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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 48

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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 December 2, 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 two specimens submitted by Scott & White in Temple (Bell County) during week 48. Scott and White also reported isolating influenza B from another Bell County resident.

Reports were received from all of the 11 Health Service Regions (HSRs) for week 48. All HSRs reported flu activity. HSRs 1, 2/3, and 7 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 48, three hospital laboratories in Texas reported conducting a total of 416 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. Both influenza A and B were detected. The same three laboratories also reported conducting a total of 463 tests for respiratory syncytial virus (RSV) with 144 positives (31%).

No institutional outbreaks or school closures were reported for week 48.

Fifty-six sentinel providers reported influenza-like illness (ILI) during week 48. Of all patient visits during this week, 4.28% 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 12/08/06
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 69 228 238 151 37 654 22191 2.94
2006-45 67 342 232 171 39 784 22177 3.53
2006-46 66 484 289 216 61 1050 23616 4.44
2006-47 69 420 201 225 89 935 19363 4.82
2006-48 56 380 213 300 64 957 22331 4.28

For more information on flu surveillance activities in the State of Texas, please visit the following website:

http://www.dshs.state.tx.us/idcu/disease/influenza/surveillance/



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

Chart



Statewide Influenza Activity For the Week Ending December 02, 2006

(MMWR Week 48)
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