China's quality-control chief has stepped down as the number of Chinese babies reported sickened by contaminated formula has soared to 53,000, CNN reports. Some 13,000 have been hospitalized; 40,000 more have been treated as outpatients. One ill toddler has been reported in Hong Kong. Chinese premier Wen Jibao toured hospitals and a supermarket, calling the makers of the milk “heartless” and pledging tougher regulations.
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