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疾病控制和预防中心推荐所有一岁儿童和高危人群接种HAV疫苗。该疫苗高度有效,但保护力持续时间仍然未知。我们报道了幼儿接种HAV疫苗后17年内的抗体浓度,结果表明,保护性和抗体水平在超过七年的时间仍然维持在稳定水平。
The Centers for Disease Control and Prevention recommends all HAV vaccines for all one-year-olds and high-risk groups. The vaccine is highly effective, but the duration of the protection is still unknown. We report antibody concentrations within 17 years of vaccination of young children with HAV vaccine and showed that protective and antibody levels remained stable for more than seven years.