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Kevin Schwartz

MD, MSc, FRCPC, DTM&H

Investigator, Li Ka Shing Knowledge Institute

Tel: 416-530-6000 Ex: 4921
Email: kevin.schwartz@unityhealth.to
Twitter: @DrKevinSchwartz

Biography

Kevin Schwartz is an infectious disease physician. He is the division head for infectious diseases at St. Joseph’s Health Centre in Toronto and co-medical director for antimicrobial stewardship at Unity Health Toronto. He is an academic infection control and antimicrobial stewardship physician at Public Health Ontario, an assistant professor at the Dalla Lana School of Public Health at the University of Toronto, and an adjunct scientist at ICES.

His clinical area of interest is adult and pediatric infectious diseases and tropical medicine. His research interests include vaccine preventable diseases and antimicrobial stewardship with a particular focus on improving community antibiotic use to slow the emergence of drug resistant infections.

Recent Publications

  1. MacFadden, DR, Maxwell, C, Bowdish, D, Bronskill, S, Brooks, J, Brown, K et al.. Peri-Covid-19 Antibiotic Use and Antimicrobial Resistance in Older Adults. NEJM Evid. 2025;4 (10):EVIDoa2400108. doi: 10.1056/EVIDoa2400108. PubMed PMID:40985783 .
  2. Williams, V, Schwartz, KL, Brown, K, Muller, M, Powis, J, Ricciuto, D et al.. Risk mitigation of shared room ventilation and filtration on SARS-CoV-2 transmission: a multicenter test-negative study. Infect Control Hosp Epidemiol. 2025;46 (10):1-7. doi: 10.1017/ice.2025.10256. PubMed PMID:40928142 PubMed Central PMC12615120.
  3. Fakhraei, R, Fell, DB, El-Chaâr, D, Thampi, N, Sander, B, Brown, KA et al.. Group B Streptococcus disease during infancy and risk of subsequent neurodevelopmental impairments in young children: a population-based cohort study in Ontario, Canada. Lancet Reg Health Am. 2025;48 :101170. doi: 10.1016/j.lana.2025.101170. PubMed PMID:40688764 PubMed Central PMC12271814.
  4. Saqib, K, Ivers, N, Brown, KA, Daneman, N, Leung, V, Langford, BJ et al.. Spillover From an Intervention on Antibiotic Prescribing for Family Physicians: A Post Hoc Secondary Analysis of a Randomized Clinical Trial. JAMA Netw Open. 2025;8 (7):e2518261. doi: 10.1001/jamanetworkopen.2025.18261. PubMed PMID:40591360 PubMed Central PMC12215572.
  5. Leung, V, Alameri, M, Almohri, H, Brown, KA, Daneman, N, Kus, JV et al.. Exploring variability in antibiograms: a cross-sectional study. JAC Antimicrob Resist. 2025;7 (3):dlaf084. doi: 10.1093/jacamr/dlaf084. PubMed PMID:40520028 PubMed Central PMC12163904.
  6. Lee, N, Nguyen, L, Nasreen, S, Austin, PC, Brown, KA, Buchan, SA et al.. Limited durability of protection conferred by XBB.1.5 vaccines against omicron-associated severe outcomes among community-dwelling adults, Ontario, Canada. Vaccine. 2025;60 :127300. doi: 10.1016/j.vaccine.2025.127300. PubMed PMID:40424706 .
  7. Brown, KA, Fridman, DJ, Garber, GE, Johnstone, J, Langford, BJ, Leung, V et al.. The Burden of Antimicrobial Resistant Bacteremia in Ontario: A Population-Wide Analysis of Attributable Mortality From 110 Pathogen-Antibiotic Combinations. Clin Infect Dis. 2025;81 (4):728-737. doi: 10.1093/cid/ciaf213. PubMed PMID:40356393 PubMed Central PMC12596364.
  8. Emdin, F, Ong, SWX, McGall, C, Leung, V, Schwartz, KL, Langford, BJ et al.. Short versus longer duration antibiotic treatment for urinary tract infections in companion animals: a systematic review and meta-analysis. BMC Vet Res. 2025;21 (1):280. doi: 10.1186/s12917-025-04722-y. PubMed PMID:40241166 PubMed Central PMC12004815.
  9. Langford, BJ, Thomas, S, Brown, K, Daneman, N, Schwartz, KL, Leung, V et al.. Resourcing for hospital antibiotic stewardship programs is associated with higher participation in antimicrobial use tracking: a cross-sectional study. Antimicrob Steward Healthc Epidemiol. 2025;5 (1):e80. doi: 10.1017/ash.2025.53. PubMed PMID:40109909 PubMed Central PMC11920909.
  10. Sapin, ME, Maxwell, CJ, Clarke, AE, Cooper, C, So, M, Schwartz, KL et al.. Patterns of outpatient antibiotic prescribing in older adults by social determinants of healthcare access: a population-based retrospective cohort study. Clin Microbiol Infect. 2025;31 (7):1196-1202. doi: 10.1016/j.cmi.2025.02.025. PubMed PMID:40032081 .
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Affiliations & Other Activities

  • Public Health Ontario
  • Adjunct Scientist ICES
  • Assistant Professor, Dalla Lana School of Public Health, University of Toronto