That may be a common physiological mechanism which means organism can control the expression of genes and resist the virus infection, or the DNA mutation induced by during the period of evolution.

在进化上，这可能是生物调控基因表达及抵御病毒侵染或转座子诱导DNA突变的一种共有的生理机制。

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These two new antibody discovery is important because the HIV virus is prone to mutation, and two new antibodies appear to resist any form of HIV.

这两种新抗体的发现之所以重要，是因为HIV病毒很容易发生变异，而这两种新抗体可以抵御以任何形态出现的HIV病毒。

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The widely publicized patient, Timothy Brown, was treated for leukemia with a bone marrow transplant that happened to come from a donor with a genetic mutation that makes immune cells resist HIV infection.

MSN: Two more men with HIV now virus-free. Is this a cure?