We highly recommend flu shots for people who have heart disease. This is because, unless you are living with a neonate or an elderly person who is frail or has dementia, a slightly reduced risk of influenza is not that important. But if you have inflamed plaque in your arteries, the inflammation triggered by the flu might lead to plaque rupture, which is the cause of heart attacks and strokes. In a study published by the CMAJ, heart attack risk was nearly doubled during the three months after a flu.
There are many different flu viruses and they are constantly changing. That is why there is a new flu shot every year, and it is why we created an annual flu vial. The 2018-19 influenza vial is designed to help practitioners treat stress related to infections.
Note: These vials are not intended for diagnosing or treatment.