New strain of norovirus stomach bug hitting the U.S., the CDC reported Thursday

Dozens sickened by Sydney strain of norovirus

NEW YORK - Health officials say a new strain of stomach bug that's sweeping the globe is taking over in the U.S.

In the last four months, more than 140 outbreaks in the U.S. have been caused by the new Sydney strain of norovirus. These kinds of contagious bugs cause bouts of diarrhea and vomiting.

The new strain may not be unusually dangerous; some scientists don't think it is. But it is different, and many people might not be able to fight off its gut-wrenching effects.

It often spreads in places like schools, cruise ships and nursing homes. The new strain was blamed for a recent outbreak on the Queen Mary 2.

The Centers for Disease Control and Prevention reported on the new strain Thursday.

Denver Public Health reported it was investigating a possible outbreak of a Noro-like virus in Dec. 2012.

The illness was first reported at Southmoor Elementary School. However, Denver Public Health said there are  additional cases that have been reported outside of school in Denver County, as well as in bordering counties.

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