Omar Khan, assistant professor at the Institute of Biomedical Engineering at the University of Toronto, explains how boosters work and how they help fight against the newer COVID-19 variants.
Subscribe to CTV News to watch more videos:
Connect with CTV News:
For the latest news visit:
For a full video offering visit the CTV News Network:
CTV News on Facebook:
CTV News on Twitter:
Watch CTV News on Twitter:
CTV News on Google+:
CTV News on Instagram:
CTV News on Pinterest:
CTV News is Canada's most-watched news organization both locally and nationally, and has a network of national, international, and local news operations.