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Elucidating the meaning of healthy carrier of drug-resistant bacteria in the community for contain the spread of drug-resistant bacteria

Research Project

Project/Area Number 17H04663
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Hygiene and public health
Research InstitutionUniversity of the Ryukyus

Principal Investigator

Hirai Itaru  琉球大学, 医学部, 教授 (00359994)

Co-Investigator(Kenkyū-buntansha) 宮城 和文  琉球大学, 医学部, 助教 (70372810)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords薬剤耐性菌 / 健康保菌 / 感染症 / 抗生物質
Outline of Final Research Achievements

In the Southeast Asian countries including Vietnam, it has been reported that detection rates of drug-resistant bacteria, such as ESBL-producing bacteria, were high and that more than half of healthy individuals carried those drug-resistant bacteria. This study was conducted in one area of Hanoi, Vietnam. Consequently, our interview suggested the distance between a health office and participants’ house and gender, i.e. female, might be associated the carriage rate of ESBL-producing bacteria. It has been suggested that there might be genetic relatedness among ESBL-producing isolates obtained from family member and from around toilet of their house. It implied that ESBL-producing bacteria may be transmitted among the family members through housework and toilets. It was suggested that these points could be targets for activity to contain distribution of drug-resistance bacteria in the community.

Academic Significance and Societal Importance of the Research Achievements

ベトナムなど東南アジア諸国で多く観察されている健康な人の薬剤耐性菌保菌について、保菌している薬剤耐性菌の家庭内の伝播の可能性を示した。この点は、今後ベトナムで行われる可能性のある薬剤耐性菌の封じ込めを目的とした活動において一つの標的となる可能性があり、これまで制御が非常に難しかったコミュニティにおける薬剤耐性菌の感染制御に対して重要な知見となったものと考えられる。また、本研究で行われた薬剤耐性菌の分子性情解析において、副次的に確立された薬剤耐性遺伝子の解析法は、今後薬剤耐性菌分布の調査や伝播方向の解析に用いられる可能性もあり、学術的にも価値の高いものと推察される。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (35 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (12 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 12 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] 国立栄養院(ベトナム)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 国立栄養院(ベトナム)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 国立栄養院(ベトナム)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Comparison of species, virulence genes and clones of Aeromonas isolates from clinical specimens and well water in Okinawa Prefecture, Japan2021

    • Author(s)
      Miyagi K.、Shimoji N.、Shimoji S.、Tahara R.、Uechi A.、Tamaki I.、Oshiro H.、Komiyama A.、Tedokon M.、Hirai I.
    • Journal Title

      Journal of Applied Microbiology

      Volume: - Issue: 3 Pages: 1515-1530

    • DOI

      10.1111/jam.15038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A high-throughput sequencing determination method for upstream genetic structure (UGS) of ISEcp1-blaCTX-M transposition unit and application of the UGS to classification of bacterial isolates possessing blaCTX-M2021

    • Author(s)
      Yagi Nobuyoshi、Hamamoto Kouta、Thi Bui Kim Ngan、Ueda Shuhei、Tawata Saki、Le Danh Tuyen、Thi Bui Mai Huong、Hirai Itaru
    • Journal Title

      Journal of Infection and Chemotherapy

      Volume: - Issue: 9 Pages: 1288-1294

    • DOI

      10.1016/j.jiac.2021.04.001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Differential effects of chromosome and plasmid bla<sub>CTX-M-15</sub> genes on antibiotic susceptibilities in extended-spectrum beta-lactamase-producing Escherichia coli isolates from patients with urinary tract infection2021

    • Author(s)
      Yang Young‐min、Osawa Kayo、Kitagawa Koichi、Hosoya Samiko、Onishi Reo、Ishii Aya、Shirakawa Toshiro、Hirai Itaru、Kuntaman Kuntaman、Tanimoto Hiroshi、Shigemura Katsumi、Fujisawa Masato
    • Journal Title

      International Journal of Urology

      Volume: 28 Issue: 6 Pages: 623

    • DOI

      10.1111/iju.14498

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High Prevalence of Colistin-Resistant Escherichia coli with Chromosomally Carried mcr-1 in Healthy Residents in Vietnam2020

