The activated viral strain attempts to erase the hard drive and overwrite the system's BIOS as well.

激活病毒毒株试图擦除硬盘和覆盖系统的BIOS。

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They used this and other HIV-1 genetic sequences to construct a family tree of the origin of the viral strain and to estimate the time of origin of HIV-1 group m.

他们利用这个遗传序列与其他HIV - 1的遗传序列构建出起源病毒株的家系图，并以此估算出HIV - 1 M组的起源时间。

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This appears to be clearly better than standard treatment alone, which works 40% to 50% of the time for the most common viral strain.

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The president, who said the virus is a "cause for concern but not alarm, " added the government has anti-viral treatment to treat the current strain of H1N1.

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The strain was also modified to produce some viral enzymes.

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