Interim scientific guidance

Écrit constitué d’une synthèse rapide des connaissances ou une revue rapide qui repose souvent sur un examen détaillé des recommandations des organismes sanitaires québécois, canadiens et internationaux et qui inclut une consultation ou un consensus d’experts pour en arriver à des recommandations qui peuvent ou non être suivies de recommandations finales sous la forme d’un avis scientifique.

Administration of COVID-19 booster doses: Recommendations for winter and spring 2023

At the beginning of the COVID-19 vaccination campaign, results from clinical studies showed that two doses of vaccine provided excellent protection against disease and hospitalization due to COVID-19. However, the large epidemic wave caused by the arrival of the Omicron variant in late 2021 led to a broad recommendation to administer a booster dose to all adults. This outbreak highlighted the reduced performance of the vaccines in preventing symptomatic COVID-19, while demonstrating that…

Interim scientific guidance

COVID-19: Evaluation of Disinfection Options for N95 Filtering Facepiece Respirators in the Context of the Pandemic

The present document analyzes current knowledge about available disinfection options for N95 FFRs and puts into perspective the advantages and limitations of each disinfection process identified. The authorizations that have been issued by Health Canada are also specified. Finally, the recommendations of the CERDM are presented.

Interim scientific guidance

Preliminary Data on Vaccine Effectiveness and Supplementary Opinion on the Strategy for Vaccination Against COVID-19 in Quebec in a Context of Shortage

The Ministère de la Santé et des Services sociaux (MSSS) recently asked the CIQ to issue an opinion on the target interval before administration of the second dose, and important considerations to be taken into account for decision-making. The purpose of this opinion is to answer this question through an analysis of the most recent data on COVID-19 vaccine effectiveness from Quebec and abroad.

Interim scientific guidance

Requested supplement to the notice Strategy for Vaccination Against COVID-19: Postponement of the Second Dose in a Context of Shortage

Recently, various strategies have been recommended in a number of jurisdictions regarding the time interval between the two doses of COVID-19 vaccines. The Ministère de la Santé et des Services sociaux (MSSS) has asked the Comité sur l'immunisation du Québec (CIQ) to explain the basis of these different intervals. The MSSS also inquired whether the CIQ has maintained the recommendations that it put forward in a recent scientific notice, in particular, the recommendation to offer an initial…

Interim scientific guidance

Strategy for Vaccination Against COVID-19: Postponement of the Second Dose in a Context of Shortage

The number of cases, hospitalizations, and deaths due to COVID-19 have been increasing in Quebec since August 2020. In addition to the suffering of those infected and their friends and family, caring for patients and their contacts creates a significant burden for healthcare workers, who are frequently infected, threatening the integrity of our healthcare system. The way the pandemic develops in the coming months will depend on the population’s compliance with the recommendations to…

Experts opinion