Content on this page was developed during the 2009-2010 H1N1 pandemic and has not been updated.
- The H1N1 virus that caused that pandemic is now a regular human flu virus and continues to circulate seasonally worldwide.
- The English language content on this website is being archived for historic and reference purposes only.
- For current, updated information on seasonal flu, including information about H1N1, see the CDC Seasonal Flu website.
H1N1 Flu (Swine Flu): Past Situation Updates
For the current update, please see the Novel H1N1 Flu Situation Update page.
- August 3, 2010
- July 26, 2010
- July 19, 2010
- July 2, 2010
- June 25, 2010
- June 18, 2010
- June 11, 2010
- June 4, 2010
- May 28, 2010
- May 14, 2010
- May 7, 2010
- April 30, 2010
- April 23, 2010
- April 16, 2010
- April 9, 2010
- April 2, 2010
- March 26, 2010
- March 19, 2010
- March 12, 2010
- March 5, 2010
- February 26, 2010
- February 19, 2010
- February 12, 2010
- February 5, 2010
- January 29, 2010
- January 15, 2010
- January 08, 2010
- January 04, 2010
- December 18, 2009
- December 11, 2009
- December 04, 2009
- November 27, 2009
- November 20, 2009
- November 13, 2009
- November 06, 2009
- October 30, 2009
- October 23, 2009
- October 16, 2009
- October 9, 2009
- October 2, 2009
- September 25, 2009
- September 18, 2009
- September 11, 2009
- September 4, 2009
- August 28, 2009
- August 21, 2009
- August 14, 2009
- August 7, 2009
- July 31, 2009
- July 24, 2009
- July 17, 2009
- July 10, 2009
- July 2, 2009
- June 26, 2009
- June 19, 2009
- June 12, 2009
- June 5, 2009
- June 1, 2009
- May 29, 2009
- May 27, 2009
- May 25, 2009
- May 22, 2009
- May 21, 2009
- May 20, 2009
- May 19, 2009
- May 18, 2009
- May 15, 2009
- May 14, 2009
- May 13, 2009
- May 12, 2009
- May 11, 2009
- May 10, 2009
- May 9, 2009
- May 8, 2009
- May 7, 2009
- May 6, 2009
- May 5, 2009
- May 4, 2009
- May 3, 2009
- May 2, 2009
- May 1, 2009
- April 30, 2009
- April 29, 2009
- April 28, 2009
- April 27, 2009
- April 26, 2009
- April 25, 2009
- April 24, 2009
- April 23, 2009
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