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    Infectious Disease Control Unit
    Mail Code: 1960
    PO BOX 149347 - Austin, TX 78714-9347
    1100 West 49th Street, Suite T801
    Austin, TX 78714

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


    E-mail

week 46

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Surveillance

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Influenza Influenza
(Flu)
ICD-9 487; ICD-10 J10,11
Related Topics: Protecting Yourself During the Cold and Flu Season, Avian Flu, Vaccine Preventable Diseases, Asthma and SARS

2006 - 2007 Texas Influenza Surveillance Information

The flu activity level for the week ending November 18, 2006 is “sporadic”. Sporadic activity indicates that isolated reports of lab-confirmed flu along with influenza-like illness (ILI) have been reported.

No influenza was isolated by the DSHS laboratory during week 46.

Reports were received from all of the 11 Health Service Regions (HSRs) for week 46. All HSRs reported some flu activity. None of the 11 HSRs reported an increase in flu activity from the previous week. For a map of Health Service Regions, please visit the following website:

http://www.dshs.state.tx.us/regions/state.shtm

During week 46, five hospital laboratories across Texas reported conducting a total of 524 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. Five positive antigen tests for influenza A were reported. The same five laboratories also reported conducting a total of 528 tests for respiratory syncytial virus (RSV) with 123 positives (23%).

No institutional outbreaks or school closures were reported for week 46.

Sixty-three sentinel providers reported influenza-like illness (ILI) during week 46. Of all patient visits during this week, 4.47% 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 11/22/06
Week # Reporting Age 0-4 Age 5-24 Age 25-64 Age over 64 Total ILI Total Patients % ILI
2006-40 59 71 120 65 09 265 15168 1.74
2006-41 57 104 126 93 14 337 16135 2.08
2006-42 76 250 188 154 44 636 24995 2.54
2006-43 75 207 176 149 20 552 22878 2.41
2006-44 68 228 238 151 37 654 22117 2.95
2006-45 65 342 230 171 39 782 21968 3.55
2006-46 63 484 286 216 61 1047 23404 4.47


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

Chart



Statewide Influenza Activity For the Week Ending November 18, 2006

(MMWR Week 46)
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.


 

Texas Department of State Health Services - Infectious Disease Control Unit
1100 West 49th Street, Suite T801, Mail Code: 1960 PO BOX 149347 - Austin, TX 78714-9347
(512) 458-7676 - Fax: (512) 458-7616 - E-Mail

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Last updated May 19, 2010