Dr. Jennie Johnstone

Infection Prevention and Control

Photo of Dr. Jennie Johnstone

"Reducing health care-associated infections is an essential component to improving the health of Ontarians. By working at PHO, I am able to generate new knowledge about health care-associated infections through research and help translate these findings into practice and policy through knowledge to action initiatives."

Areas of Expertise

  • infectious disease
  • infection prevention and control
  • health care-associated infections
  • immunosenescence
  • epidemiology

Academic Degrees and Accreditations

  • Doctor of Philosophy (Health Research Methodology), McMaster University
  • Doctor of Medicine, Dalhousie University
  • Fellow, The Royal College of Physicians of Canada, Certifications in Internal Medicine and Infectious Diseases
  • Member, College of Physicians and Surgeons of Ontario

PHO Research Interests

  • Vancomycin-resistant enterococcus and vancomycin-variable enterococcus
  • Clostridium difficile
  • ventilator-associated pneumonia

PHO Research Activities

  • Investigating rates and predictors of vancomycin-resistant enterococcal bacteremia in Ontario.
  • Investigating whether probiotics reduce ventilator associated pneumonia (the PROSPECT Trial).
  • Investigating the prevalence of C. difficile colonization among patients admitted to hospital.
  • Collaborating on a project defining the burden of vancomycin variable enterococcus bacteremia.

Selected Publications

  1. Johnstone J, Chen C, Rosella L, Adomako K, Policarpio ME, Lam F; Ontario VRE Investigators. Patient- and hospital-level predictors of vancomycin-resistant Enterococcus (VRE) bacteremia in Ontario, Canada. Am J Infect Control. 2018 Jun 11 [Epub ahead of print]
  2. Johnstone J, Parsons R, Botelho F, Millar J, McNeil S, Fulop T, et al. T-cell phenotypes predictive of frailty and mortality in elderly nursing home residents. J Am Geriatr Soc 2017;65:153-159.
  3. Johnstone J, Policarpio ME, Lam F, Adomako K, Prematunge C, Nadolny E,et al. Rates of blood cultures positive for vancomycin-resistant Enterococcus in Ontario: a quasi-experimental study. CMAJ Open. 2017;5:E273-80.
  4. Cook DJ, Johnstone J, Marshall JC, Lauzier F, Thabane L, Mehta S, et al. Probiotics: Prevention of Severe Pneumonia and Endotracheal Colonization Trial - PROSPECT: a pilot trial. Trials 2016;17:377.
  5. Johnstone J, Meade M, Marshall J, Heyland DK, Surette MG, Bowdish DM, et al; PROSPECT Investigators and the Canadian Critical Care Trials Group. Probiotics: Prevention of Severe Pneumonia and Endotracheal Colonization Trial – PROSPECT: protocol for a feasibility randomized pilot trial. Pilot Feasibility Stud. 2015;1:19.

View more publications by Dr. Jennie Johnstone on PubMed.gov

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Updated 18 Nov 2020