The flu is a contagious viral infection of the nose, throat, and lungs. Known in medical circles as influenza, its incidence is higher in children and younger adults than older individuals, although influenza-associated illness and death increase with age. That is particularly true for people with underlying medical conditions such as chronic heart disease. Recent research reveals a surprising link between heart disease and the flu. And this means the flu shot could be an important part of heart disease prevention.
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