2010 - 2011 Texas Influenza Surveillance Information
During week 22 in Texas:
- One specimen tested by NREVSS laboratories in Texas was positive for influenza A (not subtyped) by antigen detection test.
- The percentage of visits for influenza-like illness (ILI) as reported by ILINet providers in Texas was below the state and HHS regional baselines.
- No influenza-associated pediatric deaths were reported.
- No influenza or ILI outbreaks were reported.
HSRs 1, 2/3, 7, 8, 9/10, and 11 reported a decreased level of flu activity compared to week 21. Region 4/5N did not report. For a map of Health Service Regions please visit the following website:
http://www.dshs.state.tx.us/regions/state.shtm.
Laboratory Results
The National Respiratory and Enteric Virus Surveillance System (NREVSS) collects information on a variety of respiratory viruses including influenza, parainfluenza, respiratory syncytial virus (RSV), rhinovirus, human metapneumovirus (HMPV), and respiratory adenovirus. The results from week 22 are summarized below.
Testing results of other respiratory viruses reported through NREVSS
Virus |
Number of Laboratories Testing |
Tests Performed |
Positive Tests |
Percentage of Tests Positive |
Influenza |
7 |
146 |
1 |
0.68% |
Adenovirus (respiratory) |
3 |
83 |
2 |
2.41% |
HMPV |
2 |
60 |
4 |
6.67% |
Parainfluenza |
3 |
83 |
0 |
0.00% |
Rhinovirus |
2 |
60 |
18 |
30.00% |
RSV |
10 |
168 |
1 |
0.60% |
U.S. Outpatient Influenza-like Illness Surveillance Network
Thirty-eight providers in Texas reported data to the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet) (formerly known as the U.S. Influenza Sentinel Provider Surveillance System) on patients with influenza-like illness (ILI) and total patients seen for any reason during week 22. Of the 38 providers who saw patients, 13 (34%) saw at least one patient with ILI. Of all patient visits during this week, 1.97% were due to ILI.
Percentage of Visits for Influenza-like Illness reported by the
US Outpatient Influenza-like Illness Surveillance Network (ILINet) in Texas
(6/10/2011 7:50:00 AM)
Week
|
# Reporting |
Age 0-4
|
Age 5-24 |
Age 25-49 |
Age 50-64 |
Age 65 and older |
Total ILI |
Total Patients |
% ILI |
2011-40 |
97 |
375 |
375 |
209 |
55 |
27 |
1041 |
37881 |
2.75% |
2011-41 |
96 |
400 |
389 |
193 |
53 |
19 |
1054 |
37677 |
2.80% |
2011-42
|
97
|
374
|
443
|
202
|
36
|
22
|
1077
|
38758
|
2.78%
|
2011-43
|
95
|
395
|
429
|
188
|
59
|
37
|
1109
|
37514
|
2.96%
|
2011-44
|
98
|
398
|
525
|
191
|
66
|
29
|
1209
|
38431
|
3.15%
|
2011-45
|
96
|
437
|
553
|
189
|
67
|
35
|
1281
|
38838
|
3.30%
|
2011-46
|
94
|
372
|
471
|
181
|
46
|
35
|
1105
|
36696
|
3.01%
|
2011-47
|
89
|
429
|
309
|
153
|
36
|
27
|
954
|
27258
|
3.50%
|
2011-48
|
92
|
504
|
438
|
199
|
75
|
34
|
1250
|
36252
|
3.45%
|
2011-49
|
92
|
306
|
540
|
219
|
43
|
24
|
1132
|
35119
|
3.22%
|
2011-50
|
87
|
395
|
605
|
218
|
67
|
27
|
1312
|
34133
|
3.84%
|
2011-51
|
80
|
408
|
555
|
293
|
85
|
42
|
1383
|
26344
|
5.25%
|
2011-52
|
80
|
398
|
372
|
341
|
89
|
51
|
1251
|
28940
|
4.32%
|
2011-01
|
89
|
499
|
523
|
309
|
80
|
55
|
1466
|
33532
|
4.37%
|
2011-02
|
88
|
576
|
772
|
366
|
99
|
57
|
1870
|
34602
|
5.40%
|
2011-03
|
91
|
680
|
1032
|
491
|
145
|
54
|
2402
|
39161
|
6.13%
|
2011-04
|
96
|
827
|
1441
|
678
|
162
|
64
|
3172
|
42635
|
7.44%
|
2011-05
|
94
|
613
|
1335
|
658
|
148
|
63
|
2817
|
33849
|
8.32%
|
2011-06
|
91
|
676
|
1469
|
884
|
196
|
55
|
3280
|
40351
|
8.13%
|
2011-07
|
87
|
738
|
2007
|
1138
|
328
|
84
|
4295
|
42872
|
10.02%
|
2011-08
|
89
|
777
|
1462
|
736
|
178
|
57
|
3210
|
39561
|
8.11%
|
2011-09
|
86
|
575
|
879
|
454
|
127
|
107
|
2142
|
38255
|
5.60%
|
2011-10
|
81
|
452
|
741
|
329
|
82
|
19
|
1623
|
34850
|
4.66%
|
2011-11
|
84
|
348
|
423
|
301
|
77
|
24
|
1173
|
31144
|
3.77%
|
2011-12
|
82
|
336
|
413
|
248
|
57
|
28
|
1082
|
34763
|
3.11%
|
2011-13
|
79
|
330
|
367
|
200
|
37
|
12
|
946
|
32028
|
2.95%
|
2011-14
|
79
|
273
|
344
|
137
|
52
|
15
|
821
|
32528
|
2.52%
|
2011-15 |
81
|
228
|
301
|
167
|
50
|
14
|
760
|
32980
|
2.30%
|
2011-16 |
68
|
222
|
250
|
158
|
31
|
16
|
677
|
27796
|
2.44%
|
2011-17 |
67
|
220
|
211
|
132
|
27
|
12
|
602
|
28812
|
2.09%
|
2011-18 |
58
|
188
|
250
|
170
|
34
|
15
|
657
|
27415
|
2.40%
|
2011-19 |
65
|
202
|
273
|
187
|
47
|
17
|
726
|
28048
|
2.59%
|
2011-20 |
59
|
179
|
222
|
138
|
23
|
11
|
573
|
26128
|
2.19%
|
2011-21 |
47
|
117
|
175
|
112
|
25
|
7
|
436
|
24831
|
1.76%
|
2011-22
|
38
|
81
|
85
|
79
|
12
|
6
|
263
|
13377
|
1.97%
|

National Influenza Report
The final U.S. influenza weekly report (FluView) for the 2010-2011 influenza season may be found at: http://www.cdc.gov/flu/weekly/fluactivity.htm. National influenza reporting will resume on October 2, 2011.
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.