在世界范围内，慢性乙型肝炎和丙型肝炎是肝癌的主要病因。接种乙肝疫苗，适当筛查和管理慢性乙型肝炎、丙型肝炎，感染基本上可以预防。 乙肝课程是对初级卫生保健机构从业人员开放的在线课程。该课程的意义，在于让卫生专业人员了解病毒性肝炎的类型、传播途径、如何预防、及乙肝疫苗接种情况，并帮助他们培养如何有效预防、诊断、以及管理慢性乙型肝炎和丙型肝炎感染患者的方法。 我们相信，培养保健专业人员在乙肝和丙肝预防、控制方面的知识和技能，可以提高乙肝疫苗接种覆盖率，有效减少乙肝和丙肝感染以及肝癌的发病率。 世界卫生组织（WHO）和中国卫生部一直在乙肝、丙肝的数据更新和如何防治方面给予指导。
An excellent online course offered by edX: how it works
edX courses consist of weekly learning sequences. Each learning sequence is composed of short videos interspersed with interactive learning exercises, where students can immediately practise the concepts from the videos. The courses often include tutorial videos that are similar to small on-campus discussion groups, an online textbook, and an online discussion forum where students can post and review questions and comments to each other and teaching assistants. Where applicable, online laboratories are incorporated into the course.
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