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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 6

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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
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2005 - 2006 Texas Influenza Surveillance Information

The flu activity level for the week ending February 11th, 2006 is widespread. Flu activity has been reported in all regions of the state; however, activity appears to be decreasing across the state.

Reports were received for all 11 Health Service Regions (HSRs) for week 6. No increase in flu activity was reported in any of the 11 HSRs. Activity remained about the same in HSRs 2/3, 7, 8 and 11. A decrease in flu activity was reported in HSRs 1, 4/5N, and 6/5S. For a map of Health Service Regions, please visit the following website:

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

During week 6, culture confirmed influenza A was identified in Bell, Brazos, Burleson, Coryell, Dallas, Erath, Falls, Harris, Hill, Leon, Lubbock, McLennan, and Milam Counties. The majority of flu cultured by the DSHS lab continues to be A/H3N2. The Centers for Disease Control and Prevention (CDC) have further characterized the influenza isolates submitted by DSHS as A/California/07/2004-like (H3N2) and A/New York/55/2004-like (H3N2). A/California/07/2004-like (H3N2) is one of the A components of the current vaccine. A/New York/55/2004-like (H3N2) is antigenically equivalent to A/California/07/2004-like (H3N2).

Culture confirmed influenza B was identified in Brazos, Dallas, McLennan, and Travis Counties. Dallas County continues to see the most culture confirmed influenza B.

No institutional outbreaks or school closures have been reported.

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/


Data from the Sentinel Provider Surveillance Network (SPSN) indicates a decrease in influenza-like illness (ILI) for the third consecutive week.

PERCENTAGE OF VISITS FOR INFLUENZA-LIKE-ILLNESS REPORTED BY SENTINEL PROVIDERS IN TEXAS

Week

# Reporting

Age 0-4

Age 5-24

Age 25-64

Age over 64

Total ILI

Total Patients

% ILI

2005-48

43

144

163

128

9

444

15657

2.83

2005-49

39

118

181

116

3

418

12894

3.24

2005-50

45

160

268

190

13

631

14410

4.37

2005-51

44

146

149

61

7

363

7797

4.65

2005-52

39

219

232

363

29

843

10140

8.31

2006-01

40

177

201

297

46

721

11399

6.32

2006-02

55

229

359

269

36

893

15487

5.76

2006-03

47

297

399

287

28

1011

13520

7.47

2006-04

63

290

451

288

40

1069

16822

6.35

2006-05

55

238

382

253

43

916

15521

5.90

2006-06

52

203

327

213

23

766

14022

5.46





Percentage of Physician Visits Due to Influenza-Like Illness, Texas Sentinel Providers Surveillance Network 2005-2006 Season


Statewide Influenza Activity For the Week Ending February 11, 2006

(MMWR Week 6)
influenza021106

*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 October 26, 2010