Please note: The 2011-2012 influenza season began on October 2, 2011. For reports from the 2010-2011 season, please see http://www.dshs.state.tx.us/idcu/disease/influenza/surveillance/2011/.
During week 31 in Texas:
- No specimens tested by NREVSS laboratories in Texas were positive for influenza. No specimens were positive for influenza by PCR test or viral culture. All other positive tests were antigen detection tests.
- The percentage of visits for influenza-like illness as reported by ILINet providers was 2.35%.
- No influenza-associated pediatric deaths were reported.
- No outbreaks of influenza or ILI were reported.
- All Health Service Regions (HSRs) reported. HSR 2/3 reported an increased level of flu activity compared to week 30. For a map of Health Service Regions please visit the following website: http://www.dshs.state.tx.us/regions/state.shtm
Laboratory Results
The NREVSS system collects information on a variety of respiratory viruses including influenza virus, parainfluenza virus, respiratory syncytial virus (RSV), rhinovirus, human metapneumovirus (HMPV), and respiratory adenovirus. The results from week 31 are summarized below.
Other Respiratory Virus Results Reported by Texas NREVSS Laboratories
Virus
|
Number of Laboratories Testing
|
Tests Performed
|
Positive Tests
|
Percentage of Tests Positive
|
Influenza |
4
|
177
|
0
|
N/A
|
Adenovirus (respiratory) |
4
|
172
|
2
|
1.16%
|
HMPV |
4
|
112
|
0
|
N/A
|
Parainfluenza virus |
4
|
172
|
9
|
5.23%
|
Rhinovirus |
3
|
102
|
23
|
22.55%
|
RSV |
6
|
182
|
4
|
2.20%
|
U.S. Outpatient Influenza-like Illness Surveillance Network
Texas providers voluntarily report data to the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet) on patients with influenza-like illness (ILI) and total patients seen for any reason each week. The data from participating Texas ILINet providers are presented below.
Percentage of Visits for Influenza–Like Illness Reported by
the US Outpatient Influenza–Like Illness Surveillance Network (ILINet) in Texas
8/09/2012 09:29:00 AM
Week
|
# Reports
|
Age 0-4
|
Age 5-24
|
Age 25-49
|
Age 50-64
|
Age 65 +
|
Total ILI
|
Total Patients
|
% ILI
|
2011-40
|
70
|
188
|
297
|
202
|
58
|
18
|
763
|
27935
|
2.73%
|
2011-41
|
69
|
200
|
243
|
181
|
52
|
12
|
688
|
28089
|
2.45%
|
2011-42
|
71
|
202
|
305
|
196
|
62
|
19
|
784
|
26341
|
2.98%
|
2011-43
|
70
|
227
|
306
|
225
|
50
|
17
|
825
|
28150
|
2.93%
|
2011-44
|
70 |
206 |
300 |
187 |
56 |
13 |
762 |
27888 |
2.73% |
2011-45
|
71 |
241 |
305 |
234 |
53 |
24 |
857 |
28619 |
2.99% |
2011-46
|
67 |
234 |
318 |
250 |
71 |
24 |
897 |
28711 |
3.12% |
2011-47
|
69 |
215 |
232 |
197 |
48 |
23 |
715 |
22669 |
3.15% |
2011-48
|
66 |
238 |
259 |
207 |
66 |
22 |
792 |
26510 |
2.99% |
2011-49
|
65 |
238 |
196 |
134 |
39 |
25 |
632 |
20322 |
3.11% |
2011-50
|
65 |
228 |
256 |
198 |
62 |
20 |
764 |
24240 |
3.15% |
2011-51
|
62 |
253 |
213 |
207 |
66 |
30 |
769 |
22055 |
3.49% |
2011-52 |
64 |
196 |
194 |
209 |
83 |
16 |
698 |
21310 |
3.28% |
2012-01 |
70 |
227 |
229 |
214 |
48 |
18 |
736 |
26030 |
2.83% |
2012-02 |
71 |
253 |
290 |
198 |
72 |
33 |
846 |
26555 |
3.19% |
2012-03 |
69 |
272 |
327 |
238 |
49 |
21 |
907 |
26655 |
3.40% |
