Spotlight www. thelancet. com/respiratory Vol 8 October 2020 955 if additional studies show
that facemasks have small relative effects or no effect when used broadly, framing the …

This rapid systematic review of evidence asks whether (i) wearing a face mask, (ii) one type
of mask over another and (iii) mandatory mask policies can reduce the transmission of SARS…

Importance Traditional approaches to practice guidelines frequently result in dissociation
between strength of recommendation and quality of evidence. Objective To construct a clinical …

Objectives:To measure the impact of an antimicrobial stewardship initiative on the rate of
urine culture testing and antimicrobial prescribing for urinary tract infections (UTIs) between …

Objectives The four SARS-CoV-2 variants of concern (VOC; Alpha, Beta, Gamma and Delta)
identified by May 2021 are highly transmissible, yet little is known about their impact on …

Despite COVID-19’s significant morbidity and mortality, considering cost-effectiveness of
pharmacologic treatment strategies for hospitalized patients remains critical to support …

Context More than 18M people worldwide (150K Canadians) are living with Long COVID
resulting in debilitating sequalae and disabilities that impact their quality of life and capacity to …

Background: In Canada, published outcome data for COVID-19 come largely from the first 2
waves of the pandemic. We examined changes in demographics and 30-day outcomes after …

This paper summarizes COVID-19 disease epidemiology in Canada in the pre-vaccine era—from
January through to December 2020. Canadian case numbers, risk factors, disease …

Background As of November 25th 2021, four SARS-CoV − 2 variants of concern (VOC:
Alpha (B.1.1.7), Beta (B.1.351), Gamma (P.1), and Delta (B.1.617.2)) have been detected. …