More than 2,200 Canadians diagnosed with COVID-19 at least two weeks after getting their first vaccination

As of last week, more than 2,200 Canadians were diagnosed with COVID-19 at least two weeks after getting their first vaccination.

The Public Health Agency of Canada says vaccinated individuals make up about 1.3 per cent of infections since vaccinations began in December.

It says the percentage of breakthrough cases is small, and so far, there isn't enough data to understand the reasons behind the infections.

It isn't clear if these cases involve one approved vaccine more than another.

The National Advisory Committee on Immunization will hold a news conference later today to issue guidance on the Johnson & Johnson single-dose shot, which is not in use yet.