Macro viruses are often spread in email.

宏病毒通常在电子邮件中传播。

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Macro viruses tend to be surprising but relatively harmless.

宏病毒往往是出人意料，但相对无害。

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By exploiting networks in this way, macro viruses have spread round the world in weeks.

在网络上通过这种方式，宏病毒可以在几周内传遍全世界。

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Macro viruses are easy to write, and the interoperability of e-mail software gives viruses ample opportunity to spread.

CNN: Stopping the next Melissa

While Live OneCare did manage to spot 100% of the macro viruses it was tested against, it missed some wild viruses, polymorphic programs and file infectors.

BBC: NEWS | Technology | Windows 'fails' active virus test

The Virus Bulletin tests try to catch out anti-virus software with a variety of malicious programs including bots and worms known to be spreading online, file infectors, polymorphic and macro viruses.

BBC: NEWS | Technology | Windows 'fails' active virus test