这名芝加哥大学儿童医院的小患者还处于危险状态，他是由于与他父亲接触后出现湿疹反应的。他父亲是一名即将派遣去伊拉克的士兵，为此接种了天花疫苗。

The child, still in critical condition at the University of Chicago's Comer Children's Hospital, developed the reaction after being with his father, a soldier vaccinated for deployment in Iraq.

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