Antimicrobial Resistance & Stewardship Research Team
Antimicrobial resistance (AMR) is a growing public health threat that requires coordinated action across the health system. Our team’s activities support provincial initiatives to mitigate AMR by expanding surveillance capabilities, generating evidence to guide appropriate antimicrobial use, and developing tools and interventions that promote responsible prescribing. We achieve this by collaborating with partners and experts across the province, nationally and internationally, including the Antimicrobial Stewardship Advisory Committee.
Strengthening Ontario’s AMR and AMU Surveillance Systems
We are expanding surveillance infrastructure and capacity to improve the comprehensiveness and accessibility of AMR and antimicrobial use (AMU) data, by leveraging provincial data assets such as the Ontario Laboratories Information System. This work improves the comprehensiveness, timeliness, and usability of data to support informed decision making across the health sector.
Advancing Evidence-based Antimicrobial Stewardship
We conduct interventional and observational studies, systematic reviews, meta analyses, and knowledge translation activities to promote best practices in antimicrobial prescribing. Our team develops practical tools and resources to support clinicians, health organizations, and decision makers in implementing and evaluating effective antimicrobial stewardship (AMS) approaches.
By The Numbers (Metrics)
150+ peer-reviewed publications as of 2017
5,000+ citations
Featured Publications
Meet the Team

Dr. Kevin Brown
Senior Scientist
Research Focus:
- Epidemiology and biostatistics
- Public health interventions
- Antimicrobial resistance and C. difficile
- Covid-19 and respiratory infections

Dr. Kevin Schwartz
Physician
Research Focus:
- Antimicrobial stewardship
- Audit and feedback
- Administrative data
- Epidemiology
- Vaccines

Dr. Nick Daneman
Clinician Scientist
Research Focus:
- Infectious diseases
- Antimicrobial stewardship and resistance
- Health-care associated infections
- Critical care infections
- Bacteremia
- C. difficile

Dr. Bradley Langford
Pharmacist Specialist
Bradley is a pharmacist specialist in the antimicrobial resistance and antimicrobial stewardship (AMR/AMS) program at Public Health Ontario.
He leads applied research and surveillance on antimicrobial use and resistance trends, and supports the design, implementation, and evaluation of stewardship initiatives across health care settings in Ontario.
His expertise includes antimicrobial stewardship, evidence synthesis, and knowledge translation, with a focus on developing practical tools that support public health decision making and promote appropriate antimicrobial use to reduce the harms of antimicrobial resistance.

Valerie Leung
Antimicrobial Stewardship Program Lead
Research Focus:
- Antimicrobial Stewardship
- Implementation Science
- Quality Improvement
Additional Team Members
Lindsay Friedman
Research Coordinator
Michelle Wong
Research Assistant
Morgan Anderson
Program Coordinator
Fiona Emdin
PhD Student
Adan Amer
PhD Student
Shahab Mohammad Ebrahimi
Post-Doctoral Fellow
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