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对雅安市11005名中小学生乙肝疫苗接种现状及部分学生HBsAg携带率的调查分析，结果显示中小学生的HBsAg携带率；城区小学为3.31％；城区中学为4.04％；农村小学为6.68％。农村显著高于城区（P＜0.05）。曾到各医疗点接种乙肝疫苗的中小学生占被调查学生的44．56％，接受抗-HBs检测4838人，抗-HBs阳性率为为77.32％；其中防疫站组织学校接种1040人，接受抗-HBs检测469人，抗-HBs阳性率为82.73％。
The survey of 11,500 primary and secondary hepatitis B vaccination students and the HBsAg carrier rate of some students in Ya’an City showed that HBsAg carrier rate among primary and secondary school students was 3.31% in urban primary schools, 4.04% in urban secondary schools and 6.68% in rural primary schools. Rural areas were significantly higher than those in urban areas (P <0.05). Primary and secondary school students who had been vaccinated with hepatitis B vaccine at various medical points accounted for 44.56% of the investigated students, 4838 were tested against anti-HBs and the positive rate of anti-HBs was 77.32%. Among them, 1040 were vaccinated in epidemic prevention stations, -HBs test 469 people, anti-HBs positive rate was 82.73%.