Objectives to study the viral etiology of acute lower respiratory tract infection (ALRTI) of children in Shanghai.
目的了解上海地区急性下呼吸道感染(ALRTI)患儿病毒感染病原体的现状。
The rapid spread of obesity is analogous to the spread of an infectious disease, and the viral etiology of obesity is appealing as an explanation to the public health crisis.
狂飞猛涨的体重就像四处传播的传染病，而肥胖的病毒病因说，对于肥胖这一公共健康危机来讲，是个很有吸引力的解释。
As of 28 October 2009, the Ministry of Health has reported 3 367 suspected cases of viral diseases of unknown etiology in 4 islands: Brava, Fogo, Maio, and Santiago.
截至2009年10月28日，该国卫生部报告了其4个岛屿：布拉瓦岛、福古岛、马尤岛和圣地亚哥岛上发生的3367例病因不明的病毒病疑似病例。这是首次报告的佛得角登革热疫情。
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