Faculty profile

Bradley Langford

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Assistant ProfessorClinical Public Health DivisionUniversity of Toronto

Signals and details

Latest papers

Klebsiella pneumoniae urinary tract infection: A multicentric study highlights significant regional variations in antimicrobial susceptibility across India
IJID Regions · 2025
Mapping antimicrobial susceptibility of community-acquired uropathogenic Escherichia coli across low, middle and high-income countries highlights significant differences: insights for empiric treatment
IJID Regions · 2025
Impact of community pharmacist antibiotic prescribing for minor ailments: an interrupted time series analysis
BMJ Open · 2025

All 14 publications

Latest funding

Canadian ANtibiotic prescribing feedback initiative: Building a national framework to combat AntiMicrobial Resistance in primary care (CANBuild-AMR) - Planning and Dissemination Grant
CIHR · 2025 · Co-investigator
$50,000
Developing an Ontario community pharmacy-based Minor ailment service Evaluation framework (DOME).
CIHR · 2023 · Co-investigator
$49,875
A pragmatic randomized trial to evaluate the effect of a peer-comparison feedback letter on antimicrobial use in hospital-based physicians
CIHR · 2023 · Co-investigator
$634,949

All 7 grants and awards

14 publications.

Klebsiella pneumoniae urinary tract infection: A multicentric study highlights significant regional variations in antimicrobial susceptibility across India

Rizvi M, Malhotra S, Sami H, Agarwal J, Siddiqui AH, Devi S, Poojary A, Thakuria B, Princess I, Gupta A

IJID Regions20257 citations

DOI: 10.1016/j.ijregi.2025.100605

Mapping antimicrobial susceptibility of community-acquired uropathogenic Escherichia coli across low, middle and high-income countries highlights significant differences: insights for empiric treatment

Rizvi M, Khan M, Al-Jardani A, Al-Abri SS, Ghoshal U, Al Jabri Z, Ahanjan M, Al Mamari A, Al Shizawi N, Sami H

IJID Regions20254 citations

DOI: 10.1016/j.ijregi.2025.100706

Impact of community pharmacist antibiotic prescribing for minor ailments: an interrupted time series analysis

Leung V, Langford B, Brown KA, Ghahramani D, Hoang J, Oberai A, Tadrous M, Daneman N, Saqib K, Schwartz K

BMJ Open20253 citations

DOI: 10.1136/bmjopen-2025-107109

Regional variations in antimicrobial susceptibility of community-acquired uropathogenic Escherichia coli in India: Findings of a multicentric study highlighting the importance of local antibiograms

Rizvi M, Malhotra S, Agarwal J, Siddiqui AH, Devi S, Poojary A, Thakuria B, Princess I, Sami H, Gupta A

IJID Regions202419 citations

DOI: 10.1016/j.ijregi.2024.100370

Follow-up blood cultures do not reduce mortality in hospitalized patients with Gram-negative bloodstream infection: a retrospective population-wide cohort study

Ong SWX, Luo J, Fridman DJ, Lee SM, Johnstone J, Schwartz KL, Diong C, Patel SN, MacFadden D, Langford B

Clinical Microbiology and Infection (CMI)202416 citations

DOI: 10.1016/j.cmi.2024.03.025

Process evaluation of two large randomized controlled trials to understand factors influencing family physicians’ use of antibiotic audit and feedback reports

Shuldiner J, Lacroix M, Saragosa M, Reis C, Schwartz KL, Gushue S, Leung V, Grimshaw J, Silverman M, Thavorn K

Implementation Science20248 citations

DOI: 10.1186/s13012-024-01393-5

Coronavirus Disease 2019 Vaccination Is Associated With Reduced Outpatient Antibiotic Prescribing in Older Adults With Confirmed Severe Acute Respiratory Syndrome Coronavirus 2: A Population-Wide Cohort Study

MacFadden DR, Maxwell C, Bowdish D, Bronskill S, Brooks J, Brown K, Burrows LL, Clarke A, Langford B, Leung E

