只有过半的人有冬季病毒症状，而其余的则是对照患者。

Just over half had winter virus symptoms while the rest were control patients.

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在试验中，科学家们已经成功地治疗了开始出现病毒症状的灵长类动物。

Scientists were able to successfully treat infected primates following the onset of disease symptoms.

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相较于前两年，今 年养成场并未检出白点症、草虾杆状病毒症、黄头病毒症及毛利病毒 症。

Compared to results in the previous two years, White Spot Syndrome (WSS), Monodon Baculovirus Disease, Yellowhead Disease and Mourilyan Virus Disease were not found this year.

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If you just introduced this polio virus, which you could make in large quantities into people now, you would be causing polio.

如果你直接接种脊髓灰质炎病毒,将大量的病毒直接接种到人体,就会引起小儿麻痹症

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In the Sabin vaccine, or the oral polio vaccine, now you have a non-virulent virus.

在沙宾疫苗,即口服小儿麻痹症疫苗中,存在非致病性病毒

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So, polio--the disease caused by polio can be a paralytic disease, crippling, and in some cases can lead to death if the disease progresses in certain ways.

小儿麻痹症便是由脊髓灰质炎病毒引起的,如果脊髓灰质炎发展到一定程度,患者不仅会瘫痪或者残疾,一些病例甚至可能死亡

耶鲁公开课 - 生物医学工程探索课程节选