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Influenza Hospital Surveillance

EIP Oregon Influenza Surveillance logoSurveillance for adult and pediatric influenza-related hospitalizations is a collaborative project between U.S. Centers for Disease Control and Prevention (CDC - EIP), Oregon hospitals' infection control staff, Oregon Public Health Division's Emerging Infections Program. The project began because of an unusually early start to the 2003-2004 influenza season coupled with reports of influenza-associated complications and deaths in children.

As a result, the EIP states began conducting population-based surveillance to assess the burden of influenza in pediatric patients. Adult influenza hospitalization surveillance began during the 2005-06 influenza season and expanded upon the existing pediatric surveillance structure. The primary objective for these surveillance projects is to determine the rate of influenza among these populations as well as describe the characteristics of children and adults with severe flu. These projects also contribute to evaluations of current influenza vaccine recommendations.

On this page:

Ongoing Influenza Hospital Surveillance Activities

Surveillance Activities

Influenza-related Hospital Surveillance Activities

Enhanced surveillance is conducted for:

  • All ages hospitalized with lab-confirmed influenza (including rapid tests) for residents living in Washington, Clackamas, and Multnomah counties. 


Influenza Hospital Surveillance Data

Influenza Hospital Surveillance Data As Part of Oregon EIP


Influenza Hospital Surveillance Special Studies

Oregon EIP Influenza Hospital Surveillance Special Studies

Trivalent Inactivated Influenza Vaccine (TIV) Effectiveness (2008-2011)
The TIV study is a multi-state study funded by CDC to determine the effectiveness of TIV among persons 50 and older in preventing laboratory confirmed hospitalizations.

To see all Oregon Emerging Infections Program special studies go to EIP special studies.