How long is the flu shot effective?

The flu shot is designed to offer protection for the duration of the flu season. Flu viruses change over time and our body’s immunity decreases between flu seasons. For these reasons, it is recommended that we get the influenza (flu) vaccine every year. Protective antibody levels are generally achieved within 2 to 3 weeks after vaccination.

The influenza vaccine is available at many locations throughout the community.

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This item was last modified on October 28, 2020

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