Table 3 
Provincial or Regional SARS-CoV-2 antibody seroprevalence estimates, by antibody seroprevalence type 

Provincial or Regional SARS-CoV-2 antibody seroprevalence estimates, by antibody seroprevalence type
  Antibody seroprevalence overall percentage Low 95% Confidence Interval High 95% Confidence Interva Antibody seroprevalence due to infection percentage Low 95% Confidence Interval High 95% Confidence Interval Antibody seroprevalence due to vaccination percentage Low 95% Confidence Interval High 95% Confidence Interval
Canada 3.6 2.6 4.2 2.6 1.6 3.2 1.0 0.0 1.3
Atlantic Region 1.3 0.3 1.8 0.5 0.0 0.7 0.9 0.0 1.3
Quebec 4.4 3.2 5.4 3.2 2.1 4.1 1.2 0.2 1.7
Ontario 3.3 1.6 5.5 2.5 1.1 4.4 0.8 0.0 1.9
Manitoba 3.1 1.8 4.5 2.4 1.2 3.6 0.7 0.0 1.5
Saskatchewan 4.1 2.6 5.7 2.9 1.6 4.3 1.2 0.1 2.2
Alberta 5.6 4.0 7.4 4.0 2.6 5.7 1.6 0.3 3.4
British Columbia 2.4 1.1 3.9 1.6 0.5 2.9 0.8 0.0 1.7
Territories Region 21.1 17.6 25.0 0.0 0.0 0.8 21.1 17.6 25.0
Note(s):
Some seroprevalence estimates may not add correctly due to rounding.
Source(s):
Statistics Canada; Canadian COVID-19 Antibody and Health Survey (5339).
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