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为了解南方部队新兵急性腹泻病的发病状况及其主要危险因素 ,以便加强预防工作的针对性 ,我们进行了本次调查。对象与方法 (1)急性腹泻发病调查 :以南方战区某部队1997年 12月入伍的全部新兵为调查对象。 (2 )病例对照研究对象 :以该部队某营新兵为病例对照研究对象。 (3)病?
In order to understand the incidence of acute diarrhea in southern army units and their major risk factors so as to enhance the pertinence of preventive work, we conducted this survey. Subjects and methods (1) Acute diarrhea incidence survey: a military unit in the southern theater in December 1997 all recruits for the investigation. (2) Case-control study: recruited recruits from the battalion as case-control subjects. (3) sick?