Caroline Colijn

Experts say Canada needs to develop a robust system to detect COVID-19 activity in the absence of wide-scale PCR testing.

As Canada confirms its first cases of the Omicron COVID-19 variant, scientists say banning travellers from southern African countries in an effort to curb its importation is wishful thinking that could do more harm than good.

Essential workers who are more likely to contract and transmit COVID-19 should be prioritized for immunization with the Oxford-AstraZeneca vaccine now that a national panel is not recommending it for seniors, two experts say.