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    Mail Code: 1927
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Influenza Surveillance Report for MMWR Week 7

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Surveillance Reports

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2006-2007 Texas Influenza Surveillance Information

2006-2007 Season Summary

The flu activity level for the week ending February 17, 2007 is widespread. This is the fourth consecutive week of the season that widespread activity has been reported. Widespread activity indicates that at least half of the regions are experiencing an increase in ILI and lab-confirmed (by culture) flu has been identified in those regions.

A/H1A/H3B/Malaysia
Dallas Shelby Dallas Bexar
El Paso Starr   Dallas
Jim Wells Tarrant   Nacogdoches
Nacogdoches Travis   Travis
Nueces Trinity   Trinity
Potter   Travis
Scott and White Laboratory reported culture confirmed influenza A from Bell, Brazos, Coryell, Falls, Grimes, Hill, Leon, McLennan, Milam and Williamson Counties and culture confirmed influenza B from Bell, and McLennan Counties. The Air Force Institute for Operational Health (AFIOH) reported culture confirmed flu A at Lackland Air Force Base and culture confirmed flu A and B at Sheppard Air Force Base during week 7.

Several school closures due to influenza were reported during week 7. Schools in Hardeman, Henderson, Van Zandt, and Wilbarger Counties reported closures due to high absenteeism rates most likely associated with flu.

Weekly Influenza Activity Estimates Reported
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Sixty-three sentinel providers reported influenza-like illness (ILI) for week 7. Of all patient visits during this week, 7.24% were due to ILI. This is the highest of the season to date. The baseline for Texas is 3.71%. The baseline is the mean percentage of patient visits for ILI during non-influenza weeks for the previous three seasons plus two standard deviations.

Percentage of Influenza-Like Illness (ILI) Reported by Sentinel Providers in Texas as of 2/26/07                  
Week# ReportingAge 0-4Age 5-24Age 25-64Age over 64Total ILITotal Patients% ILI
2006-40 61 71 120 65 9 265 15479 1.71
2006-41 59 104 126 93 14 337 16457 2.04
2006-42 77 250 187 154 44 635 25223 2.51
2006-43 77 219 188 153 20 580 23296 2.48
2006-44 72 235 254 164 39 692 22504 3.07
2006-45 71 356 249 182 42 829 22660 3.65
2006-46 71 495 312 228 62 1097 24033 4.56
2006-47 76 450 277 237 95 1009 19958 5.05
2006-48 78 442 275 302 70 1089 24495 4.44
2006-49 84 374 325 283 96 1078 24229 4.44
2006-50 72 387 381 252 80 1100 22227 4.94
2006-51 67 349 259 187 50 845 17402 4.85
2006-52 63 460 199 264 104 1027 16039 6.40
2007-01 86 343 219 284 84 930 20681 4.49
2007-02 70 329 244 284 84 941 21612 4.35
2007-03 69 242 223 127 19 611 15135 4.03
2007-04 79 518 475 283 106 1382 24502 5.64
2007-05 81 557 575 375 62 1569 25569 6.13
2007-06 62 445 648 385 39 1517 21504 7.05
2007-07 63 561 649 411 59 1680 23204 7.24
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Percentage of Visits Due to Influenza-Like Illness
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Influenza in Texas Map

*Influenza activity level corresponds to current MMWR week only and does not reflect previous weeks' activity.

2006-2007 Texas Influenza Surveillance Information - Flu Reports

For the week ending:
10/07/06, 10/14/06, 10/21/06, 10/28/06, 11/04/06, 11/11/06, 11/18/06, 12/02/06, 12/09/06, 12/16/06, 12/23/06, 12/30/06
01/06/07, 01/13/07, 01/20/07, 01/27/07, 02/10/07, 02/24/07, 03/03/07, 03/10/07, 03/17/07, 03/24/07, 03/31/07, 04/07/07,
04/14/07, 05/05/07

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Last updated October 5, 2021