英语词典
It is thus clear, the boosting dose of HB vaccine to 5-year-old children though could raise anti-HBs at a total level in a short time and sustained but it had no preventive effect on hepatitis B virus infection.
由此可见,对5周岁儿童实施加强免疫可使抗-HBs总体水平短期内明显升高,持续时间有所延长,但对儿童乙肝病毒感染无明显影响。
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