The story

A third baby has died and at least 6,200 children have fallen ill after drinking formula tainted with the same chemical involved in a massive pet food recall last year, Chinese officials said Wednesday.

China's largest producer of milk, Mengniu Dairy Group, announced the recall of three batches of formula made in January after tests showed they were contaminated with melamine, said Li Changjiang, China's director of quarantine and inspection.

Though it should not be added to food ingredients, suppliers in China sometimes put it in food to make a product appear to be protein rich. Melamine has nitrogen, and standard tests for protein in bulk food ingredients measure levels of nitrogen. Read full article »

CNN's John Vause and Yuli Yang contributed to this story.

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