The first flu case of the season has been reported in South Dakota.
That case was found in Lawrence County.
That's why health officials are encouraging everyone over six months of age to get a flu vaccine.
Influenza, also known as the flu, is a contagious disease that spreads around the United States every year, usually between October and May.
A physician assistant at Rapid City Medical Center says that's why vaccinating is very important, especially those that are considered to be in the high priority group.
That group includes children five years of age and younger, adults 65 and older, pregnant women, healthcare workers, and those with chronic health problems.
Physician Assistant Jennifer Johnson at Rapid City Medical Center, says, "Each year there's a million cases of flu, it's very prevalent and there can be complications due to the flu virus, so we really want to vaccinate to protect those vulnerable people. We want to try and keep them out of the hospital and possibly prevent death."
Health officials also like to remind people that there is no live flu virus in flu shots, so they say it cannot cause the flu.
Last season, nearly 54 percent of South Dakotans got a flu shot, which is the second highest vaccination rate in the nation.