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Influenza Surveillance

Influenza surveillance in Oregon is a collaborative effort between the Oregon Public Health Division’s Acute and Communicable Disease Prevention Program (ACDP) and its many partners in local health departments, public health and clinical laboratories, healthcare providers, clinics, and emergency departments.

Topics include: reporting, testing, sentinel provider surveillance, and surveillance data.

About Influenza
Influenza, commonly known as the flu, is a contagious respiratory tract infection caused by influenza viruses. Influenza can cause mild to severe illness, and at times can lead to death. Symptoms of influenza generally include fever, cough, sore throat, muscle aches, headache, and/or fatigue.
 
During most influenza seasons, which typically run from November to April, between 10 percent and 20 percent of the population is infected with influenza viruses. More than 200,000 people are hospitalized with influenza each year in the U.S. Certain groups of people, including older adults, young children, pregnant women, and people with certain health conditions, are at higher risk for serious complications from influenza illness.

 
Influenza Surveillance Data
During the influenza season, the Oregon Public Health Division publishes a weekly surveillance report, FluBites. The latest report and archived data are available.
Influenza-like Illness Surveillance Network
Oregon's Outpatient Influenza-like Illness Surveillance Network (ILINet) is a collaborative effort between public health and Oregon healthcare providers.
Reporting is required in Oregon for certain cases of influenza.
Influenza testing can include rapid antigen tests, virus culture and PCR. ACDP provides guidelines for specimen collection and testing.