Health Canada Adds Warning of Very Rare, Serious Condition as Potential Side Effect

Vials of the AstraZeneca COVID-19 vaccine sit in a fridge at the local vaccine center in Ebersberg near Munich, Germany. March, 22, 2021. （The Associated Press/Matthias Schrader/File）

OTTAWA—Health Canada is updating the label for the Oxford-AstraZeneca and COVISHIELD COVID-19 vaccines to add capillary leak syndrome as a potential side-effect.

The agency is also including a warning for patients with a history of the ailment to not get those vaccines.