Wages for Chinese wet nurses, who post online ads and sign up at housework agencies around the country, have doubled since the milk crisis began on Sept. 12.

• 中国奶妈，在网上贴出了工资，并在全国各地的家政机构签约雇佣，他们的工资从9.；12以来的牛奶危机开始已经翻倍。