Reiko Saito

Summary

Affiliation: Niigata University
Country: Japan

Publications

  1. pmc Novel measurement of spreading pattern of influenza epidemic by using weighted standard distance method: retrospective spatial statistical study of influenza, Japan, 1999-2009
    Yugo Shobugawa
    School of Public Health, Loma Linda University, 24760 Stewart St, CC 3104, Loma Linda, CA 92350, USA
    Int J Health Geogr 11:20. 2012
  2. pmc Detection of amantadine-resistant influenza A virus strains in nursing homes by PCR-restriction fragment length polymorphism analysis with nasopharyngeal swabs
    Reiko Saito
    Department of Public Health, Niigata University, School of Medicine, Niigata City, Niigata, 951 8510, Japan
    J Clin Microbiol 40:84-8. 2002
  3. ncbi request reprint High prevalence of amantadine-resistance influenza a (H3N2) in six prefectures, Japan, in the 2005-2006 season
    Reiko Saito
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Science, Niigata, Japan
    J Med Virol 79:1569-76. 2007
  4. ncbi request reprint An off-seasonal amantadine-resistant H3N2 influenza outbreak in Japan
    Reiko Saito
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Japan
    Tohoku J Exp Med 210:21-7. 2006
  5. ncbi request reprint Geographic mapping method shows potential for mapping influenza activity in Europe
    Reiko Saito
    Department of Public Health, Niigata University Graduate School of Medical and Dental Science, Niigata, Japan
    Euro Surveill 10:E051027.6. 2005
  6. doi request reprint Reduced effectiveness of oseltamivir in children infected with oseltamivir-resistant influenza A (H1N1) viruses with His275Tyr mutation
    Reiko Saito
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Sciences, Niigata City, Niigata Prefecture, Japan
    Pediatr Infect Dis J 29:898-904. 2010
  7. pmc Frequency of amantadine-resistant influenza A viruses during two seasons featuring cocirculation of H1N1 and H3N2
    Reiko Saito
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 41:2164-5. 2003
  8. doi request reprint Neuraminidase inhibitor susceptibility profile of pandemic and seasonal influenza viruses during the 2009-2010 and 2010-2011 influenza seasons in Japan
    Clyde Dapat
    Division of International Health Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan Electronic address
    Antiviral Res 99:261-9. 2013
  9. doi request reprint Molecular evolution of human influenza A viruses in a local area during eight influenza epidemics from 2000 to 2007
    Hassan Zaraket
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Graduate School of Medical and Dental Sciences, Niigata University, 1 757, Asahimachi Dori, Niigata, Niigata 951 8510, Japan
    Arch Virol 154:285-95. 2009
  10. doi request reprint Emergence of H274Y oseltamivir-resistant A(H1N1) influenza viruses in Japan during the 2008-2009 season
    Tatiana Baranovich
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1 757 Asahimachi dori, Chuoku, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Virol 47:23-8. 2010

Collaborators

Detail Information

Publications44

  1. pmc Novel measurement of spreading pattern of influenza epidemic by using weighted standard distance method: retrospective spatial statistical study of influenza, Japan, 1999-2009
    Yugo Shobugawa
    School of Public Health, Loma Linda University, 24760 Stewart St, CC 3104, Loma Linda, CA 92350, USA
    Int J Health Geogr 11:20. 2012
    ..WSD is a single numerical value representing the spatial compactness of influenza outbreak, which is small in case of clustered distribution and large in case of dispersed distribution...
  2. pmc Detection of amantadine-resistant influenza A virus strains in nursing homes by PCR-restriction fragment length polymorphism analysis with nasopharyngeal swabs
    Reiko Saito
    Department of Public Health, Niigata University, School of Medicine, Niigata City, Niigata, 951 8510, Japan
    J Clin Microbiol 40:84-8. 2002
    ....
  3. ncbi request reprint High prevalence of amantadine-resistance influenza a (H3N2) in six prefectures, Japan, in the 2005-2006 season
    Reiko Saito
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Science, Niigata, Japan
    J Med Virol 79:1569-76. 2007
    ..Antiviral resistance monitoring should be intensified and maintained for rapid feedback into treatment strategies, and selection of alternative therapeutic agents...
