The World Health Organization (WHO) has set a goal of stopping lymphatic filariasis as a public health problem by the year 2020.世界卫生组织已经设定了一个目标,在2020年前将淋巴丝虫病作为一个公共卫生问题予以消除.
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作者: jessica-tang 时间: 2014-7-7 12:52
the children are offen infacted,what they don't go until later in life
