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Getting flu shot annually has no impact on natural immunity, researchers find
BERGEN, Norway — Recent research revealed there is no negative to getting a flu shot each and every year. New findings debunked earlier studies that had suggested having repeated annual influenza vaccination can prevent natural immunity to the virus, and potentially increase the susceptibility to influenza illness in the event of a pandemic, or when the vaccine does not "match" the virus circulating in the community.
The findings were published in the Journal of Infectious Diseases.