  4. ncbi request reprint An off-seasonal amantadine-resistant H3N2 influenza outbreak in Japan
    Reiko Saito
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Japan
    Tohoku J Exp Med 210:21-7. 2006
    ..Our findings suggested that an off-season community influenza outbreak in Nagasaki was caused by a distinct clade in H3N2 (named clade N), which possessed characteristics of amantadine resistance...
  5. ncbi request reprint Geographic mapping method shows potential for mapping influenza activity in Europe
    Reiko Saito
    Department of Public Health, Niigata University Graduate School of Medical and Dental Science, Niigata, Japan
    Euro Surveill 10:E051027.6. 2005
  6. doi request reprint Reduced effectiveness of oseltamivir in children infected with oseltamivir-resistant influenza A (H1N1) viruses with His275Tyr mutation
    Reiko Saito
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Sciences, Niigata City, Niigata Prefecture, Japan
    Pediatr Infect Dis J 29:898-904. 2010
    ..Little is known about whether neuraminidase inhibitors are effective for children infected with oseltamivir-resistant influenza A(H1N1) viruses...
  7. pmc Frequency of amantadine-resistant influenza A viruses during two seasons featuring cocirculation of H1N1 and H3N2
    Reiko Saito
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 41:2164-5. 2003
    ..Predominant amino acid substitutions in M2 protein occurred at position 31 (serine to asparagine) in H3N2 strains and at position 27 (valine to alanine) in H1N1 strains...
  8. doi request reprint Neuraminidase inhibitor susceptibility profile of pandemic and seasonal influenza viruses during the 2009-2010 and 2010-2011 influenza seasons in Japan
    Clyde Dapat
    Division of International Health Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan Electronic address
    Antiviral Res 99:261-9. 2013
    ..Despite widespread use of NAIs in Japan, the prevalence of NAI-resistant influenza viruses is still low...
  9. doi request reprint Molecular evolution of human influenza A viruses in a local area during eight influenza epidemics from 2000 to 2007
    Hassan Zaraket
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Graduate School of Medical and Dental Sciences, Niigata University, 1 757, Asahimachi Dori, Niigata, Niigata 951 8510, Japan
    Arch Virol 154:285-95. 2009
    ..Finally, acquisition or loss of N-glycosylation sites was shown to contribute to the evolution of influenza A virus, especially in the case of H3N2, which had a higher tendency to acquire new glycosylation sites...
  10. doi request reprint Emergence of H274Y oseltamivir-resistant A(H1N1) influenza viruses in Japan during the 2008-2009 season
    Tatiana Baranovich
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1 757 Asahimachi dori, Chuoku, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Virol 47:23-8. 2010
    ..A substantial increase in oseltamivir-resistant A(H1N1) influenza viruses was reported in Europe in late 2007...
  11. pmc Genetic makeup of amantadine-resistant and oseltamivir-resistant human influenza A/H1N1 viruses
    Hassan Zaraket
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University, Graduate School of Medical and Dental Sciences, Niigata, Japan
    J Clin Microbiol 48:1085-92. 2010
    ....
  12. doi request reprint Epidemiology of human influenza A and B viruses in Myanmar from 2005 to 2007
    Clyde Dapat
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951 8510, Japan
    Intervirology 52:310-20. 2009
    ..To perform genetic analysis of influenza A and B viruses in Myanmar from 2005 to 2007 and to determine the prevalence of amantadine-resistant influenza A viruses...
  13. pmc Emerging genotypes of human respiratory syncytial virus subgroup A among patients in Japan
    Yugo Shobugawa
    Department of Infectious Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, Asahimachi Dori, Niigata City, Japan
    J Clin Microbiol 47:2475-82. 2009
    ..Continuing studies to follow up the genetic changes and to clarify the mechanism of reinfection in HRSV are important steps to understand HRSV infections...
  14. pmc New genotypes within respiratory syncytial virus group B genotype BA in Niigata, Japan
    Isolde C Dapat
    Division of Public Health, Department of Infectious Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1 757 Asahimachi dori, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 48:3423-7. 2010
    ..These new genotypes were not associated with large outbreaks in the community...
