2009 - 2010 Texas Influenza Surveillance Information

During week 32 in Texas:

• No specimens tested by NREVSS laboratories in Texas were positive for influenza; however, the DSHS Austin Laboratory reported a PCR positive result for influenza A (H3N2) from a flu specimen submitted by a provider in Dallas County. The patient developed flu-like symptoms on the return flight from a 7-day trip to Honduras.
• The percentage of visits for influenza-like illness as reported by ILINet providers in Texas was below the regional baseline.

Reports from Health Service Regions

Laboratory Results

Influenza

Additional influenza test results (rapid tests, culture, PCR) were reported from providers and public health departments throughout the state (see county map below).

Other Viruses

The NREVSS system collects information on a variety of respiratory viruses in addition to influenza including parainfluenza, respiratory syncytial virus (RSV), rhinovirus, human metapneumovirus (HMPV), and respiratory adenovirus. The results from week 32 are summarized below.

Novel Influenza A Virus Infections

Novel influenza A (H1N1)-specific surveillance was discontinued after May 22, 2010. For final novel influenza A (H1N1)-specific reports, please see the Texas Department of State Health Services (DSHS)novel influenza website (http://www.texasflu.org) and the CDC website (http://www.cdc.gov/h1n1flu/).

Antigenic Characterization

The national antigenic characterization and antiviral resistance testing results may be found in the final CDC weekly flu report at www.cdc.gov/flu/weekly/. The DSHS Laboratory sends a representative sample of influenza viruses to the CDC throughout the flu season.

Antiviral Resistance

                                        *Adamantanes are not effective against influenza B viruses.

Influenza–Associated Pediatric Mortality

School Closures and Institutional Outbreaks

U.S. Outpatient Influenza-like Illness Surveillance Network

National Influenza Activity Map

For more information on flu surveillance activities in the State of Texas, please visit the following website: www.dshs.state.tx.us/idcu/disease/influenza/surveillance/

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.

2009 - 2010 Texas Influenza Surveillance Information --- Flu Reports

For the week ending: 10/10/09; 10/17/09; 10/24/09; 10/31/09; 11/07/09; 11/14/09; 11/21/09; 11/28/09; 12/05/09; 12/12/09; 12/19/09; 12/26/09; 01/02/10; 01/09/10; 01/16/10; 01/23/10; 01/30/10; 02/06/10; 02/13/10; 02/20/10; 02/27/10; 03/06/10; 03/13/10; 03/20/10; 03/27/10; 04/03/10; 04/10/10; 04/17/10; 04/24/10; 05/01/10; 05/08/10; 05/15/10; 05/22/10; 05/29/10; 06/05/10; 06/12/10; 06/19/10; 06/26/10; 07/03/10; 07/10/10; 07/17/10; 07/24/10; 07/31/10; 08/07/10; 08/14/10; 08/21/10; 08/28/10; 09/04/10; 09/11/10; 09/18/10; 09/25/10; 10/02/10;

 Return to the Top of the Page