Melamine-tainted infant formula linked to kidney stones

By Janet Raloff, 18:26 PM February 4, 2009

Last September, Chinese officials acknowledged that months-long illegal use of a fraudulent protein substitute — melamine — had poisoned powdered infant formula that was sold throughout the country. Some 300,000 children are believed to have consumed the tainted product, in some cases for more than a year. Overall, an estimated 1,200 infants and toddlers were sickened. Six died. Today, a Chinese study and two related research letters — all released early by the New England Journal of Medicin...

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