What we know about the fourth COVID shot

Guest: Alex Boyd, Star reporter COVID-19 continues to circulate with the very transmittable Omicron variant BA.2 now dominant, just as most parts of the country have dropped mask mandates, restrictions are lifting and the future is anything but certain. While Omicron cases might be generally less severe for those who are vaccinated, vulnerable people are still at high risk and that's why a fourth round of the vaccine has become available for some. Toronto Star reporter Alex Boyd gives us an explainer on booster shots, how they might be rolled out and whether you or someone you know might need one. This episode was produced by Saba Eitizaz, Brian Bradley and Matt Hearn.