New versions that crop up when a disease naturally mutates.

当一种疾病自然变异时，就会出现新变种。

The virus itself might have mutated to spread more easily.

病毒本身可变异，可以更容易地传播。

There is no state of their existence in human beings that is not constantly mutating.

在人体中，没有一种病毒状态不是不断变化的。

If the virus mutates further, it might become airborne.

如果该病毒进一步变异，那么它有可通过空气传播。

A bigger worry, however, is when a virus mutates by changing the protein on its surface.

然而，更令人担忧的况是，病毒通过改变其表面的蛋白质而发生变异。

And also on whether the virus mutates to become more transmissible or lethal.

以及病毒是否会突变，变得更具传染性或致命性。

As mischief has become easier, the hacker crowd has burgeoned and mutated.

随着内部不和升级，黑客组织生出新芽，产生巨变。

Coronavirus mutates more slowly than flu.

冠状病毒的变异速度比流感慢。

Has the virus mutated to become worse for kids?

病毒变异后对儿童影响更严重了？

Experts say thousands of individual changes arise as the virus mutates and develops into new variants over time.

专家表示，随着时间推移，病毒变异和发展出新的变种，会出现成千上万的个体差异。

These diseases typically mutate as they circulate around the world.

这类疾病通常会随着在世界各地的传播而产生变异。

In this case, the by-product was mutated red blood cells.

此处的影响是指发生变异的红细胞。

And a third challenge is new variants of coronavirus. New versions that crop up when a disease naturally mutates.

第三个挑战是冠状病毒的新变种。当一种疾病自然变异时，就会出现新变种。

Researchers say they are also screening drugs targeting pneumonia caused by the virus and studying how the virus mutates.

研究人员表示他们也在对新型冠状病毒性肺炎进行药物筛查，并研究该病毒如何突变。

The bad news, this year's vaccine isn't particularly effective. The CDC says it's because the flu has mutated.

而坏消息则是今的疫苗并非特别有效。疾控中心称这是因为流感变异所致。

For example, what permits the viruses to mutate and spread to other species.

例如，病毒突变和传染给其他物种的条件是什么。

HeLa cells themselves actually have around 80 highly mutated chromosomes.

海拉细胞自己拥有大约八十条高度变异的染色体。

His one-time reformist zeal mutated into a fear of upsetting the status quo.

他曾的改革热变成了打破现状的恐惧。

They say viruses mutate naturally and that all forms of the coronavirus are dangerous.

他们表示病毒会自然变异，所有形式的冠状病毒都是危险的。

When the APC gene is mutated, the epithelial cells start to quickly divide forming polyps.

当APC基因突变时，上皮细胞开始快速增殖，形成息肉。