2:11 More than 17M Canadians have contracted COVID-19 in 5 months Predictions of a fall COVID-19 wave make another booster vaccine campaign likely but questions abound over how the virus will continue ...

4:52 Health Canada approves updated COVID-19 vaccine Public health officials say the number of COVID-19 infections is climbing again — just in time for respiratory virus season in the fall and winter, ...

The mix-and-match approach B.C. used to administer COVID-19 vaccines to some people appears to give high levels of immunity against the novel coronavirus, a B.C. study has found. The B.C. Centre for ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Data shows that ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. People cross the ...

The study, and others like it, is offering insights into an enduring debate over the risk of SARS-CoV-2 reinfection among the unvaccinated, a debate as politicized as COVID itself You can save this ...

Protection provided by COVID-19 vaccines against infection by the novel coronavirus has waned dramatically since the highly infectious Omicron variant started spreading across Ontario, according to ...

People who have recovered from COVID-19 and been vaccinated against the virus have the best and longest lasting protection against future infection, compared to people who have been only vaccinated or ...

People who had previously been infected with COVID-19 were better protected against the Delta variant than those who were vaccinated alone, suggesting that natural immunity was a more potent shield ...

Ian Haydon helped test Moderna's coronavirus vaccine last year. Now, he's helping test the tweaked version of that vaccine designed to fight a new, more contagious variant. "A year ago I tried the ...