2012-04 |
71 |
240 |
362 |
210 |
67 |
11 |
890 |
26829 |
3.32% |
2012-05 |
69 |
318 |
383 |
241 |
72 |
17 |
1031 |
24933 |
4.14% |
2012-06 |
69 |
295 |
448 |
273 |
63 |
20 |
1099 |
30879 |
3.56% |
2012-07 |
70 |
328 |
483 |
325 |
79 |
18 |
1233 |
28901 |
4.27% |
2012-08 |
69 |
376 |
421 |
210 |
67 |
29 |
1103 |
21273 |
5.18% |
2012-09 |
68 |
287 |
540 |
420 |
104 |
39 |
1390 |
28914 |
4.81% |
2012-10 |
66 |
235 |
389 |
195 |
58 |
32 |
909 |
19720 |
4.61% |
2012-11 |
66 |
302 |
430 |
373 |
98 |
30 |
1233 |
22958 |
5.37% |
2012-12 |
66 |
291 |
422 |
288 |
75 |
30 |
1106 |
26994 |
4.10% |
2012-13 |
63 |
220 |
444 |
281 |
68 |
13 |
1026 |
25649 |
4.00% |
2012-14 |
61 |
239 |
405 |
217 |
46 |
14 |
921 |
24524 |
3.76% |
2012-15 |
60 |
210 |
373 |
201 |
37 |
11 |
832 |
25684 |
3.24% |
2012-16 |
59 |
212 |
354 |
189 |
47 |
20 |
822 |
25616 |
3.21% |
2012-17 |
58 |
172 |
327 |
189 |
41 |
17 |
746 |
24935 |
2.99% |
2012-18 |
56 |
179 |
334 |
152 |
33 |
21 |
719 |
22668 |
3.17% |
2012-19 |
56 |
190 |
308 |
178 |
44 |
17 |
737 |
23822 |
3.09% |
2012-20 |
54 |
194 |
312 |
170 |
45 |
22 |
743 |
21211 |
3.50% |
2012-21 |
52 |
168 |
341 |
206 |
35 |
19 |
769 |
23362 |
3.29% |
2012-22 |
48 |
144 |
263 |
148 |
38 |
18 |
611 |
20557 |
2.97% |
2012-23 |
46 |
167 |
194 |
127 |
37 |
17 |
542 |
21719 |
2.50% |
2012-24 |
47 |
152 |
201 |
125 |
33 |
7 |
518 |
21132 |
2.45% |
2012-25 |
45 |
150 |
196 |
143 |
30 |
18 |
537 |
20168 |
2.66% |
2012-26 |
46 |
138 |
210 |
169 |
43 |
12 |
572 |
20328 |
2.81% |
2012-27 |
43 |
100 |
180 |
145 |
43 |
17 |
485 |
17425 |
2.78% |
2012-28 |
38 |
104 |
172 |
123 |
27 |
9 |
435 |
18420 |
2.36% |
2012-29 |
37 |
101 |
160 |
127 |
29 |
10 |
427 |
17542 |
2.43% |
2012-30 |
35 |
92 |
144 |
112 |
28 |
11 |
387 |
16439 |
2.35% |
2012-31 |
34 |
113 |
176 |
112 |
32 |
11 |
444 |
18874 |
2.35% |

National Influenza Activity Map
The current U.S. flu weekly report (FluView) may be found at http://www.cdc.gov/flu/weekly/fluactivity.htm.
International Influenza Activity Map
The CDC compiles information from several sources and releases an international influenza summary. This report can be found at http://www.cdc.gov/flu/international/activity.htm.
Texas Influenza Activity Map
1Influenza activity level corresponds to current MMWR week only and does not reflect previous weeks' activity.
2The majority of influenza cases are not reportable by law to the Texas Department of State Health Services. This map contains data from sentinel sites and does not represent all influenza cases in the state.
3Positive laboratory results are reported according to specimen collection date or date received in the lab if the former is unknown.
2011 - 2012 Texas Influenza Surveillance Information --- Flu Reports
For the week ending: 10/08/11; 10/15/11; 10/22/11; 10/29/11; 11/05/11; 11/12/11;
11/17/11; 11/24/11; 12/03/11; 12/11/11; 12/18/11; 12/25/11; 12/31/11; 1/7/12;
1/14/12; 1/21/12; 1/28/12; 2/4/12; 2/11/12; 2/18/12; 2/25/12; 3/3/12; 3/10/12;
3/17/12; 3/24/12; 3/31/12; 4/7/12; 4/14/12; 4/21/12; 4/28/12; 5/5/12; 5/12/12;
5/19/12; 5/26/12; 6/2/12; 6/9/12; 6/16/12; 6/23/12; 6/30/12; 7/7/12; 7/14/12;
7/21/12; 7/28/12; 8/4/12;
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