COVID-19 vaccine mandates have worked in Canada — but they're harder than ever to justify cbc.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from cbc.ca Daily Mail and Mail on Sunday newspapers.
A Canadian study that vastly underestimated the protection COVID-19 vaccines provide against the Omicron variant is being revised but not before it spread widely on social media by anti-vaxxers, academics and even the creators of the Russian Sputnik V vaccine.
With the emergence of the omicron variant, the holidays rapidly approaching and COVID-19 case levels still elevated in much of the country, should Canada wait for more proof of waning immunity before expanding eligibility of boosters?
New Canadian data suggests the strategy to delay and mix second doses of COVID-19 vaccines led to strong protection from infection, hospitalization and death even against the highly contagious delta variant that could provide lessons for the world.