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State health officials say the number of probable cases of swine flu among University of Delaware students has risen to 10.
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Officials said late Wednesday that six students treated at UD's Student Health Services, including one who recently traveled to Mexico, have been identified as meeting the probable definition for swine flu.
Gov. Jack Markell and state health officials had held a news conference earlier Wednesday to assure residents they need not be anxious about four flu cases at the university that met probable definitions of swine flu.