By now many people assume we'll be getting annual covid boosters for the rest of our lives. That's possible, but there are other possibilities, too. In the past two years we've learned so much about how to rapidly create and deliver vaccines that there are projects in front of us that could offer much more optimistic futures.

At McMaster University, one of them involves no needles at all... and might eliminate the need for yearly updates.

GUEST: Dr. Matthew Miller, Associate Professor in the Department of Biochemistry and Biomedical Sciences at McMaster University

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