2011-2012 DSHS Flu Report Week 31

Current Flu Activity Report in PDF Format

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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