When Canadians were asked to get their first two covid vaccines, they were told that doing so would get them back to normal. Now some of them are booking and receiving their fourth shots. And more than that, we originally called two shots "fully vaccinated"—when clearly time and the virus have proven that wrong.

So what happened to our plan for vaccinations and how has it changed? Could a new, targeted vaccine expected this fall put an end to endless boosters? Did we get the messaging about vaccines wrong a year ago? And how do we make sure that vaccine hesitancy around Covid shots doesn't spread to shots that we've all been giving our children for decades?

GUEST: Sabina Vohra-Miller, clinical pharmacologist