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S&P lowered Italy's long-term credit rating one notch to A, three notches below Moody's current rating.
Italian 10-year government bond yields rose 13 basis points to 5.72 percent, while 2-year yields were up 12 bps at 4.41 percent.
The 10-year spead over Bunds widened 17 basis points to 387 basis points.
Copyright Reuters, 2011