    • Author(s)
      Yamaguchi Takahiro、Kawahara Ryuji、Hamamoto Kouta、Hirai Itaru、Khong Diep Thi、Nguyen Thang Nam、Tran Hoa Thi、Motooka Daisuke、Nakamura Shota、Yamamoto Yoshimasa
    • Journal Title

      mSphere

      Volume: 5 Issue: 2

    • DOI

      10.1128/msphere.00117-20

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterization of blaCTX-M-14 transposition from plasmid to chromosome in Escherichia coli experimental strain2020

    • Author(s)
      Hamamoto Kouta、Tokunaga Toshiro、Yagi Nobuyoshi、Hirai Itaru
    • Journal Title

      International Journal of Medical Microbiology

      Volume: 310 Issue: 2 Pages: 151395-151395

    • DOI

      10.1016/j.ijmm.2020.151395

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of CTX-M-type-extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae isolated from Indonesian undergraduate medical students of a university in Surabaya, Indonesia2020

    • Author(s)
      Rosantia Sarassari、Higa Takuya、Yagi Nobuyoshi、Tokunaga Toshiro、Higa Seina、Yakabi Yasuaki、Shirakawa Toshiro、Kuntaman Kuntaman、Hirai Itaru
    • Journal Title

      Journal of Infection and Chemotherapy

      Volume: - Issue: 6 Pages: 575-581

    • DOI

      10.1016/j.jiac.2020.01.010

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterization of CTX-M type ESBL-producing Enterobacteriaceae isolated from asymptomatic healthy individuals who live in a community of the Okinawa prefecture, Japan2019

    • Author(s)
      Higa Seina、Sarassari Rosantia、Hamamoto Kouta、Yakabi Yasuaki、Higa Kanta、Koja Yasuko、Hirai Itaru
    • Journal Title

      Journal of Infection and Chemotherapy

      Volume: 25 Issue: 4 Pages: 314-317

    • DOI

      10.1016/j.jiac.2018.09.005

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wide dissemination of colistin-resistant Escherichia coli with the mobile resistance gene mcr in healthy residents in Vietnam2019

    • Author(s)
      Yamamoto, Y.,Kawahara, R., Fujiya, Y., Sasaki, T., Hirai, I., Khong, D. T., Nguyen, T. N., Nguyen, B. X.
    • Journal Title

      J Antimicrob Chemother

      Volume: 74 Issue: 2 Pages: 523-524

    • DOI

      10.1093/jac/dky435

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterisation of chromosomally-located blaCTX-M and its surrounding sequence in CTX-M-type extended-spectrum β-lactamase-producing Escherichia coli isolates2019

    • Author(s)
      Hamamoto Kouta、Hirai Itaru
    • Journal Title

      Journal of Global Antimicrobial Resistance

      Volume: 17 Pages: 53-57

    • DOI

      10.1016/j.jgar.2018.11.006

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A survey of extended-spectrum β-lactamase-producing Enterobacteriaceae in environmental water in Okinawa Prefecture of Japan and relationship with indicator organisms2019

    • Author(s)
      Miyagi Kazufumi、Hirai Itaru
    • Journal Title

      Environmental Science and Pollution Research

      Volume: 26 Issue: 8 Pages: 7697-7710

    • DOI

      10.1007/s11356-019-04189-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Potential transmission opportunity of CTX-M-producing Escherichia coli on a large-scale chicken farm in Vietnam.2017

    • Author(s)
      Bui TKN, Bui TMH, Ueda S, Le DT, Yamamoto Y, Hirai I
    • Journal Title

      J Glob Antimicrob Resist

      Volume: 13 Pages: 1-6

    • DOI

      10.1016/j.jgar.2017.09.014

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sanitary evaluation of domestic water supply facilities with storage tanks and detection of Aeromonas, enteric and related bacteria in domestic water facilities in Okinawa Prefecture of Japan.2017

    • Author(s)
      Miyagi K, Sano K, Hirai I
    • Journal Title

      Water Res.

