sterile saline. A loopful of each specimen thus prepared was directly plated on both SS and MacConkey agar plates, and incubated at 25 C for 48 hr. Enrichment cultures were also made by inoculating 1 ml of each specimen into 20 ml of 1/15 M phosphate buffer solution (pH 7.6), and incubated at 4 C for 21 days. After the cold enrichment, a loopful of each culture was spread on the agar plates, and incubated at 25 C for 48 hr. Suspicious colonies grown on the agar plates were identified by the method described previously (14). The biovars of Y. enterocolitica were determined according to the scheme and method described by Wauters (11) .Summarized results are shown in Table 1. Y. enterocolitica was isolated from 42 643

show abstract

“…Human yersiniosis has generally occurred more frequently during the cold seasons (Arvastoson et al 1971, Winblad 1973, Fukushima et al 1987. Isolation of these organisms in pigs is also more frequent during cold seasons (Zen-Yoji et al 1974, Tsubokura et al 1976, Weber & Knapp 1981. Fukushima et al (1984) reported that the seasonal incidence of isolation of Yersinia spp.…”

Section: Discussionmentioning

confidence: 99%