Publications

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a survey on salmonella in rectal swabs of cattle on dairy farms and steer feed lots in hokkaido. 19734546537
a survey of salmonella enteritidis in spent hens and its relation to farming style in hokkaido, japan.in order to estimate the distribution of salmonella including salmonella enteritidis (se) and se-antibodies in commercial layer hen flocks in hokkaido, the northern prefecture of japan, a survey of spent layer hens was performed, from august 1996 to january 1997. from the three spent hen processing plants, samples of intestines and sera were collected from 740 birds presented for slaughter from 37 flocks of 22 layer hen farms. intestines from each birds were cultured for salmonella including sal ...19979506274
salmonella enterica serotype typhimurium infection causing mortality in eurasian tree sparrows (passer montanus) in hokkaido. 200818362416
antimicrobial resistance and genetic characteristics of salmonella typhimurium isolated from horses in hokkaido, japan.in this study, we examined the antimicrobial susceptibility of 16 salmonella typhimurium isolates obtained from horses, and applied several genetic methods, namely polymerase chain reaction (pcr) for detecting class 1 integrons, multiplex pcr for detecting multidrug resistant s. typhimurium definitive phage type 104 (mr-dt104), and fluorescent amplified-fragment length polymorphism (faflp). seven isolates with an ampicillin, chloramphenicol, streptomycin, sulfonamide, and tetracycline (acssut) t ...200919721370
molecular epidemiology of salmonella enterica serovar typhimurium isolates from cattle in hokkaido, japan: evidence of clonal replacement and characterization of the disseminated clone.the molecular epidemiology of 545 salmonella enterica serovar typhimurium isolates collected between 1977 and 2009 from cattle in hokkaido, japan, was investigated using pulsed-field gel electrophoresis (pfge). nine main clusters were identified from 116 pfge patterns. cluster i comprised 248 isolates, 243 of which possessed a sequence specific to definitive phage type 104 (dt104) or u302. the cluster i isolates were dominant in 1993 to 2003, but their numbers declined beginning in 2004. beginni ...201121239560
isolation and characterization of listeria monocytogenes from commercial asazuke (japanese light pickles).asazuke is a ready-to-eat japanese light pickle, mainly made of vegetables which are known to be one of the sources of listeria monocytogenes contamination. although asazuke is a popular side-dish in japan, the hazard of bacterial contamination has not been evaluated yet. in this study, we investigated the prevalence of l. monocytogenes, salmonella spp., verotoxigenic e. coli (vtec) and coliforms in 108 asazuke samples that randomly collected from supermarkets in obihiro (hokkaido prefecture, ja ...201020388574
cyp1a1 inducing potential of airborne particulate extracts collected during a 25-year period (1975-2000).samples of airborne particles from sapporo, the capital of hokkaido, japan, were collected between 1975 and 2000. major polycyclic aromatic hydrocarbons (pahs) included in the extracts of airborne particles were investigated for their mutagenicity and potential for inducing drug-metabolizing enzyme cytochrome p450 (cyp)1a1, which is considered to be responsible for the activation of pahs in airborne particle extracts, as well as in cigarette smoke, to carcinogens and is associated with risk of s ...200516101325
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