Héma-Québec Seroprevalence Study
The objectives of the study are to :
1. Estimate the proportion of population that was infected by the SARS-CoV-2 virus in the province of Quebec, particularly in the greater Montreal area, during the first wave of COVID-19;
2. Monitor the evolution of this proportion until the end of the pandemic and;
3. Estimate the proportion of people infected with SARS-CoV-2 who remained asymptomatic during the first wave of the disease.
Overview
- Acronym
- HQ
- Website
- HQ
- Investigators
-
- Contacts
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General Design
- Study design
- Cohort
- Start - End Year
- 2020 -
- General Information on Follow Up (profile, frequency)
-
In order to continue monitoring the evolution of COVID-19 in Quebec, the study may be repeated at regular intervals until the end of the pandemic. The first follow-up will begin in January 2021 and will continue over a 7-week period in the context of the second wave of the pandemic.
- Recruitment Target
-
- Individuals
- Number of Participants
- 7,691
- Number of Participants with Biological Samples
- 7,691
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
|
Timeline
Population
HQ population
The population is composed of individuals aged 18 to 81 who donated blood between May 25 and July 9 2020 in 14 of Quebec's 18 health regions.
Selection Criteria
- Minimum age
-
18
- Maximum age
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81
- Countries
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- Canada
- Territory
- Quebec
- Health Status
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- Being eligible for regular blood donation (good health)
- Other Criteria
- Exclusion: symptoms of COVID-19 in the last 14 days prior to their donation
Sources of Recruitment
- Specific Population
-
- Other specific population : Blood donors
- Supplementary Information
-
The participants of this seroprevalence study were regular blood donors who completed their donation between May 25 and July 9 2020.
Sample Size
- Number of Participants
- 7,691
- Number of Participants with Biological Samples
- 7,691
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 | HQ - Wave 1 | Blood samples were collected for a serological test that was used to determine the ... | 2020 (May) | 2020 (July) |
| 1 | HQ - Nested case-control study | Information was collected from participants in whom antibodies to SARS-CoV-2 had been ... | 2020 (May) | 2020 (July) |
| 2 | HQ - Wave 2 | Blood samples were collected for a serological test that was used to determine the ... | 2021 (January) | 2021 (March) |
Participating Studies
| Acronym | Name | Study design | Countries |
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Harmonization Initiatives Included
| Acronym | Name |
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Networks
| Acronym | Name | Harmonization Initiatives | Individual Studies |
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Datasets
| Name | Type | Data Collection Events | Variables |
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Last Update: 2021-04-23 17:22