Stomach flu cases are on the rise in Illinois, some severe enough to send people to the hospital. While most norovirus cases typically occur between November and April in a given year, cases in the Midwest have spiked dramatically since mid-January. The U.S. Centers for Disease Control and Prevention reports norovirus, often referred to as the stomach flu, is not related to influenza but is very contagious.

Local county health departments urge people to seek treatment if feeling ill.  

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