      Volume: 119 Pages: 171-177

    • DOI

      10.1016/j.watres.2017.04.002

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Aeromonas 属菌のflaA 遺伝子の病原性に関する遺伝子学的解析2021

    • Author(s)
      宮城 和文,平井 到
    • Organizer
      第94回日本細菌学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ESBL 遺伝子の上流遺伝子構造(ESBL-UGS)の解析によるプラ スミドの遺伝学的背景の推定2021

    • Author(s)
      屋宜 宣慶,多和田 早紀,平井 到
    • Organizer
      第94回日本細菌学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Upstream Gene Sequences of ISEcp1 in ESBL-Producing E. coli collected from Indonesia and Vietnam2021

    • Author(s)
      Fikri Sasongko Widyatama, Rosantia Sarassari, Nobuyoshi Yagi, Kuntaman Kuntaman, Itaru Hirai
    • Organizer
      第94回日本細菌学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Characterization of CTX-M type ESBL-producing E. coli from ICU and non-ICU ward in Indonesia2020

    • Author(s)
      Rosantia Sarassari,比嘉 祐也,屋宜 宣慶,Kuntaman Kuntaman,平井 到
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ISEcp1 による多様な右側末端配列を用いた薬剤耐性遺伝子の転移2020

    • Author(s)
      浜元 宏太,徳永 敏郎,屋宜 宣慶,平井 到
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 家族内および家族間におけるblaCTX-M の伝播2020

    • Author(s)
      屋宜 宣慶,平井 到
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Characterization of ESBL-producing Escherichia coli in Surabaya, Indonesia2020

    • Author(s)
      Fikri Widyatama,Rosantia Sarassari,比嘉 祐也,浜元 宏太,Kuntaman Kuntaman,平井 到
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Clonal Diversity of blaCTX-M-Positive Escherichia coli Isolates Carried in Healthy Vietnamese Individuals.2019

    • Author(s)
      Bui Thi Kim Ngan, Shuhei Ueda, Nobuyoshi Yagi, Kouta Hamamoto, Le Danh Tuyen, Bui Thi Mai Huong, Itaru Hirai
    • Organizer
      ASM Microbe 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular Feature in ISEcp1 Transposase as Potential Contributing Factor for High Transfer Frequency of blaCTX-M-14 Transposition Unit from Plasmid to Chromosome2019

    • Author(s)
      Kouta Hamamoto, Toshiro Tokunaga, Nobuyoshi Yagi, Itaru Hirai
    • Organizer
      ASM Microbe 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 臨床と環境由来Aeromonas菌種の病原性とクローン識別2019

    • Author(s)
      宮城和文, 下地省吾, 田原里奈, 下地法明, 玉城格, 上地あゆみ, 大城春奈, 込山麻美, 平井到
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Characterization of ESBL-producing Escherichia coli in medical Students.2019

    • Author(s)
      Rosantia Sarassari,Takuya Higa,Kuntaman Kuntaman,Itaru Hirai
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 抗菌薬選択圧非存在下における染色体性blaCTX-M の安定性2019

    • Author(s)
      徳永 敏郎,Rosantia Sarassari,屋嘉比 泰亮,平井 到
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Escherichia coli モデル株を用いたISEcp1-blaCTX-M-14 のプラスミドから染色体への転移頻度の解析2019

    • Author(s)
      浜元 宏太,徳永 敏郎,屋宜 宣慶,平井 到
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] インドネシアの総合病院に入院するICU 患者と病棟患者が保有するESBL 産生大腸菌の比較2019

    • Author(s)
      比嘉 祐也,Rosantia Sarassari,Kuntaman Kuntaman,平井 到
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Nanopore sequencing によるblaCTX-M 存在位置の解析法の確立2019

    • Author(s)
      屋宜 宣慶,浜元 宏太,平井 到
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Aeromonas の感染源の解明及び臨床と環境分離株の性状2018

    • Author(s)
      宮城和文、下地法明、玉城格、上地あゆみ、平井到
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 大腸菌におけるblaCTX-Mのプラスミドから染色体への転移頻度とその意義2018

    • Author(s)
      浜元宏太、徳永敏郎、屋宜宣慶、平井 到
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 沖縄県の健常人由来基質特異性拡張型βラクタマーゼ産生菌の性状解析2018

    • Author(s)
      比嘉聖菜、浜元宏太、屋嘉比泰亮、Rosantia Sarassari、古謝安子、平井到
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] The Pattern of ESBL producing gut flora among hospitalized patients and community in Surabaya2018

    • Author(s)
      Rosantia Sarassari、Usman Hadi、平井到、Kuntaman Kuntaman
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] The Role of Chromosomal blactx-m in Distribution of Escherichia coli Producing CTX-M Type Extended-Spectrum β-Lactamase Isolated from a Hospital of Okinawa, Japan2017

    • Author(s)
      K. Hamamoto, I. Hirai
    • Organizer
      ASM microbe 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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