As more illnesses are linked to ground beef that was sold at Hannaford Supermarkets, the company says it has changed its practices for grinding meat, and U.S. Rep. Chellie Pingree is pressing federal officials to provide more information about their investigation.
The U.S. Centers for Disease Control and Prevention released new information Wednesday about a salmonella outbreak that first was reported Dec. 15, when Scarborough-based Hannaford recalled ground beef with sell-by dates of Dec. 17 or earlier.
The CDC says the number of reported cases of the rare strain of salmonella typhimurium is now 19 — up from 14 cases on Dec. 15 and last week's total of 18. The number of cases in Maine hasn't risen from the four initially reported.
The other 15 cases have been reported in six states. New Hampshire has had the most, with six, followed by five in New York. Single cases have been reported in Vermont, Massachusetts, Kentucky and Hawaii.
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