Publications

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[serological epidemiology of japanese encephalitis virus infections in ishigaki and iriomote islands, okinawa]. 19846086783
[antimicrobial susceptibility and resistance genes among salmonella enterica serovar weltevreden isolates from humans, farm animals, and the environment in okinawa prefecture between 1992 and 2007].between 1992 and 2007, a total of 86 isolates of salmonella enterica weltevreden were obtained from clinical human samples (n = 41), 45 farm animals and their environment on 20 farms, including poultry (n = 25), beef cattle (n = 5), swine (n = 5), dairy cattle (n = 3), mice (n = 2), pony (n = 1), fly (n = 1) and feed samples (n = 3), in okinawa prefecture, japan. only seven isolates (8.1%) of the isolates were resistance to one or more antimicrobial agents tested; six streptomycin (7.0%), six ox ...201020170010
anaplasma marginale infection in a japanese black cow 13 years after eradication of rhipicephalus (boophilus) microplus in okinawa, japan.in october 2007, a 15-year-old japanese black cow on ishigaki island, okinawa, japan, was diagnosed with anaplasma marginale infection based on clinical symptoms, blood examination, smear observation, 16s rrna and groel gene sequence analysis, and the result of a cf test. the cow was introduced into the farm from mainland japan as a calf in 1993, one year before the eradication of rhipicephalus (boophilus) microplus, the main vector of a. marginale in okinawa prefecture. it is possible that the ...200919135309
genetic analysis of akabane virus isolates from cattle in korea.bayesian inference (bi) and neighbor joining (nj) analyses of the phylogenetic relationships between the nucleotide sequences of the n gene of akabane virus revealed an unclear topology among genogroups i-iii, which was probably caused by genetic reassortment or recombination between these genogroups. in contrast, nucleotide and amino acid phylogenetic tree analyses of the m rna segment agreed with the topologies obtained by using the bi and nj methods. therefore, distinct genogrouping of akaban ...201019733454
escherichia coli o157:h7 infections associated with ground beef from a u.s. military installation--okinawa, japan, february 2004.in february 2004, the okinawa prefectural chubu health center (ochc) and the okinawa prefectural institute of health and environment (oihe), japan, investigated three cases of escherichia coli o157:h7 infection in a japanese family associated with eating ground beef. public health officials from multiple agencies in japan and the united states collaborated on this investigation, which resulted in a voluntary recall of approximately 90,000 pounds of frozen ground beef in the united states and at ...200515660018
genotypic diversity of theileria orientalis detected from cattle grazing in kumamoto and okinawa prefectures of japan.theileria orientalis is a benign protozoan species that is widely distributed in japan, yet sometimes causes serious economic losses in the livestock industry. in this study, we conducted a molecular survey based on genes encoding the major piroplasm surface protein (mpsp) and p23 for t. orientalis detected in cattle grazing in southern areas of japan, consisting of 2 farms in kumamoto prefecture (aso and kuma districts) and 3 farms in okinawa prefecture (ishigaki, iriomote, and yonaguni islands ...201020978366
detection of anaplasma bovis and anaplasma phagocytophilum from cattle on yonaguni island, okinawa, japan.dna fragments of anaplasma bovis and anaplasma phagocytophilum were detected in cattle on yonaguni island, okinawa, japan. although the pathogenesis and epidemiology of these pathogens have not yet been clarified, this is the first detection of their presence in cattle from japan.200818468796
epidemiological survey of theileria orientalis infection in grazing cattle in the eastern part of hokkaido, japan.theileria orientalis is one of the benign species of theileria that is widely distributed in japan and is sometimes responsible for serious economic losses in the livestock industry. in the present study, we surveyed the current status of t. orientalis infection in grazing cattle in the eastern areas of hokkaido (taiki, otofuke, shintoku, and shin-hidaka districts) using molecular methods, as well as traditional methods, of diagnosis. the genes encoding the major piroplasm surface protein (mpsp) ...200919652482
distribution of antibody against erysipelothrix rhusiopathiae in cattle.serum samples collected from 854 cattle in nine prefectures of japan, from hokkaido to okinawa, between 1988 and 1992 were examined for presence of antibodies against erysipelothrix rhusiopathiae by growth agglutination test. most of the sera showed positive reactions, and the antibody titers ranged from below 4 to above 128. seventy-six percent of the sera showed titers of 32 or above, and 34% showed titers of 128 or above. the titers had a tendency to be higher in the south and lower in the no ...200111329469
genetic heterogeneity of porcine and ruminant pestiviruses mainly isolated in japan.the genetic variability of porcine and ruminant pestiviruses was studied by comparative nucleotide sequence analysis of 73 isolates (42 porcine and 31 ruminant), including 65 japanese isolates (35 porcine and 30 ruminant). the 5'-untranslated region (utr) amplified by reverse transcriptase-polymerase chain reaction (rt-pcr) was determined by direct sequencing and phylogenetic analysis was performed from the nucleotide sequence data. most porcine isolates were divided into two major subgroups, cl ...199910068129
comparison of allergic diseases and specific ige antibodies in different parts of japan.we investigated the differences of allergic diseases and specific ige antibodies to inhaled or ingested allergens between two cities in a japanese pediatric population. one of the two cities is itoman, which is a subtropical city in okinawa prefecture; the other is gifu, which is a temperate zone city in gifu prefecture. the prevalence of asthma or wheezy bronchitis was significantly higher in itoman; however, the prevalence of atopic dermatitis was significantly higher in gifu. furthermore, the ...19948179232
seroepizootiological survey on bluetongue virus infection in cattle in japan.bovine sera collected in various parts of japan were subjected to seroepizootiological tests with bluetongue virus type 1 (btv1), type 12 (btv12), and type 20 (btv20). all these viruses have been widely disseminated among cattle in the southern part of japan in 1974. relatively high incidences of neutralizing (nt) antibody against the three viruses were shown among cattle in the kyushu district, including okinawa prefecture, or the southern part of japan, but extremely low or incidences in hokka ...19826312332
[the epidemiological study on hepatitis b virus infection in miyako district--relationship to the mass survey of filariasis].it has been well known that the transmission of hb virus is associated with mass inoculation and other medical procedures. in order to make clear the relation between hbv infection and the mass survey for filariasis on which sera of the examinees were drawn from their earlobes for the detecting of microfilaria with inadequately sterilized instruments, a epidemiological study was conducted in miyako district. okinawa prefecture, japan, in which both hbv infection and filariasis were prevalent. a ...19902230366
detection of culicoides brevitarsis activity in kyushu.culicoides brevitarsis transmits important ruminant arboviruses, such as akabane, aino and bluetongue viruses. the presence of this species has so far been recognized primarily in okinawa, the southernmost prefecture of japan. in entomological surveys in 2008 and 2009, c. brevitarsis was collected at 8 sites throughout nagasaki, kumamoto and kagoshima prefectures. the collection sites are all located near pastures, where the larvae of c. brevitarsis can grow in cattle dung left in the field. c. ...201121799296
genetic diversity of benign theileria parasites of cattle in the okinawa prefecture.benign theileria parasites of cattle distributed in the okinawa prefecture were characterized by allele-specific polymerase chain reaction (pcr) and dna sequence analysis of the major piroplasm surface protein (mpsp) gene. using universal or allele-specific primer sets, parasite dna was amplified in 31 out of 48 blood samples obtained from beef cattle. among the positive cases, mixed infections involving various combinations of i-, c-, and b-type parasites were detected in 24 (77.4%) samples. ph ...200617213704
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