The vast majority of people get over the vast majority of viruses in about a week, though there are some, such as glandular fever, which linger longer.

绝大多数人一周左右就能摆脱大部分病毒的困扰，不过有些病症时间长些，比如腺热。

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These early symptoms are often very mild, so it is easy to mistake them for another condition, such as a cold, or glandular fever.

这些早期症状往往是非常温和的，所以很容易误以为他们的另一项条件，如患感冒，或腺发烧。

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When they do happen, they are similar to other viral infections such as glandular fever.

当他们出现，他们是类似的其他病毒感染，如腺热。

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They found 56, 681 MS cases and 14, 621 cases of glandular fever, which is caused by the Epstein-Barr virus.

BBC: Virus and low sunlight 'raises multiple sclerosis risk'

Scientists believe that Mohammed's cancer is caused by the Epstein-Barr virus, which is better known for causing glandular fever.

BBC: Mohammed

However when they combined the effect of sunlight and glandular fever, 72% of the variation in MS cases could be explained.

BBC: Virus and low sunlight 'raises multiple sclerosis risk'