Ryuji Koizumi

Tokyo, Japan

Last Updated: 09/26/2026

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Found 34 publications

Development of the Susceptibility-Spectrum Discrepancy Index (S2DI): A novel metric for antimicrobial stewardship in hospitalised patients.

Development of the Susceptibility-Spectrum Discrepancy Index (S2DI): A novel metric for antimicrobial stewardship in hospitalised patients.

Journal: International journal of antimicrobial agents

Published: March 31, 2026

Impact of the antimicrobial stewardship incentive program on antimicrobial supply instability: An interrupted time-series analysis using national drug supply data.

Impact of the antimicrobial stewardship incentive program on antimicrobial supply instability: An interrupted time-series analysis using national drug supply data.

Journal: Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy

Published: March 12, 2026

Corrigendum to "Impact of antimicrobial resistance measures and the emergence of COVID-19 on antimicrobial use throughout the Japanese population: A retrospective cohort study using a national claims database" [International Journal of Antimicrobial Agents Volume 67(2026)107667].

Corrigendum to "Impact of antimicrobial resistance measures and the emergence of COVID-19 on antimicrobial use throughout the Japanese population: A retrospective cohort study using a national claims database" [International Journal of Antimicrobial Agents Volume 67(2026)107667].

Journal: International journal of antimicrobial agents

Published: January 04, 2026

Rethinking the WHO AWaRe classification: the need for more detailed guidance.

Rethinking the WHO AWaRe classification: the need for more detailed guidance.

Journal: EClinicalMedicine

Published: August 01, 2025

Impact of antimicrobial resistance measures and the emergence of COVID-19 on antimicrobial use throughout the Japanese population: A retrospective cohort study using a national claims database.

Impact of antimicrobial resistance measures and the emergence of COVID-19 on antimicrobial use throughout the Japanese population: A retrospective cohort study using a national claims database.

Journal: International journal of antimicrobial agents

Published: July 29, 2025

Evaluation of the Influence of the National Action Plan on Antimicrobial Resistance and the COVID-19 Pandemic on the Consumption of Broad-Spectrum Antimicrobial and Anti-methicillin-resistant Staphylococcus aureus Agents.

Evaluation of the Influence of the National Action Plan on Antimicrobial Resistance and the COVID-19 Pandemic on the Consumption of Broad-Spectrum Antimicrobial and Anti-methicillin-resistant Staphylococcus aureus Agents.

Journal: Biological & pharmaceutical bulletin

Published: April 23, 2025

Retrospective evaluation of the effectiveness of flomoxef against infections with extended-spectrum β-lactamase-producing Enterobacterales.

Retrospective evaluation of the effectiveness of flomoxef against infections with extended-spectrum β-lactamase-producing Enterobacterales.

Journal: GHM open

Published: April 07, 2025

Gender Differences in Antibiotic Prescriptions and Healthcare Visits Among Caregivers Accompanying Children with Respiratory Tract Infections: A Cross-Sectional Study.

Gender Differences in Antibiotic Prescriptions and Healthcare Visits Among Caregivers Accompanying Children with Respiratory Tract Infections: A Cross-Sectional Study.

Journal: Infectious diseases and therapy

Published: April 03, 2025

Factors associated with using penicillins as the first-choice antimicrobial among dentists in Japan: a national cross-sectional study.

Factors associated with using penicillins as the first-choice antimicrobial among dentists in Japan: a national cross-sectional study.

Journal: Antimicrobial stewardship & healthcare epidemiology : ASHE

Published: March 03, 2025

Trends in antimicrobial consumption: long-term impact of the COVID-19 pandemic.

Trends in antimicrobial consumption: long-term impact of the COVID-19 pandemic.

Journal: Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases

Published: July 09, 2024

Comparison of the effects of cefmetazole and meropenem on microbiome: A pilot study.

Comparison of the effects of cefmetazole and meropenem on microbiome: A pilot study.

Journal: Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy

Published: April 22, 2024

Disease burden of main bacterial infections in Japan, 2015-2020: A population-level study.

Disease burden of main bacterial infections in Japan, 2015-2020: A population-level study.

Journal: Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy

Published: December 19, 2023

Showing 1-12 of 34

Last Updated: 09/26/2026