  15. ncbi request reprint Genomic events contributing to the high prevalence of amantadine-resistant influenza A/H3N2
    Hassan Zaraket
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    Antivir Ther 15:307-19. 2010
    ..The aim of this study was to clarify the genomic events contributing to the evolution and continuity of the N-lineage amantadine-resistant viruses...
  16. ncbi request reprint Recurrence and persistence of fever in children who developed amantadine-resistant influenza viruses after treatment
    Yugo Shobugawa
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    Tohoku J Exp Med 214:129-38. 2008
    ..s.). Therefore, we concluded that younger children were prone to develop amantadine-resistance after treatment and showed a significant recurrence of fever on day 4 and/or 5, and the course of illness was consequently prolonged...
  17. ncbi request reprint Effectiveness of oseltamivir treatment among children with influenza A or B virus infections during four successive winters in Niigata City, Japan
    Maki Sato
    Department of Public Health, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
    Tohoku J Exp Med 214:113-20. 2008
    ..Our data provide evidence that oseltamivir is beneficial for influenza infections, but the effectiveness is differed by type and age...
  18. doi request reprint Delayed emergence of oseltamivir-resistant seasonal influenza A (H1N1) and pandemic influenza A(H1N1)pdm09 viruses in Myanmar
    Clyde Dapat
    Division of International Health Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    Influenza Other Respir Viruses 7:766-71. 2013
    ..Interestingly, we detected three isolates that were resistant to both amantadine and oseltamivir. Limited movement of people into the country is attributed to the delayed emergence of drug-resistant seasonal and pandemic A(H1N1) viruses...
  19. pmc Identification of oseltamivir resistance among pandemic and seasonal influenza A (H1N1) viruses by an His275Tyr genotyping assay using the cycling probe method
    Yasushi Suzuki
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University, Graduate School of Medical and Dental Sciences, 1 757 Asahimachi dori, Chuo Ward, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 49:125-30. 2011
    ..This method is applicable to routine laboratory-based monitoring of drug resistance and patient management during antiviral therapy...
  20. ncbi request reprint Emergence of amantadine-resistant influenza A viruses: epidemiological study
    Hiroshi Suzuki
    Department of Public Health, Graduate School of Medical and Dental Sciences, 1 757 Asahimachi dori, Niigata 951 8510, Japan
    J Infect Chemother 9:195-200. 2003
    ..Measures should be taken to reduce contact, as much as possible, between persons taking and those not taking antiviral drugs for treatment or chemoprophylaxis...
  21. ncbi request reprint Antiviral drug susceptibilities of seasonal human influenza viruses in Lebanon, 2008-09 season
    Hassan Zaraket
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University, Graduate School of Medical and Dental Sciences, Niigata, Japan
    J Med Virol 82:1224-8. 2010
    ..Continued surveillance is important to fully elucidate influenza patterns in Lebanon and the Middle East in general, especially in light of the current influenza pandemic...
  22. pmc Rapid and specific detection of amantadine-resistant influenza A viruses with a Ser31Asn mutation by the cycling probe method
    Yasushi Suzuki
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Sciences, 1 757, Asahimachi Dori, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 48:57-63. 2010
    ....
  23. pmc High frequency of repeated infections due to emerging genotypes of human respiratory syncytial viruses among children during eight successive epidemic seasons in Japan
    Masahiro Yamaguchi
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1 757 Asahimachi dori, Niigata Prefecture 951 8510, Niigata City, Japan
    J Clin Microbiol 49:1034-40. 2011
    ....
  24. ncbi request reprint Phylogenetic analysis of an off-seasonal influenza virus A (H3N2) in Niigata, Japan, 2010
    Clyde Dapat
    Department of Public Health, Graduate School of Medicine and Dental Sciences, Niigata University, Niigata 951 8510, Japan
    Jpn J Infect Dis 64:237-41. 2011
    ..Whole genome analysis revealed that the virus was similar to the A/Perth/16/2009 strain and that it is a triple reassortant virus with a 3+3+2 pattern of segment recombination...
