Nationally, South Dakota joins at least 26 other states reporting influenza activity. B have also been identified. Antigenic characterization of influenza viruses by the CDC has just begun on some these isolates and, at this time, all three virus types are antigenically similar to vaccine strains. Influenza is an upper respiratory illness characterized by sudden onset of fever, cold symptoms, chills, headache and body aches. Bronchitis and pneumonia are common complications.
Immunization remains the primary measure to prevent infection.
Healthcare providers with patient contact should get vaccinated to protect themselves and their patients from this infection. There are several antiviral drugs available on the market that can be used to treat influenza and can also be used preventively. Particularly in situations where high-risk individuals have not yet received influenza immunization antiviral drugs that are licensed for use preventively can be given along with influenza immunization The South Dakota influenza lab surveillance sites are equipped to continue collecting specimens for viral culture during this flu season. Please continue to send those specimens in. Viral culture provides the most detailed information that can be used in the characterization of influenza viruses.