occurrence of yersinia enterocolitica in wild animals.yersinia species were isolated from 16 of 495 small wild animals and from 1 of 38 foxes. the animals were trapped in seven regions of hokkaido, japan. of the 17 strains isolated, 9 were yersinia enterocolitica o6; 2 were y. enterocolitica o5a; 1 was y. enterocolitica, o4; 1 was y. enterocolitica o9; 1 was yersinia pseudotuberculosis ivb; and 3 were sucrose-negative strains. yersinia pestis was not isolated. the o6 organism was most prevalent in large red-back mice (clethrionomys rufocanus bedfor ...19817224628
developmental study of taenia mustelae in the intermediate and definitive hosts, with a note on the life cycle of t. mustelae in hokkaido, japan.the gray red-backed vole clethrionomys rufocanus bedfordiae and laboratory mice were fed eggs of taenia mustelae via a stomach tube. fully developed metacestodes were recovered from the voles fed the eggs at 25 days postinfection; voles were considered to be more suitable intermediate hosts for t. mustelae than laboratory mice. the prepatent period for the metacestodes from voles was shorter (16 days) in the mink than previously reported. a field survey was performed on hepatic cestodes of small ...19968885900
detection of ehrlichial dna in small rodents captured in a woodland area of hokkaido, the northernmost island of japan, where lyme disease is endemic.the ehrlichial gene was detected in small rodents trapped in a lyme disease-endemic area in hokkaido, the northernmost island of japan. primer pairs of 16s rdna targeting the genus ehrlichia and other regions of the 16s rdna specific for e. chaffeensis and e. muris were used for identification. the dna fragment specific for 16s rdna of ehrlichia spp. was detected in 4 of 94 apodemus speciosus mice (positive rate: 4.3%) and 5 of 73 clethrionomys rufocanus bedfordiae mice (positive rate: 6.8%). th ...200516249629
frenkelia sp. from the red-backed vole, clethrionomys rufocanus bedfordiae, in hokkaido, japan. 19883286944
epidemiological studies of hemorrhagic fever with renal syndrome (hfrs) related virus infection among urban rats in hokkaido, japan.seroepidemiological studies of hemorrhagic fever with renal syndrome (hfrs) virus infection were carried out among urban rats (rattus norvegicus and rattus rattus) and small field rodents in hokkaido, japan. an urban rat colony that was seropositive to sr-11 strain of hfrs virus (laboratory rat origin) was demonstrated in february 1983 at a dumping ground area of kami-iso town near hakodate port. an hfrs-related virus, named ki-262 strain, was isolated from the lung tissue of a seropositive rat ...19862871823
modes of hantavirus transmission in a population of clethrionomys rufocanus bedfordiae inferred from mitochondrial and microsatellite dna elucidate the mode of transmission of puumala-related hantavirus in a population of gray red-backed voles, clethrionomys rufocanus bedfordiae, in hokkaido, japan, we analyzed the kin structure and dispersal patterns of individual voles using microsatellite and mitochondrial dna markers. siblings or dam/offsprings was identified within the population based on the relatedness calculation with the microsatellite data. the pairwise relatedness values obtained could reveal kinship among all vole i ...200415098108
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