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Influenza Update: 2010-2011 Season

Influenza Update: 2010-2011 Season. Carol M Davis, MSPH, CPH Epidemiologist Emerging and Acute Infectious Diseases Branch Texas Department of State Health Service. Contributors: Lesley Brannan, Tony Aragon, Irene Brown. Circulating Influenza Viruses. Texas: 2010-2011 influenza season

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Influenza Update: 2010-2011 Season

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  1. Influenza Update:2010-2011 Season Carol M Davis, MSPH, CPH Epidemiologist Emerging and Acute Infectious Diseases Branch Texas Department of State Health Service Contributors: Lesley Brannan, Tony Aragon, Irene Brown

  2. Circulating Influenza Viruses Texas: 2010-2011 influenza season through week 5

  3. Vaccine Breakthrough • DSHS has been receiving calls asking about potential influenza vaccine breakthrough this season • Voluntary reporting of suspected cases • Influenza vaccine expectations • 70-90% in healthy adults <65 • Less in certain subgroups (age/immunocompetence) • Antigenic testing • All 29 Texas specimens tested so far were related to a component of the 2010-2011 vaccine • 100% of H1N1, 99% of H3N2 and 93% of the Flu B strains tested by the CDC were related to their respective components in the vaccine

  4. Outbreaks • 5 nursing home influenza outbreaks reported to DSHS in 2011 • No deaths associated with these outbreaks • CDC informal survey of state flu coordinators • Recommend following CDC guidance www.cdc.gov/flu/professionals/infectioncontrol/ • Report outbreaks (1 confirmed case) • Droplet precautions • Cohorting of ill / exposed; restrict movement • Provide antiviral treatment and chemoprophylaxis • Vaccinate unvaccinated individuals per recommendations

  5. Influenza Information • Weekly DSHS report www.texasflu.org • Weekly CDC report www.cdc.gov/flu/weekly/

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