2006 - 2007 Texas Influenza Surveillance Information
Influenza Surveillance Report for MMWR Week 2
The flu activity level for the week ending January 13, 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 isolated influenza A/H1 in specimens from and Bexar, Tarrant, and Smith Counties collected during week 2. Influenza B (Malaysia/2506/2004-like) was isolated in a specimen from Tarrant County. Scott and White Laboratory reported culture confirmed flu A from Brazos, Grimes, and McLennan Counties and culture confirmed flu B from Milam County. The Air Force Institute for Operational Health (AFIOH) reported no culture confirmed flu during week 2.
Reports were received from all 11 Health Service Regions (HSRs) for week 2. HSRs 2/3, 7, 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 2.
Fifty-six sentinel providers reported influenza-like illness (ILI) for week 2. Of all patient visits during this week, 4.25% 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 01/18/07 |
| 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 |
66 |
349 |
258 |
181 |
50 |
838 |
16994 |
4.93 |
| 2006-52 |
62 |
460 |
199 |
264 |
104 |
1027 |
15992 |
6.42 |
| 2007-01 |
80 |
338 |
209 |
278 |
84 |
909 |
19748 |
4.60 |
| 2007-02 |
56 |
304 |
203 |
264 |
75 |
846 |
19873 |
4.25 |
Percentage of Visits Due to Influenza-Like Illness,
Texas Sentinel Providers Surveillance Network,
2006-2007 Season
Statewide Influenza Activity For the Week Ending January 13, 2007
(MMWR Week 2)
*Influenza activity level corresponds to current MMWR week only and does not reflect previous weeks’ activity.
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