COVID-19 update: B.C. adds 7 deaths, 743 new cases as province marks vaccination milestone

A woman wears a protective face covering to help prevent the spread of COVID-19 as she bikes past the emergency entrance of Vancouver General Hospital in Vancouver, B.C., Friday, April 9, 2021. THE CANADIAN PRESS/Jonathan Hayward A woman wears a protective face covering to help prevent the spread of COVID-19 as she bikes past the emergency entrance of Vancouver General Hospital in Vancouver, B.C., Friday, April 9, 2021. THE CANADIAN PRESS/Jonathan Hayward

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Why COVID-19 boosters weren't tweaked to better match variants

More COVID-19 booster shots may be on the way -- but when it's your turn, you'll get an extra dose of the original vaccine, not one updated to better match the extra-contagious delta variant. And that has some experts wondering if the booster campaign is a bit of a missed opportunity to target delta and its likely descendants.