Children and COVID-19: seroprevalence study

Overview

Acronym
EnCORE
Website
EnCORE
Investigators
  • Dr. Jesse Papenburg

    Montreal Children’s Hospital

  • Dr. Kate Zinszer

    University of Montreal

  • Dr. Caroline Quach

    University of Montreal

  • Dr. Patricia Conrod

    University of Montreal

  • Dr. Gaston DeSerres

    INSPQ

  • Dr. Britt McKinnon

    University of Montreal

  • Dr. Monica Zahreddine

    University of Montreal

Contacts
  • Dr. Kate Zinszer

    University of Montreal

General Design

Study design
Cohort
Start Year
2020
General Information on Follow Up (profile, frequency)
Children and school/daycare personnel are followed-up using a shortened baseline questionnaire, for the end of school year data collection and also, regardless of seroprevalence status from the first test, they will be retested at the end of the school year.
Recruitment Target
  • Individuals
Number of Participants
3,443
Number of Participants with Biological Samples
3,443

Access

Availability of data and biosamples

Possible Access to Data
Possible Access to Biosamples
Other

Timeline

Populations

EnCORE - Children

Selection Criteria

Minimum age
2
Maximum age
17
Countries
  • Canada
Territory
Montreal
Health Status
  • Exclusion: chronic disease or other health conditions that preclude participation in the study
Supplementary Information
The sentinel neighbourhoods are: West Island, Hochelaga-Maisonneuve Montréal-Nord, and Plateau.

Sources of Recruitment

General Population
  • Selected sample
Supplementary Information

First, sentinel neighbourhoods from Montreal were selected.

Then different school boards that operate within the selected neighbourhoods as well as with the different daycare associations were contacted.

Once school approval was received, an invitation email from the director of the school was sent to all parents and guardians of currently enrolled students. The invitation email included a short description of the project as well as a link to the study website. On the study website, students, parents, guardians, and personnel found more details about the study, describing details on how to contact the research team in addition to a video capsule that introduced the study team and study.

In addition to the letter of invitation, they also recruited participants through social media by: posting information on the school or daycare’s Facebook page when possible, Facebook ads for their study, that would be able to direct the recruitment ad to Facebook users that live in the study neighbourhoods.

Sample Size

Number of Participants
2,612
Number of Participants with Biological Samples
2,612

Data Collection Events

# Name Description Start End
0 EnCORE - Children - Baseline 2020 (October) 2021 (March)
1 EnCORE - Children - Follow-up 1 2021 (May) 2021 (June)
EnCORE - Daycare and school personnel

Selection Criteria

Countries
  • Canada
Territory
Montreal
Health Status
  • Exclusion: chronic disease or other health conditions that preclude participation in the study

Sources of Recruitment

Specific Population
  • Other specific population : Personnel from the children's daycare and school
Supplementary Information

Different school boards that operate within the selected neighbourhoods as well as with the different daycare associations were contacted.

Once school approval was received, an invitation email from the director of the school was sent. The invitation email included a short description of the project as well as a link to the study website. On the study website, personnel found more details about the study, describing details on how to contact the research team in addition to a video capsule that introduced the study team and study.

In addition to the letter of invitation, they also recruited participants through social media by: posting information on the school or daycare’s Facebook page when possible, Facebook ads for their study, that would be able to direct the recruitment ad to Facebook users that live in the study neighbourhoods.

All daycare and school personnel in the selected daycares and schools were eligible and were asked to participate.

Sample Size

Number of Participants
831
Number of Participants with Biological Samples
831

Data Collection Events

# Name Description Start End
0 EnCORE - Daycare and school personnel - Baseline 2021 (March) 2021 (April)
1 EnCORE - Daycare and school personnel - Follow-up 2021 (May) 2021 (June)

Individual Studies Included

Acronym Name Study design Participants Countries

Harmonization Projects Included

Acronym Name

Networks

Acronym Name Studies

Datasets

Name Type Data Collection Events Variables
Last Update: 2021-04-30 19:59