Kevin Schwartz


Investigator, Li Ka Shing Knowledge Institute


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. Ong, SWX, Luo, J, Fridman, DJ, Lee, SM, Johnstone, J, Schwartz, KL et al.. Association between infectious diseases consultation and mortality in hospitalized patients with Gram-negative bloodstream infection: a retrospective population-wide cohort study. Clin Infect Dis. 2024; :. doi: 10.1093/cid/ciae282. PubMed PMID:38758977 .
  2. Jorgensen, SCJ, Brown, K, Clarke, AE, Schwartz, KL, Maxwell, C, Daneman, N et al.. The Effect of COVID-19 Vaccination on Outpatient Antibiotic Prescribing in Older Adults: A Self-Controlled Risk-Interval Study. Clin Infect Dis. 2024; :. doi: 10.1093/cid/ciae182. PubMed PMID:38700036 .
  3. Michalsen, BO, Xu, AXT, Alderson, SL, Bjerrum, L, Brehaut, J, Bucher, HC et al.. Regional and national antimicrobial stewardship activities: a survey from the Joint Programming Initiative on Antimicrobial Resistance-Primary Care Antibiotic Audit and Feedback Network (JPIAMR-PAAN). JAC Antimicrob Resist. 2023;5 (2):dlad048. doi: 10.1093/jacamr/dlad048. PubMed PMID:38659427 PubMed Central PMC10123362.
  4. Ong, SWX, Luo, J, Fridman, DJ, Lee, SM, Johnstone, J, Schwartz, KL et al.. Follow-up blood cultures do not reduce mortality in hospitalized patients with Gram-negative bloodstream infection: a retrospective population-wide cohort study. Clin Microbiol Infect. 2024; :. doi: 10.1016/j.cmi.2024.03.025. PubMed PMID:38552794 .
  5. Naveed, Z, Chu, C, Tadrous, M, Veroniki, AA, Li, J, Rouleau, I et al.. A multiprovincial retrospective analysis of the incidence of myocarditis or pericarditis after mRNA vaccination compared to the incidence after SARS-CoV-2 infection. Heliyon. 2024;10 (5):e26551. doi: 10.1016/j.heliyon.2024.e26551. PubMed PMID:38439866 PubMed Central PMC10909657.
  6. Chung, H, Campitelli, MA, Buchan, SA, Campigotto, A, Crowcroft, NS, Gubbay, JB et al.. Measuring waning protection from seasonal influenza vaccination during nine influenza seasons, Ontario, Canada, 2010/11 to 2018/19. Euro Surveill. 2024;29 (8):. doi: 10.2807/1560-7917.ES.2024.29.8.2300239. PubMed PMID:38390652 PubMed Central PMC10899815.
  7. Kazmi, K, Krueger, C, Wong, W, Baertschiger, RM, Hui, C, Nagy, A et al.. A Canadian children's hospital's experience with cystic echinococcosis over 30 years: A case series. J Assoc Med Microbiol Infect Dis Can. 2024;8 (4):262-271. doi: 10.3138/jammi-2022-0041. PubMed PMID:38250618 PubMed Central PMC10797762.
  8. Science, M, Orkin, J, Maguire, B, Bitnun, A, Bourns, L, Corbeil, A et al.. Viral dynamics of the SARS-CoV-2 Omicron Variant in Paediatric Patients; A prospective cohort study. Clin Infect Dis. 2023; :. doi: 10.1093/cid/ciad740. PubMed PMID:38084906 .
  9. Fell, DB, Russell, M, Fung, SG, Swayze, S, Chung, H, Buchan, SA et al.. Effectiveness of maternal influenza vaccination during pregnancy against laboratory-confirmed seasonal influenza among infants under 6 months of age in Ontario, Canada. J Infect Dis. 2023; :. doi: 10.1093/infdis/jiad539. PubMed PMID:38029414 .
  10. Tandon, P, Brown, KA, Daneman, N, Langford, BJ, Leung, V, Friedman, L et al.. Variability in changes in physician outpatient antibiotic prescribing from 2019 to 2021 during the COVID-19 pandemic in Ontario, Canada. Antimicrob Steward Healthc Epidemiol. 2023;3 (1):e171. doi: 10.1017/ash.2023.433. PubMed PMID:38028902 PubMed Central PMC10644162.
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Affiliations & Other Activities

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