San Francisco raises Tesla 'self-driving' safety concerns as public test nears

A sign bearing the company logo is displayed outside a Tesla store in Cherry Creek Mall in Denver, Feb. 9, 2019. (AP Photo/David Zalubowski, File) A sign bearing the company logo is displayed outside a Tesla store in Cherry Creek Mall in Denver, Feb. 9, 2019. (AP Photo/David Zalubowski, File)

CTVNews.ca Top Stories

Why COVID-19 boosters weren't tweaked to better match variants

More COVID-19 booster shots may be on the way -- but when it's your turn, you'll get an extra dose of the original vaccine, not one updated to better match the extra-contagious delta variant. And that has some experts wondering if the booster campaign is a bit of a missed opportunity to target delta and its likely descendants.

STAY CONNECTED