The highly contagious Delta variant accounts for majority of the novel coronavirus (COVID-19) cases recently reported in Canada.
The Chief Public Health Officer of Canada, Dr. Theresa Tam, in a statement said “During this fourth wave of the COVID-19 pandemic in Canada, infections and severe outcomes have several key features.”
Dr. Tam further added that nationally, the highly contagious Delta Variant of Concern (VOC), accounts for the majority of recently reported cases, is associated with increased severity, and may reduce the effectiveness of vaccines.
Most reported cases, hospitalisations and deaths are occurring among unvaccinated people, she said, adding that virus spread in areas with low vaccination coverage presents an ongoing risk for emergence of and replacement by new VOCs, including a risk of VOCs with the ability to evade vaccine protection.
“Regardless of which SARS-CoV-2 variant is predominating in an area, we know that vaccination, in combination with public health and individual measures, continue to work to reduce disease spread and severe outcomes,” Dr. Tam said.
According to Dr. Tam, provinces and territories have administered over 55.5 million doses of COVID-19 vaccines as of September 23, 2021, with the latest provincial and territorial data indicating that over 87% of people aged 12 years or older have received at least one dose of COVID-19 vaccine and over 80% are now fully vaccinated.