Four Long Island hospitals are among those with the 10 highest rates of C. diff infection in the state, according to data for 2013.

Of the Long Island hospitals, Peconic Bay Medical Center has the highest rate at 23.3 per 10,000 patient days (patient days are the number of all patients multiplied by the number of days of their stay). The statewide rate is 11.3.

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C. diff, or Clostridium difficile, is a germ that can cause diarrhea, fever, nausea, loss of appetite and belly pain and tenderness. The germ is commonly found in health care settings.

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Stony Brook University Hospital, Long Island Jewish Medical Center and South Nassau Communities Hospital are also within those with the top 10 highest rates. Eastern Long Island Hospital is among those with the lowest rate at 1.6.

Click the link above to see the full set of data, and to compare infection rates for 2013 and 2012.