Researchers are working around the clock to answer crucial questions about COVID-19, like how the virus spread across Canada and whether those who have had it are now immune. Tina Yazdani with the latest findings. 1130covid19canadacftryoutubecitynewsyoutubeCoronaviruscoronavirus immunitycovidCOVID-19COVID19immune systemIMMUNITYlatestregion=calgaryregion=edmontoncitynewsregion=montrealcitynewsregion=nationalregion=torontoregion=toronto680newsregion=torontocitynewsregion=vancouverregion=winnipegcitynewsresearchRevealssection=localsection=nationalsection=newsshow=citynewsshow=covid19newsspreadsrc=citynewsvideoVIRUSVITAMINvlogYouTubeRelated Posts Did Your Allergies Get Worse After COVID? Watch This February 26, 2026 There may be a universal vaccine in the future. #science #vaccine #doctor February 21, 2026 The Immune Shift No One Explains After COVID February 19, 2026 Doctor Reacts: Covid masks in 2026?! February 19, 2026 ‘Particularly capricious’: Doctor weighs in on undermining of mRNA technology February 15, 2026 COVID’s Hidden Impact: Immune System Triggers Explained #shorts January 30, 2026