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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 50

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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

Influenza Surveillance Report for MMWR Week 50

The flu activity level for the week ending December 16, 2006 is “regional”. Regional activity indicates that 2 or more but less than half of the regions are experiencing an increase in ILI and lab-confirmed (by culture) flu has been identified in those regions.

The DSHS laboratory isolated influenza from 5 specimens collected during week 50. Influenza A/H1 was isolated in specimens from Tarrant, Bell, and Grayson Counties. Influenza B (Malaysia/2506/2004-like) was isolated in a specimen from Starr County. Scott and White reported isolating flu A from a Bell County resident and a Brazos County resident, and Texas Children’s Hospital in Houston reported isolating flu B. HSR 1 reported culture confirmed flu A from Lubbock County. The Air Force Institute for Operational Health (AFIOH) reported culture confirmed flu A in recruits at Dyess Air Force Base (Taylor County) during week 50.

Reports were received from all of the 11 Health Service Regions (HSRs) for week 50. All HSRs reported flu activity. HSRs 4/5N, 7, and 8 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

 

Data from the National Respiratory and Enteric Virus Surveillance System (NREVSS) for week 50 is not available at this time.

No institutional outbreaks or school closures were reported for week 50.

Fifty-eight sentinel providers reported influenza-like illness (ILI) for week 50. Of all patient visits during this week, 4.80% 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 12/22/06
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 76 219 188 153 20 580 23063 2.51
2006-44 71 235 254 164 39 692 22374 3.09
2006-45 70 356 249 182 42 829 22458 3.69
2006-46 69 495 312 228 62 1097 23785 4.61
2006-47 74 450 227 236 95 1008 19720 5.11
2006-48 75 442 275 301 70 1088 24116 4.51
2006-49 78 374 325 282 96 1077 23678 4.54
2006-50 58 350 345 230 77 1002 20863 4.80

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 16, 2006

(MMWR Week 50)
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