Research Topics
| Katsumi MizutaSummaryAffiliation: Yamagata Prefectural Institute of Public Health Country: Japan Publications
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Detail Information
Publications
Epidemiology of parainfluenza virus types 1, 2 and 3 infections based on virus isolation between 2002 and 2011 in Yamagata, JapanKatsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Yamagata 990 0031, Japan
Microbiol Immunol 56:855-8. 2012..Although no reliable techniques for the laboratory diagnosis of these infections have been established, the present results suggest that HPIV1-3 are an important causative agent of ARIs in children...
A two-year survey of the oseltamivir-resistant influenza A(H1N1) virus in Yamagata, Japan and the clinical effectiveness of oseltamivir and zanamivirYoko Matsuzaki
Course of Clinical Nursing, Yamagata University Faculty of Medicine, Yamagata 990 9585, Japan
Virol J 7:53. 2010....- Endemicity of human metapneumovirus subgenogroups A2 and B2 in Yamagata, Japan, between 2004 and 2009Katsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Japan
Microbiol Immunol 54:634-8. 2010..9%), followed by B2 (108/280; 38.6%) and B1 (19/280; 6.8%). Our results suggested that A2 and B2 have been endemically in circulation as the major types almost every year, whereas other subgenogroups have appeared less frequently... - Cross-antigenicity among EV71 strains from different genogroups isolated in Yamagata, Japan, between 1990 and 2007K Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi 1 6 6, Yamagata, 990 0031, Japan
Vaccine 27:3153-8. 2009..Our results also suggest that eliciting neutralizing antibodies against one genotype is likely to confer cross-neutralization against other genotypes... - Stability of the seven hexon hypervariable region sequences of adenovirus types 1-6 isolated in Yamagata, Japan between 1988 and 2007Katsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi 1 6 6, Yamagata 990 0031, Japan
Virus Res 140:32-9. 2009.... 
Analysis of monthly isolation of respiratory viruses from children by cell culture using a microplate method: a two-year study from 2004 to 2005 in yamagata, JapanKatsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata 990 0031, Japan
Jpn J Infect Dis 61:196-201. 2008..In conclusion, we verified that the modified microplate method was able to clarify the etiology and epidemiology of numerous viruses isolated from children with ARI...- A rare appearance of influenza A(H1N2) as a reassortant in a community such as Yamagata where A(H1N1) and A(H3N2) co-circulateKatsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Yamagata 990 0031, Japan
Microbiol Immunol 47:359-61. 2003..These results suggest that a reassortment to produce A(H1N2) does not readily occur even when A(H1N1) and A(H3N2) co-circulate in a community such as Yamagata... - A slow spread of adenovirus type 7 infection after its re-emergence in Yamagata, Japan, in 1995Katsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Japan
Microbiol Immunol 50:553-8. 2006..3-16.7% in 1997 and 0% in 1993. Our results suggest that a re-emergence does not always provoke a sudden major outbreak, even if the antibody-positive rate against Ad7 is low in the local community... - An outbreak of measles virus infection due to a genotype D9 at a junior high school in Yamagata, Japan in 2004Katsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata 990 0031, Japan
Jpn J Infect Dis 58:98-100. 2005..The more the number of measles cases decrease, the more important become the roles of public health laboratories, which genotype MVs and monitor their circulation and transmission pathways... - Frequent importation of enterovirus 71 from surrounding countries into the local community of Yamagata, Japan, between 1998 and 2003K Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi 1 6 6, Yamagata, 990 0031 Japan
J Clin Microbiol 43:6171-5. 2005..quot; Our results suggest that the importation of EV71 from surrounding countries has had a major epidemiological impact on the local community used in our study... - Re-emergence of echovirus type 13 infections in 2002 in Yamagata, JapanKatsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi 1 6 6, Yamagata, 990 0031, Japan
J Infect 47:243-7. 2003..To analyze the prevalence of echovirus type 13 (Echo13) in Yamagata, Japan... - Enterovirus isolation from children with acute respiratory infections and presumptive identification by a modified microplate methodKatsumi Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi, Yamagata shi, Japan
Int J Infect Dis 7:138-42. 2003..To evaluate a modified microplate method, utilizing HEF, HEp-2, Vero, MDCK and newly introduced RD-18S and GMK cell lines, for virus isolation... - Comparison of virus isolation using the Vero E6 cell line with real-time RT-PCR assay for the detection of human metapneumovirusYoko Matsuzaki
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi 1 6 6, Yamagata 990 0031, Japan
