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Flu shot: Your best bet for avoiding influenza

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This year's annual flu shot will offer protection against four of the influenza viruses expected to be in circulation this flu season. High-dose flu vaccines will be available for adults age 65 and older, but these may not be available at all medical centers.

Influenza is a respiratory infection that can cause serious complications, particularly in young children, older adults and people with certain medical conditions. Getting an influenza vaccine — though not 100% effective — is the best way to prevent the misery of the flu and its complications. The Centers for Disease Control and Prevention (CDC) recommends annual flu vaccination for everyone age 6 months or older.

Here are the answers to common questions about flu shots: