共用题干
Ebola Outbreak

参考答案: C

参考解析: 第二段中提到埃博拉病情爆发的几个地点：Sierra Leone, Liberia and Guinea，几个地名提示，本题答案为D。


第三段第一句“Unless you recently visited one of the three affected West countries you risk of contracting the virus is virtually zero.”告诉我们，你如果并未到达疫情爆发地点，那么你患病几率为0，因此得知答案为A（我是否可能遭遇病毒）。


第四段第一句“The signs and symptoms of Ebola are non-specific and patients typically exhibit them after a week of contracting the virus.”便提及了埃博拉病毒的患病症状，故可知答案为C（我如何知道我是否患病了）。


第五段第一句话“Ebola is devastating because of its ability to attack and replicate in every organ of the body.”告诉了我们埃博拉病毒的致病机理。故本题答案为E（埃博拉病毒堆积造成什么样的影响）。


由第一段第一句话“You are likely aware that several countries in West Africa are battling an Ebola outbreak.”可知，埃博拉病毒爆发于西非的几个国家。故本题选E。


由题干中的SARS可定位到第三段，其中“Unlike other recent airborne virus outbreaks like SARS,the Ebola virus can only be spread through direct contact with an infected person.”提示，答案为C(它们的传播方式不同）。


由第四段的“Symptoms may appear as early as two days or as late as three weeks after initial infection.”一句可知，潜伏期为二到三周不等，故本题选F。


根据第三段的“Specifically, Ebola is spread through contact with body fluids.”可知，体液的接触是主要传播途径。故本题选A。