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Influenza (Seasonal Flu)


Influenza is a contagious, upper-respiratory disease caused by many different strains of influenza viruses. While many people use the imprecise term "flu" to describe 24 or 48 hour bouts of illness, real influenza can interfere with normal daily activities for as long as a week.

Influenza is not a minor inconvenience. As many as 200,000 Americans are hospitalized because of it each year, and as many as 36,000 die of the disease or complications associated with it.

Children under age 1, people 65 or older and people suffering from underlying medical conditions are at a higher risk of serious complications.

CDC's Fight the Flu!

Current Influenza Activity in Montana (season summary)


Need to get a flu shot?

Contact your primary care provider, local public health department, or local pharmacy.

For a list of Vaccines For Children (VFC) providers click HERE


Image of Influenza cells

Image of vacine

Montana map image

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Contact the Epidemiology Section

              Phone (406) 444-0273              

Fax (406) 444-0308 


Contact the Immunization Section

Phone (406) 444-5580

Fax (406) 444-2920



Interested in medical history? Check out these fascinating flu facts and anecdotes here.