Publications

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demonstration of serum-neutralising antibody to turkey rhinotracheitis virus in serum from chicken flocks in japan.since between 1989 and 1991, broiler, broiler breeder and layer chickens reared in three different prefectures of japan, hyogo, ibaraki, and miyazaki, were diagnosed clinically as having swollen head syndrome (shs) these flocks were survey for antibody to turkey rhinotracheitis (trt) virus using a serum neutralisation (sn) test. trt-specific sn antibody was found in flocks of chickens in 2 out of the 3 prefectures. thereafter, particular in the summers of both 1993 and 1994 outbreaks of shs occu ...19968898285
isolation of pasteurella multocida during an outbreak of infectious septicemia in japanese quail (coturnix coturnix japonica).in may 1994, about fifty japanese quails out of ninety being bred for experimental purposes at miyazaki university died of acute septicemia within a few days. at autopsy, there were no gross pathological lesions, however, severe bacteremia was observed in all cases. bacterial examination revealed the presence of pasteurella multocida in blood and several organs in pure culture and they were of carter's capsular type a, heddleston's type 3-4 and namioka's type o-8-9. the ld50 of bacteria in quail ...200111642279
pathogenicity of h5n8 highly pathogenic avian influenza viruses isolated from a wild bird fecal specimen and a chicken in japan in 2014.poultry outbreaks caused by h5n8 highly pathogenic avian influenza viruses (hpaivs) occurred in japan between december 2014 and january 2015. during the same period; h5n8 hpaivs were isolated from wild birds and the environment in japan. the hemagglutinin (ha) genes of these isolates were found to belong to clade 2.3.4.4 and three sub-groups were distinguishable within this clade. all of the japanese isolates from poultry outbreaks belonged to the same sub-group; whereas wild bird isolates belon ...201626916882
characterization of h5n1 highly pathogenic avian influenza virus isolated from a mountain hawk eagle in japan.on january 4, 2007, an emaciated mountain hawk-eagle was found in kumamoto prefecture, japan. highly pathogenic avian influenza (hpai) virus subtype h5n1 was isolated from both tracheal and cloacal swabs of the dead bird. on january 13, an outbreak of hpai, caused by h5n1 strain, occurred in a chicken farm in miyazaki prefecture. within three weeks, three additional outbreaks had occurred (two in miyazaki prefecture and one in okayama prefecture). to investigate the relationship between the hawk ...201020009423
serological studies of infectious bronchitis vaccines against japanese field isolates of homologous and heterologous genotypes.the genetic diversity of the partial s1 gene involving the hyper variable region for infectious bronchitis (ib) vaccine strains in japan were compared with those of ib virus isolated from the field in japan. field isolates have mainly been classified into three major genotypes, jp-i, jp-ii and jp-iii, since 2003; however, the 4/91 genotype was detected from recent field isolates in japan. the virus neutralization (vn) activity with vaccine immunized serum was investigated to evaluate the protect ...200919652475
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