  25. pmc Epidemiologic study of influenza infection in Okinawa, Japan, from 2001 to 2007: changing patterns of seasonality and prevalence of amantadine-resistant influenza A virus
    Yasushi Suzuki
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Sciences, 1 757, Asahimachi Dori, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 47:623-9. 2009
    ....
  26. doi request reprint Clinical effectiveness of neuraminidase inhibitors--oseltamivir, zanamivir, laninamivir, and peramivir--for treatment of influenza A(H3N2) and A(H1N1)pdm09 infection: an observational study in the 2010-2011 influenza season in Japan
    Yugo Shobugawa
    Department of International Health, Graduate School of Medical and Dental Sciences, Niigata University, 1 757 Asahimachi dori, Chuo Ku, Niigata 951 8510, Japan
    J Infect Chemother 18:858-64. 2012
    ..Further evaluation of the clinical effectiveness of the newly released NAIs for influenza-infected patients, including those infected with A(H1N1)pdm09, is needed...
  27. pmc Rare influenza A (H3N2) variants with reduced sensitivity to antiviral drugs
    Clyde Dapat
    Department of Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    Emerg Infect Dis 16:493-6. 2010
    ..These rare and naturally occurring viruses harbored a novel Q136K mutation in neuraminidase and S31N mutation in M2...
  28. ncbi request reprint Antibody response to influenza vaccination in nursing home residents and healthcare workers during four successive seasons in Niigata, Japan
    Mizuho Sato
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University, Niigata Prefecture 951 8510, Japan
    Infect Control Hosp Epidemiol 26:859-66. 2005
    ..To evaluate the antibody response to influenza vaccines in nursing home residents and healthcare workers (HCWs) and its relation to residents' functional and chronic disease status during four successive seasons...
  29. pmc Molecular epidemiology of respiratory syncytial virus infections among children with acute respiratory symptoms in a community over three seasons
    Mizuho Sato
    Division of Public Health, Department of Infectious Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1 757, Asahimachi Dori, Niigata City, Niigata Prefecture, 951 8510, Japan
    J Clin Microbiol 43:36-40. 2005
    ..Support for determination of the genotype by RT-PCR as an effective tool for characterization of RSV circulation patterns in the community is provided...
  30. pmc Genetic analysis of influenza A/H3N2 and A/H1N1 viruses circulating in Vietnam from 2001 to 2006
    Danjuan Li
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Sciences, 1 757, Asahimachi Dori, Niigata City, Niigata Prefecture 951 8510, Japan
    J Clin Microbiol 46:399-405. 2008
    ..As influenza viruses circulate throughout the year, we emphasize the importance of surveillance in tropical and subtropical zones, where the emergence of new strains may be detected earlier than it is in temperate zones...
  31. pmc Genetic characterization of human influenza viruses in the pandemic (2009-2010) and post-pandemic (2010-2011) periods in Japan
    Isolde C Dapat
    Division of International Health, Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    PLoS ONE 7:e36455. 2012
    ..This study aims to characterize human influenza viruses circulating in Japan in the pandemic and post-pandemic periods and to determine the prevalence of antiviral-resistant viruses...
  32. pmc In vivo and in vitro alterations in influenza A/H3N2 virus M2 and hemagglutinin genes: effect of passage in MDCK-SIAT1 cells and conventional MDCK cells
    Danjuan Li
    Department of Public Health, Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
    J Clin Microbiol 47:466-8. 2009
    ..However, genetic changes occurred after serial passage in either MDCK or MDCK-SIAT1 cells. Our results showed that only a few mutations were observed in MDCK-SIAT1-passaged isolates in the presence of amantadine...
  33. doi request reprint Molecular characteristics of outbreaks of nosocomial infection with influenza A/H3N2 virus variants
    Taeko Oguma
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    Infect Control Hosp Epidemiol 32:267-75. 2011
    ..To describe outbreaks of nosocomial influenza infection with molecular methods and to elucidate the viral linkages among outbreak case patients including both inpatients and healthcare workers (HCWs)...
  34. ncbi request reprint Prevalence of human metapneumovirus and influenza virus infections among Japanese children during two successive winters
    Asami Sasaki
    Department of Public Health, Niigata University, School of Medicine, Japan
    Pediatr Infect Dis J 24:905-8. 2005
    ..The objective of this study was to identify links between hMPV and influenza virus infections among children with influenza-like illness...
