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乙型病毒性肝炎(以下简称乙肝)是危害我国人民健康的重大传染病之一,接种乙肝疫苗是控制乙肝的有效手段。自20世纪90年代将乙肝疫苗纳入计划免疫管理以来,我国使用多种乙肝疫苗对婴幼儿进行预防接种,取得良好收益。在国家尚无统一的加强免疫程序情况下,选用何种剂量乙肝疫苗加强接种已成为困扰基层疾控人员的一大难题。为比较不同剂量乙
Hepatitis B virus (hereinafter referred to as hepatitis B) is one of the major infectious diseases endangering the health of our people. Hepatitis B vaccination is an effective means of controlling hepatitis B. Since the hepatitis B vaccine was included in the planned immunization management in the 1990s, many kinds of hepatitis B vaccines have been used in vaccination of infants and young children in our country, and good returns have been achieved. In the absence of a unified national immunization program, the choice of which dose of hepatitis B vaccine to strengthen vaccination has become a major problem plaguing grass-roots CDC. To compare different doses of B