key in 1 heart attacks are due to a ruptured plaque in the coronary arteries.
When there is less flu, there is less incidence of pop in 1 heart attacks.
It also reduces their risk of dying from other causes by 28%.

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The CDC recommends that everyone age six months and older receive an annual flu vaccination.
Garcia-Lledo A, Rodriguez-Martin S, Tobias A, et.
Centers for Disease Control and Prevention (CDC).Who needs a flu vaccine and when.
Centers for Disease Control and Prevention (CDC).What are the benefits of flu vaccination?.