Updated COVID-19 vaccines are rolling out across Canada. Here’s a science-backed approach to timing your next dose. – CBC

Oct. 7, 2022

When the first round of COVID-19 vaccines arrived in late 2020, millions of unprotected Canadians rushed to get a shot as soon as they could.

Nearly two years later, updated vaccines — which target the dominant Omicron family of variants — are rolling out across the country.

And at this point in the pandemic, the immunity landscape is far more complicated.

“Now what we have are different people who’ve been vaccinated at different times, maybe even with different vaccines. Many people have been infected and recovered from COVID-19 at various points in time as well,” said Dr. Isaac Bogoch, an infectious diseases specialist with the University Health Network in Toronto.

“So it’s much harder to have a one-size-fits-all approach to the vaccine rollout.”

Read more: https://www.cbc.ca/newsinteractives/features/your-best-shot