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1材料与方法1.1选点与抽样本次调查在我县的七个乡镇中每个乡镇各选择两个采样点,把0岁～15岁儿童分为A、B、C、D、E、F六组,A组0岁～1岁、B组1岁～2岁、C组3岁～4岁、D组5岁～6岁、E组7岁～9岁、F组10岁～15岁。每点每组采取空腹静脉血样(3 ml～5 ml)5份,尽快送我中心化验室进行血清分离,然后进行乙型肝炎表面抗原(HB-SAg)和抗体(HBSAb)的检测。
1 Materials and Methods 1.1 Selection and Sampling The survey selected two sampling points in each of the seven towns in our county to divide children aged 0-15 years into A, B, C, D, E and F Group A was 0 years old to 1 year old, Group B was 1 years old to 2 years old, Group C was 3 years old to 4 years old, Group D was 5 years old to 6 years old, Group E was 7 years old to 9 years old, Group F was 10 years old to 15 years old . Fasting venous blood samples (3ml ~ 5ml) were taken from each group at 5 points. The samples were sent to our central laboratory for serum separation as soon as possible. Then HBsAg and HBsAg were detected.