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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 3

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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 3

The flu activity level for the week ending January 20, 2007 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 has isolated the first influenza A/H3 of the season in a specimen from Collin County. This specimen was collected from a 4 year-old who had returned from Thailand three days previously. Influenza A/H1 was isolated in specimens from Starr and Tarrant Counties. No influenza B was isolated during week 3. Scott and White Laboratory reported culture confirmed influenza A from Brazos, Bosque, Grimes, and McLennan Counties and culture confirmed influenza B from McLennan County. The Air Force Institute for Operational Health (AFIOH) reported no culture confirmed flu during week 3.

Reports were received from all 11 Health Service Regions (HSRs) for week 3. HSRs 1, 7, 9/10 and 11 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

No institutional outbreaks or school closures were reported for week 3

Chart

Sixty-eight sentinel providers reported influenza-like illness (ILI) for week 3. Of all patient visits during this week, 4.03% 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 2/2/07
Week # Reporting Age 0-4 Age 5-24 Age 25-64 Age over 64 Total ILI Total Patients % ILI
2006-40 61 71 120 65 9 265 15479 1.71
2006-41 59 104 126 93 14 337 16457 2.04
2006-42 77 250 187 154 44 635 25223 2.51
2006-43 77 219 188 153 20 580 23296 2.48
2006-44 72 235 254 164 39 692 22504 3.07
2006-45 71 356 249 182 42 829 22660 3.65
2006-46 71 495 312 228 62 1097 24033 4.56
2006-47 76 450 277 237 95 1009 19958 5.05
2006-48 78 442 275 302 70 1089 24495 4.44
2006-49 84 374 325 283 96 1078 24229 4.44
2006-50 72 387 381 252 80 1100 22227 4.94
2006-51 67 349 259 187 50 845 17402 4.85
2006-52 63 460 199 264 104 1027 16039 6.40
2007-01 86 343 219 284 84 930 20681 4.49
2007-02 70 329 244 284 84 941 21612 4.35
2007-03 68 242 223 127 19 611 15124 4.03


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

Chart



Statewide Influenza Activity For the Week Ending January 20, 2007

(MMWR Week 3)
Influenza in Texas Map

*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