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The translation for this page is being updated due to recent changes in the English content. You may view the English version by using the prompt below or return at a later time when this translation has been fully updated (usually within 24 hours). Please call 1-800-CDC-INFO if you have questions about 2009 H1N1 influenza that aren't answered on this site. Thank you for your patience.

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  • Centers for Disease Control and Prevention
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    Atlanta, GA 30333
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