A relatively new strain of the stomach flu is hitting some people pretty hard this year.  The “Sydney” strain actually popped up earlier last year, but is now making the rounds again in Illinois.  State Department of Public Health spokesperson Melaney Arnold says it usually comes on quickly and includes vomiting, diarrhea and cramps.

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Arnold says the bug usually lasts one to three days, and is different from influenza.  She says the “Sydney” strain has not caused more cases of the stomach flu than usual.

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