If that happens, those mutant variants can outcompete their cousins and dominate.

如果发了况，些变异的变就会超过它们的表亲，占据主导地位。

However, it is in the grip of a vicious surge fuelled by a deadly variant.

然而，一由致命变病毒引发的恶性激增正笼罩着欧盟。

White Bengal tigers are a variant of the better-known orange Bengal tigers.

孟加拉白虎是更为大家熟知的孟加拉黄虎的变。

They usually are a lot more contagious, but they're not deadlier.

新变通常更具传染性，但并不会更致命。

New versions that crop up when a disease naturally mutates.

当一疾病自然变异时，就会出现新变。

He said problems from a new variant are " the last thing we need" .

他说，来自新变病毒的问题是我们" 最不需要的东西。"

Because they're mutants the human world did not understand them.

因为他们是变人，人类世界不理解他们。

But even before the Omicron variant, few thought the NHL would stick to its word.

但即使在奥密克戎变之前，也很少有人认为国家冰球联盟会言。

There may be another phase of the pandemic with new variants resistant to current vaccines.

新冠病毒的另一个阶段可能是对现有疫苗具有抗药性的新变。

The announcement follows a sharp rise in COVID infections fueled by the Delta variant.

一消息宣布之前，“德尔塔”变导致的新冠肺炎感染人数急剧上升。

Each of these families is divided into several genera, each genus into species, each species into varieties.

每一科分为好些属，属分为，分为变。

There's concern, of course, about new variants of the virus.

人们担心病毒产新的变。

A surge in cases driven by new variance has pushed health systems to their limits.

由于新的病毒变导致的病例正在激增，已将巴西的卫系统推向极限。

These virus variants that are circulating in a number of countries are more transmissible.

一些国家出现的病毒变传染性更强。

More signs of growing pressure on UK hospitals from the new coronavirus variant.

冠状病毒的新变毒株给英国医院带来了越来越大的压力。

That is thought to be up to 70% more infectious.

新变的传染率高出70%。

A highly infectious one which originated in Britain has spread to 50 countries and territories.

一起源于英国的高传染性病毒变已经传播到50个国家和地区。

A South African strain has been widespread 20 other countries.

一起源于南非的病毒变已经在其他20个国家传播。

A highly infectious variant of the virus now makes up most new cases.

一高度传染的病毒变现在构成了该国大部分新增病例。

Gronvall said some people are worried that the vaccine will not work against the variants.

格伦瓦尔表示，有些人担心疫苗对些变不起作用。