Publications

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distribution of the antibody to influenza c virus in dogs and pigs in yamagata prefecture, japan.the distribution of the antibody to influenza c virus in the dogs and pigs in yamagata prefecture, japan was investigated by using three different serological methods: hemagglutination-inhibition (hi), radioimmunoprecipitation (rip), and immunoblotting. the antibody against influenza c virus glycoprotein (gp88) was detected in 5 out of 112 sera collected from mongrel dogs, three by rip test and two by any of the three methods, suggesting that the virus can cause natural infection in dogs. signif ...19872836710
the genotype of aujeszky's disease viruses isolated in argentina.genomes of four argentine isolates of aujeszky's disease virus (adv) (rio cuarto/79, mercedes, chanar ladeado-7 and chanar ladeado-15) from pigs were characterized and compared with four adv strains obtained from u.s.a. (indiana-s), sweden (sweden 66), france (alfort) and japan (yamagata-s81) by restriction endonuclease (re) analysis. although three argentine isolates were classified into type i of bamhi cleavage pattern, one isolate, mercedes, belonged to type ii, according to the classificatio ...19947865606
cocirculation of two distinct groups of influenza c virus in yamagata city, japan.the antigenic and genetic relationships among 15 strains of influenza c virus isolated between august, 1988, and may, 1990, in yamagata city, japan, were investigated. based on the results of antigenic analysis with monoclonal antibodies to the hemagglutinin-esterase (he) glycoproteins and oligonucleotide mapping of total vrna, the isolates were divided into two distinct groups closely related to either c/yamagata/26/81 or c/aichi/1/81. antigenic differences between two groups could be detected ...19948030242
antigenic and genetic characterization of influenza c viruses which caused two outbreaks in yamagata city, japan, in 1996 and 1998.during the 3 years from january 1996 to december 1998, a total of 33 strains of influenza c virus were isolated from 10,726 throat swab specimens collected from children with acute respiratory illness who visited two pediatric clinics in yamagata city, japan. these 33 strains were isolated in clusters during two different periods, 20 strains in may to august 1996 and the remaining 13 in march to june 1998. antigenic analysis with monoclonal antibodies to the hemagglutinin-esterase (he) glycoprot ...200211825952
survey of porcine proliferative enteritis in the tohoku district of japan.a survey of proliferative enteritis (pe) in pigs at a meat processing plant was conducted using polymerase chain reaction (pcr) testing methods. during the investigation period, 227 of 83,717 pigs brought to the meat processing plant from iwate, fukushima, miyagi, niigata, and yamagata prefectures displayed characteristic general pathological features in terminal ileum, including mucosal hypertrophy and reticulation of serosal surface. of these, 179 cases were further examined in the laboratory. ...200415187367
cross-antigenicity among ev71 strains from different genogroups isolated in yamagata, japan, between 1990 and 2007.we isolated and identified six subgenogroups (b2, b4, b5, c1, c2, and c4) of enterovirus 71 (ev71) between 1990 and 2007 in yamagata, japan. we measured neutralizing antibody (nt ab) titers against those subgenogroup strains and the brcr reference strain for antigenic analysis. serological analysis of 83 residents in yamagata in 2004 showed that differences in the nt ab titer of each individual against the different subgenogroups were mostly within 4-fold. furthermore, sera from guinea pigs, imm ...200919446185
reproductive losses associated with porcine circovirus type 2 in a japanese herd of seronegative sows.from april to july 2009, there was a high rate of reproductive losses in a 30-sow, farrow-to-finish swine herd in yamagata prefecture, japan. histopathological examinations of heart tissue from stillborn and preweaning piglets showed nonsuppurative, necrotizing lesions. immunohistochemical staining and polymerase chain reaction analysis of myocardial lesions revealed the presence of porcine circovirus type 2 (pcv2) antigens and dna in these tissues. indirect immunofluorescence also showed that t ...201121358147
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