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Monitoring health problems after vaccination is
essential to ensure the United States continues to have the safest, most
effective vaccine supply in history.
CDC's Immunization Safety Office identifies
possible vaccine side effects and conducts studies to determine whether
a health problem is caused by a specific vaccine. |
In the News
H1N1
Flu Update: The outbreak of disease in people caused by a new influenza virus of swine
origin continues to grow in the United States and internationally.
CDC is issuing and updating interim guidance daily in response to the
rapidly evolving situation.
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