Global News Hour at 6 BC June 22 2021 8:38pm 02:16 B.C. health officials reassure people about safety and efficacy of AstraZeneca vaccine B.C. health officials are reassuring people about the safety and efficacy of the AstraZeneca vaccine, following a drop in rates sparked by mixed messages. Aaron McArthur reports. COVID-19: AstraZeneca appointment cancellations soar in B.C. following NACI guidance REPORT AN ERROR Responsive site?