Geographic Spread of Influenza as Assessed by State and Territorial Epidemiologists:
During week 13 the following influenza activity was reported:
During week 13 the following influenza activity was reported:
- Widespread influenza activity was reported by four states (Alabama, New York, Virginia, and Washington).
- Regional influenza activity was reported by 18 states (Alaska, Arizona, California, Colorado, Connecticut, Hawaii, Idaho, Kentucky, Montana, Nevada, New Hampshire, New Jersey, North Carolina, North Dakota, Oregon, Pennsylvania, Rhode Island, and Tennessee).
- Local influenza activity was reported by 20 states (Florida, Illinois, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Mexico, Ohio, South Carolina, South Dakota, Texas, Utah, Vermont, Wisconsin, and Wyoming).
- Sporadic activity was reported by the District of Columbia and seven states (Arkansas, Delaware, Georgia, Indiana, Mississippi, Oklahoma, and West Virginia).
- One state did not report (Nebraska).
- Week 12 (ending March 28, 2009)
- Week 11 (ending March 21, 2009)
- Week 10 (ending March 14, 2009)
- Week 9 (ending March 7, 2009)
- Week 8 (ending February 28, 2009)
- Week 7 (ending February 21, 2009)
- Week 6 (ending February 14, 2009)
- Week 5 (ending February 7, 2009)
- Week 4 (ending January 31, 2009)
- Week 3 (ending January 24, 2009)
- Week 2 (ending January 17, 2009)
- Week 1 (ending January 10, 2009)
- Week 53 (ending January 3, 2009)
- Week 52 (ending December 27, 2008)
- Week 51 (ending December 20, 2008)
- Week 50 (ending December 13, 2008)
- Week 49 (ending December 6, 2008)
- Week 48 (ending November 29, 2008)
- Week 47 (ending November 22, 2008)
- Week 46 (ending November 15, 2008)
- Week 45 (ending November 8, 2008)
- Week 44 (ending November 1, 2008)