No: If it has been more than 5 years since your last tetanus shot, you should get a booster. A tetanus vaccine is effective for 10 years for a clean wound and 5 years for a dirty wound. A rusty nail would be dirty and you should have a tetanus shot again. ...Read more.
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Mike Kelleher, director of the White House Office of Correspondence, selects letters from the public that are included in President Obamaâs briefing book. Credit Andrew Councill for The New York Times