Health Canada extends expiry of thousands of AstraZeneca shots by an additional month
TORONTO — Health Canada says it is extending the expiry date for thousands of Oxford-AstraZeneca COVID-19 vaccine doses by a month.
The federal department says it made the decision to help use up existing doses and stressed the move is backed by scientific evidence.
Health Canada says the vaccine manufacturer made a submission earlier this week which supported extending the expiry date for two lots of vaccine from May 31 to July 1.
It says that submission included “stability and mathematical modelling data” that showed the doses would still be safe and effective for seven months rather than the original six.