Clinical Infectious Diseases202312 citationsOpen Access

DOI: 10.1093/cid/ciad190 PMID: W4362038795

The impact of the COVID-19 pandemic on blood culture practices and bloodstream infections

Driedger M, Daneman N, Brown K, Gold WL, Jorgensen SCJ, Maxwell C, Schwartz KL, Morris AM, Thiruchelvam D, Langford B

Microbiology Spectrum20235 citations

DOI: 10.1128/spectrum.02630-23

Prevalence and Mortality Associated with Bloodstream Organisms: a Population-Wide Retrospective Cohort Study

Verway M, Brown KA, Marchand-Austin A, Diong C, Lee S, Langford B, Schwartz KL, MacFadden DR, Patel SN, Sander B

Journal of Clinical Microbiology2022157 citations

DOI: 10.1128/jcm.02429-21

Virtual learning collaboratives to improve urine culturing and antibiotic prescribing in long-term care: controlled before-and-after study

Chambers A, Chen C, Brown KA, Daneman N, Langford B, Leung V, Adomako K, Schwartz KL, Moore JE, Quirk J

BMJ Quality and Safety202224 citations

DOI: 10.1136/bmjqs-2020-012226

Profile data last refreshed on July 30, 2025 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Bradley Langford

Latest papers

Latest funding

Klebsiella pneumoniae urinary tract infection: A multicentric study highlights significant regional variations in antimicrobial susceptibility across India

Mapping antimicrobial susceptibility of community-acquired uropathogenic Escherichia coli across low, middle and high-income countries highlights significant differences: insights for empiric treatment

Impact of community pharmacist antibiotic prescribing for minor ailments: an interrupted time series analysis

Regional variations in antimicrobial susceptibility of community-acquired uropathogenic Escherichia coli in India: Findings of a multicentric study highlighting the importance of local antibiograms

Follow-up blood cultures do not reduce mortality in hospitalized patients with Gram-negative bloodstream infection: a retrospective population-wide cohort study

Process evaluation of two large randomized controlled trials to understand factors influencing family physicians’ use of antibiotic audit and feedback reports

Coronavirus Disease 2019 Vaccination Is Associated With Reduced Outpatient Antibiotic Prescribing in Older Adults With Confirmed Severe Acute Respiratory Syndrome Coronavirus 2: A Population-Wide Cohort Study

The impact of the COVID-19 pandemic on blood culture practices and bloodstream infections

Prevalence and Mortality Associated with Bloodstream Organisms: a Population-Wide Retrospective Cohort Study

Virtual learning collaboratives to improve urine culturing and antibiotic prescribing in long-term care: controlled before-and-after study

Canadian ANtibiotic prescribing feedback initiative: Building a national framework to combat AntiMicrobial Resistance in primary care (CANBuild-AMR) - Planning and Dissemination Grant

Developing an Ontario community pharmacy-based Minor ailment service Evaluation framework (DOME).

A pragmatic randomized trial to evaluate the effect of a peer-comparison feedback letter on antimicrobial use in hospital-based physicians

A pragmatic randomized trial to evaluate the effect of a peer-comparison feedback letter on antimicrobial use in hospital-based physicians

Investigating variation in the inpatient allocation of scarce COVID-19 therapeutics: Equity and Clinical Outcomes

Investigating variation in the inpatient allocation of scarce COVID-19 therapeutics: Equity and Clinical Outcomes

Feedback to Improve Rational STrategies of Antibiotic Initiation and Duration in Long Term Care (FIRST AID - LTC)

Frequent collaborators

Bradley Langford

Nick Daneman

Gary Garber

Gary Garber

Jennie Johnstone

Derek MacFadden

Allison McGeer

Derek MacFadden

Colleen Maxwell

Elizabeth Leung

Michael Silverman

Beate Sander

Colleen Maxwell

Mina Tadrous

Kevin Schwartz

Kednapa Thavorn

Derek MacFadden

Caroline Nott

Michelle Greiver

Derek MacFadden

Marianne Saragosa