According to Canada Revenue Agency (CRA), vaccines are eligible medical expenses.
Note: Receipts are required to claim these costs and should be attached to your tax return if you file a paper copy by mail. If you file electronically, save all your receipts together in case the CRA requests these at a later date.
For more information, please visit the Canada Revenue Agency (CRA) website - Medical Expense
Thank you for choosing TurboTax.