CIRANO has published an update of its exploratory study to estimate the incidence of COVID-19 cases in Quebec. This update integrates the data from the twelfth week of collection, which took place from March 31 to April 5, 2022, with a sample of 3000 respondents representative of the Quebec population and compares them to other collection weeks.

It should be noted that this study is spread over several consecutive weeks in order to monitor the evolution of the situation. The study uses both a direct sampling strategy and an indirect sampling estimation based on the network scale-up (NSS) method. Details of the methods are available in the CIRANO 2022s-03 working paper.

→ Twelfth week of collection (March 31 to April 5, 2022)

Highlights: 

• Increase more marked this week in Western Quebec and Central Quebec regions.
• The trend is to stabilize in the Northern and Eastern regions of Quebec.

This study is conducted by a team of researchers composed of David Boisclair (HEC Montréal), Roxane Borgès Da Silva (Université de Montréal and CIRANO), Vincent Boucher (Université Laval) Nathalie de Marcellis-Warin (Polytechnique Montréal and CIRANO), Pierre-Carl Michaud (HEC and CIRANO),  Ingrid Peignier (CIRANO) and Alexandre Pud'Homme (Université de Montréal).