A small minority of Montreal children have had COVID-19

Kate Zinszer
Results from an ongoing study led by an Université de Montréal public-health expert shed important light on the extent to which a small minority of 2- to 17-year-olds in the city had COVID-19 between October 2020 and April 2021.
On average, 5.8 per cent of participating children were found to have antibodies to SARS-CoV-2, the virus that causes COVID-19. However, the seroprevalence (proportion of children with antibodies in their blood) increased sharply over time.
In October and November of 2020, only 3.3 per cent of children had antibodies. By April 2021, in the third wave, 8.9 per cent of the students tested had antibodies. The results of this study are preliminary and have not yet been peer-reviewed.

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