  35. pmc Geographic and temporal trends in influenzalike illness, Japan, 1992-1999
    Takatsugu Sakai
    Department of Public Health, Niigata University School of Medicine, Niigata 951 8510, Japan
    Emerg Infect Dis 10:1822-6. 2004
    ..Applying the kriging method allowed better visualization and understanding of spatiotemporal trends in seasonal ILI activity. This method will likely be an important tool for future influenza surveillance in Japan...
  36. pmc Effective school actions for mitigating seasonal influenza outbreaks in Niigata, Japan
    Koshu Sugisaki
    Department of Health and Sports, Niigata University of Health and Welfare, Niigata, Japan
    PLoS ONE 8:e74716. 2013
    ..Japan has implemented various school actions during seasonal influenza outbreaks since the 1950's under the School Health Law. However, the effective duration, extent, and timing of closures remain unresolved...
  37. pmc Geodemographics profiling of influenza A and B virus infections in community neighborhoods in Japan
    Yoshinari Kimura
    Division of Public Health, Department of Infectious Disease Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
    BMC Infect Dis 11:36. 2011
    ..We aimed to clarify the relationship between the incidence of influenza and neighborhood characteristics using GIS and identified the type of small areas where influenza occurs frequently or infrequently...
  38. pmc The South to north variation of norovirus epidemics from 2006-07 to 2008-09 in Japan
    Shinako Inaida
    Division of International Health Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    PLoS ONE 8:e71696. 2013
    ..Severe cases are found in young children or patients with chronic diseases. Clarifying the patterns of epidemic diffusion is important for considering effective monitoring and surveillance as well as possible prevention...
  39. ncbi request reprint The effectiveness of influenza vaccine against influenza a (H3N2) virus infections in nursing homes in Niigata, Japan, during the 1998-1999 and 1999-2000 seasons
    Reiko Saito
    Department of Public Health, Niigata University School of Medicine, Niigata City, Japan
    Infect Control Hosp Epidemiol 23:82-6. 2002
    ..To evaluate the effectiveness of influenza vaccines against influenza-like illness (ILI) among nursing home residents...
  40. ncbi request reprint Measles outbreaks in high schools closely associated with sporting events in Niigata, Japan
    Asami Sasaki
    Department of Public Health, Niigata University Graduate School of Medical and Dental Sciences, 1 757, Asahimachi Dori, Niigata City, Niigata 951 8510, Japan
    J Infect 55:179-83. 2007
    ..Due to high vaccine coverage in Niigata, we had no outbreaks of measles from 1997 to 2003 but an opportunity to study the role of sporting events in the propagation of an epidemic was experienced in the spring of the latter year...
  41. doi request reprint Association of early annual peak influenza activity with El Niño southern oscillation in Japan
    Hassan Zaraket
    Department of Infectious Disease Control and International Medicine, Division of Public Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
    Influenza Other Respir Viruses 2:127-30. 2008
    ..El Niño southern oscillation (ENSO), which involves two extreme events, El Niño and La Niña, is well-known for its large effects on inter-annual climate variability. The influence of ENSO on several diseases has been described...
  42. ncbi request reprint Effectiveness of trivalent influenza vaccine among children in two consecutive seasons in a community in Japan
    Tsubasa Suzuki
    Division of International Health Public Health, Graduate School of Medical and Dental Sciences, Niigata University
    Tohoku J Exp Med 232:97-104. 2014
    ....
  43. ncbi request reprint [Antiviral resistance of influenza viruses]
    Reiko Saito
    Department of Public Health, Niigata University, Graduate School of Medical and Dental Sciences
    Nihon Rinsho 65:471-5. 2007
  44. doi request reprint Prolonged effects of participation in disaster relief operations after the Mid-Niigata earthquake on increased cardiovascular risk among local governmental staff
    Tomoko Azuma
    Division of Public Health, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
    J Hypertens 28:695-702. 2010
    ..The aim of this study was to clarify how disaster-related administrative workloads affect the cardiovascular risk factors of local governmental staff...