BMC Infect Dis 10:170. 2010..We aimed to compare the results of virus isolation using Vero E6 cells with real-time RT-PCR for the detection of hMPV, since such a comparison data is not available... - Saffold cardiovirus infection in children associated with respiratory disease and its similarity to coxsackievirus infectionTsutomu Itagaki
Yamanobe Pediatric Clinic, Yamagata, Japan
Pediatr Infect Dis J 30:680-3. 2011..The epidemiology and pathogenicity of SAFV remain unclear... - Clinical impact of human metapneumovirus genotypes and genotype-specific seroprevalence in Yamagata, JapanYoko Matsuzaki
Course of Clinical Nursing, Yamagata University Faculty of Medicine, Iida Nishi, Yamagata, Japan
J Med Virol 80:1084-9. 2008.... - Detailed genetic analysis of hemagglutinin-neuraminidase glycoprotein gene in human parainfluenza virus type 1 isolates from patients with acute respiratory infection between 2002 and 2009 in Yamagata prefecture, JapanKatsumi Mizuta
Yamagata Prefectural Institute of Public Health, 1 6 6 Toka machi, Yamagata shi, Yamagata 990 0031, Japan
Virol J 8:533. 2011.... - Acute respiratory infections due to enterovirus 68 in Yamagata, Japan between 2005 and 2010Tatsuya Ikeda
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Japan
Microbiol Immunol 56:139-43. 2012..Phylogenetic analysis indicated that plural genetically distinct clusters co-circulated. These results suggest that that difficulty in EV68 isolation leads to an underestimation of the prevalence of EV68 infections... - Phylogenetic and cluster analysis of human rhinovirus species A (HRV-A) isolated from children with acute respiratory infections in Yamagata, JapanKatsumi Mizuta
Yamagata Prefectural Institute of Public Health, 1 6 6 Toka machi, Yamagata shi, Yamagata 990 0031, Japan
Virus Res 147:265-74. 2010.... - Genetic diversity of influenza B virus: the frequent reassortment and cocirculation of the genetically distinct reassortant viruses in a communityYoko Matsuzaki
Department of Bacteriology, Yamagata University School of Medicine, Iida Nishi, Yamagata, Japan
J Med Virol 74:132-40. 2004.... - Clinical features of influenza C virus infection in childrenYoko Matsuzaki
Department of Infectious Diseases, Yamagata University School of Medicine, Iida Nishi, Yamagata, Japan
J Infect Dis 193:1229-35. 2006..Seroepidemiological studies have revealed that influenza C virus is widely distributed globally. However, because the isolation of this virus is difficult, there have been few reports on its clinical features... - Prolonged norovirus shedding in infants <or=6 months of age with gastroenteritisToshio Murata
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Japan
Pediatr Infect Dis J 26:46-9. 2007..Noroviruses (NV) are one of the leading causes of gastroenteritis in young children; however, the duration of NV shedding in young children is not well known... - Outbreak of human metapneumovirus detected by use of the Vero E6 cell line in isolates collected in Yamagata, Japan, in 2004 and 2005C Abiko
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi, Yamagata 990 0031, Japan
J Clin Microbiol 45:1912-9. 2007..Finally, we found that Vero E6 cells are useful for the isolation of hMPVs and that this utility might aid further research into hMPVs beyond the epidemiological data shown in this study... - Characterization of antigenically and genetically similar influenza C viruses isolated in Japan during the 1999-2000 seasonY Matsuzaki
Department of Bacteriology, Yamagata University School of Medicine, Iida Nishi, Yamagata, Japan
Epidemiol Infect 132:709-20. 2004.... - Epidemics of two Victoria and Yamagata influenza B lineages in Yamagata, JapanK Mizuta
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi, Yamagata, Japan
Epidemiol Infect 132:721-6. 2004..Since the epidemiology of the two influenza B lineages remains unclear, a careful watch should be kept on these lineages in order to provide effective public-health strategies against future epidemics... - A nationwide epidemic of influenza C virus infection in Japan in 2004Yoko Matsuzaki
Department of Infectious Diseases, Yamagata University School of Medicine, Iida nishi 2 2 2, Yamagata 990 9585, Japan
J Clin Microbiol 45:783-8. 2007..These results suggest that an epidemic of influenza C virus occurred on a national scale during this period and that RT-PCR can be an effective supplemental tool for the evaluation of clinical and epidemiological information... - An attenuated strain of enterovirus 71 belonging to genotype a showed a broad spectrum of antigenicity with attenuated neurovirulence in cynomolgus monkeysMinetaro Arita
Department of Virology II, National Institute of Infectious Diseases, 4 7 1 Gakuen, Musashimurayama shi, Tokyo 208 0011, Japan
J Virol 81:9386-95. 2007..In the CNS, EV71(S1-3') was isolated only from the spinal cord. These results indicate that EV71(S1-3') acts as an effective antigen, although this attenuated strain was still neurotropic when inoculated via the intravenous route...