The federal government’s decision to not provide Novavax’s COVID-19 vaccine this respiratory virus season raises health equity concerns, experts and advocates say, as some Canadians look to the U.S. to get the shot.

The Public Health Agency of Canada said it won’t provide the protein-based vaccine called Nuvaxovid because the manufacturer required a minimum order that far exceeds last year’s uptake of the vaccine.

The health agency said 125,000 Nuvaxovid doses were ordered in 2023, but only 5,529 were administered. This fall, it will only supply provinces and territories with the reformulated Pfizer-BioNTech and Moderna mRNA COVID-19 vaccines.

But some Canadians who say they are immunocompromised and have had adverse reactions to the mRNA vaccines are calling the decision unfair.