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乙型肝炎(HB)在大部分热带地区呈地方性流行,到这些国家去的旅游者具有高度危险性。常规HB疫苗接种程序为时太久,本研究旨在确定3周内注射3剂HB疫苗能否达到保护性抗-HBs水平。
Hepatitis B (HB) is endemic in most tropical regions and tourists to these countries are highly at risk. The routine HB vaccination schedule took too long to determine whether 3 doses of HB vaccine could reach protective anti-HBs levels within 3 weeks.