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    Infectious Disease Prevention Section
    Mail Code: 1927
    PO BOX 149347 - Austin, TX 78714-9347
    1100 West 49th Street, Suite G401
    Austin, TX 78714

    Phone: (512) 776-7676
    Fax: (512) 776-7616


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Week 49

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Surveillance Reports

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2006-2007 Texas Influenza Surveillance Information

2006-2007 Season Summary

Influenza Surveillance Report for MMWR Week 49

The flu activity level for the week ending December 9, 2006 is “sporadic”. Sporadic activity indicates that isolated reports of lab-confirmed flu along with influenza-like illness (ILI) have been reported.

The DSHS laboratory isolated influenza A/H1 from a specimen from Galveston during week 49. Scott and White reported isolating influenza A from a Bell County resident, and Texas Children’s Hospital in Houston reported isolating influenza A from 2 specimens collected during week 49.

Reports were received from all of the 11 Health Service Regions (HSRs) for week 49. All HSRs reported flu activity. HSRs 1, 7, and 11 reported an increase in flu activity from the previous week. For a map of Health Service Regions, please visit the following website:

Texas Health Service Regions Map

During week 49, four hospital laboratories in Texas reported conducting a total of 531 influenza tests (both antigen and culture) to the National Respiratory and Enteric Virus Surveillance System (NREVSS) sponsored by the Centers for Disease Control and Prevention. A small number of influenza A and B positives (by rapid test) were reported. The same four laboratories also reported conducting a total of 478 tests for respiratory syncytial virus (RSV) with 126 positives (26%).

No institutional outbreaks or school closures were reported for week 49.

Seventy-two sentinel providers reported influenza-like illness (ILI) during week 49. Of all patient visits during this week, 4.49% were due to ILI. 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 12/15/06    
Week # Reporting Age 0-4 Age 5-24 Age 25-64 Age over 64 Total ILI Total Patients % ILI
2006-40 60 71 120 65 09 265 15228 1.74
2006-41 58 104 126 93 14 337 16202 2.07
2006-42 76 250 187 154 44 635 24995 2.54
2006-43 76 207 176 149 20 552 22938 2.40
2006-44 71 228 238 151 37 654 22230 2.94
2006-45 70 342 232 171 39 784 22301 3.51
2006-46 69 484 289 216 61 1050 23661 4.43
2006-47 74 425 201 225 91 942 19581 4.81
2006-48 71 415 244 278 65 1002 23512 4.26
2006-49 72 343 276 278 88 985 21934 4.49

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Percentage of Visits Due to Influenza-Like Illness,
Texas Sentinel Providers Surveillance Network, 2006-2007 Season


Chart
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Statewide Influenza Activity For the Week Ending December 09, 2006 (MMWR Week 49)

Influenza in Texas Map

Map Legend 1                  Map Legend 2

*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, 12/16/06, 12/23/06, 12/30/06, 01/06/07,
01/13/07, 01/20/07, 01/27/07, 02/10/07, 02/17/07, 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 September 23, 2021