我们有充分理由猜测，病毒在传播的过程中，其致命毒力逐渐减弱。
There is good reason to suspect the virus will become less lethal as it spreads.
如果这种病毒能够通过空气传播，或者如果一名感染者在不知情的情况下进入了人口密集的地区，那么埃博拉可能已经成为一种全球流行病。
If the virus had been capable of spreading through the air, or if one infected person had unknowingly entered a large population center, Ebola might have become a worldwide epidemic.
中国政府成功地阻止了病毒在中国的传播。
Chinese government has successfully stopped the virus from spreading in China.
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