In December of 2020 there was a lot of hope in the air as the first shots of the COVID-19 vaccine were administered in Canada. Fast forward a year and more than 75 per cent of the population is considered fully vaccinated with two doses. But with the Delta variant still dominant and public health officials on high alert about the new Omicron variant, another shot of the vaccine is being recommended by the National Advisory Committee on Immunization. That means a third dose of the vaccine could soon be made available for many Canadians 18 years of age and older.
The Globe’s health reporter, Carly Weeks, explains why a booster shot is being recommended, how it will help with waning immunity and what we should expect as we head into a second COVID-19 winter.
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