Most Canadians have hybrid COVID-19 immunity. Could it prevent a fall wave? – GLOBAL

August 15, 2023

After more than three years of COVID-19, most people in Canada have developed immunity against the virus through a mix of infection and vaccination, data shows.

By March 2023, more than 75 per cent of the population had immunity because of a COVID-19 infection, according to a study published in the Canadian Medical Association Journal (CMAJ) Monday.

Researchers at the COVID-19 Immunity Task Force looked at blood samples of thousands of Canadians of all ages collected between March 2020 and March 2023 and found that the Omicron variant led to a rapid rise in infection-induced antibodies last year.

During the Omicron waves, the rates of infection-acquired immunity appeared to be highest among younger Canadians, the CMAJ research showed.

Read more:

NationTalk Partners & Sponsors Learn More