Following reports of foodborne illness, harvesting of oysters and hard clams in some Town of Huntington waters was to be temporarily banned as of sunrise Friday as a precaution, the state Department of Environmental Conservation said late Thursday afternoon.

Tests linked a number of cases of illness to Vibrio parahaemolyticus, also known as Vp, which is a marine bacterium that occurs naturally, said the DEC, which could not immediately say how many people were affected. Vp is often associated with warm water and not connected to contamination from sewage or storm water, the DEC said.

Within 24 hours, ingesting Vp can result in "diarrhea, nausea and vomiting, often accompanied by abdominal cramps, fever and chills," with some people experiencing more severe symptoms, the DEC said. It can take up to a week for people to recover.

The oyster harvesting ban affects about 4,400 acres in "all of Centerport Harbor, Duck Island Harbor, Northport Bay, Lloyd Harbor and that portion of Huntington Bay lying south of a line extending easterly from Target Rock, near Lloyd Neck, to the north side of the beach pavilion at the Town of Huntington's Hobart Beach on Eatons Neck."

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The hard clam ban affects about 2,300 acres including "all of Centerport Harbor, Duck Island Harbor and Northport Bay."

Learn more about closures at www.dec.ny.gov/outdoor/7765.html