[HTML][HTML] Effectiveness of N95 respirators versus surgical masks in protecting health care workers from acute respiratory infection: a systematic review and meta …

JD Smith, CC MacDougall, J Johnstone, RA Copes… - Cmaj, 2016 - Can Med Assoc
Background: Conflicting recommendations exist related to which facial protection should be
used by health care workers to prevent transmission of acute respiratory infections, including …

Viral infection in adults hospitalized with community-acquired pneumonia: prevalence, pathogens, and presentation

J Johnstone, SR Majumdar, JD Fox, TJ Marrie - Chest, 2008 - Elsevier
Background The potential role of respiratory viruses in the natural history of community-acquired
pneumonia (CAP) in adults has not been well described since the advent of nucleic …

Measurement of the systemic inflammatory response predicts cancer-specific and non-cancer survival in patients with cancer

…, N Sattar, WJ Angerson, J Johnstone… - Nutrition and …, 2001 - Taylor & Francis
The assessment of prognosis in patients with advanced cancer remains problematical. The
value of C-reactive protein concentration in this context has not been clearly defined. …

Effect of probiotics on incident ventilator-associated pneumonia in critically ill patients: a randomized clinical trial

J Johnstone, M Meade, F Lauzier, J Marshall, E Duan… - Jama, 2021 - jamanetwork.com
Importance Growing interest in microbial dysbiosis during critical illness has raised
questions about the therapeutic potential of microbiome modification with probiotics. Prior …

Blood CD33 (+) HLA-DR (−) myeloid-derived suppressor cells are increased with age and a history of cancer

CP Verschoor, J Johnstone, J Millar… - Journal of leukocyte …, 2013 - academic.oup.com
Myeloid-derived suppressor cells are increased with age and elevated in donors with a
history of cancer; an age-related effect has never been shown in humans. As we age, the …

Long-term morbidity and mortality after hospitalization with community-acquired pneumonia: a population-based cohort study

J Johnstone, DT Eurich, SR Majumdar, Y Jin, TJ Marrie - Medicine, 2008 - journals.lww.com
Little is known about the long-term sequelae of community-acquired pneumonia (CAP).
Therefore, we describe the long-term morbidity and mortality of patients after pneumonia …

Populations at risk for severe or complicated influenza illness: systematic review and meta-analysis

D Mertz, TH Kim, J Johnstone, PP Lam, SP Kuster… - Bmj, 2013 - bmj.com
Objective To evaluate risk factors for severe outcomes in patients with seasonal and pandemic
influenza. Design Systematic review. Study selection Observational studies reporting on …

The loss of topography in the microbial communities of the upper respiratory tract in the elderly

…, K Luinstra, M Loeb, M Smieja, J Johnstone… - Annals of the …, 2014 - atsjournals.org
Rationale: The microbial communities inhabiting the upper respiratory tract protect from
respiratory infection. The maturity of the immune system is a major influence on the composition …

VRE and VSE bacteremia outcomes in the era of effective VRE therapy: a systematic review and meta-analysis

C Prematunge, C MacDougall, J Johnstone… - infection control & …, 2016 - cambridge.org
BACKGROUNDPrior data suggest that vancomycin-resistant Enterococcus (VRE)
bacteremia is associated with worse outcomes than vancomycin-sensitive Enterococcus (VSE) …

Vaccine herd effect

TH Kim, J Johnstone, M Loeb - Scandinavian journal of infectious …, 2011 - Taylor & Francis
Vaccination ideally protects susceptible populations at high risk for complications of the
infection. However, vaccines for these subgroups do not always provide sufficient effectiveness. …