All right, Guillermo, your ambition is infectious.

好的 吉列莫 你的野心具有传染性。

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。

It's not clear whether they were infectious.

病毒的传染性还不得。

It's not known when exactly people are contagious once they've contracted it.

我们也不道人们感染病毒后何时会具有传染性。

Ebola is not that contagious but it is infectious.

埃博拉病毒不具有接触传染性，但它具有易传染性。

Pertussis is highly contagious; that means it's easy to catch.

百日咳具有高传染性；也就是说很易得这种病。

Some of the mutations have been associated with higher transmissibility.

其中一些突变可会有更高的传染性。

Supporters of contact tracing, which include the director of the U.S. Centers for Disease Control, say the process is fundamental for controlling the spread of communicable diseases, like coronavirus.

包括美国疾病控制中心主任在内的接触者追踪技术的支持者们，他们认为这一方法有控制传染性疾病的传播，比如冠状病毒。

I-I-I basically mixed this with a more contagious flu virus.

我加入了一种更具传染性的流感病毒。

The vagary of Timothy Fairway was infectious.

蒂莫西·费尔韦的异常举动有传染性。

It combines contagiousness and lethality in a ferocious mixture that Anthony Fauci, director of the U.S. National Institute of Allergy and Infectious Diseases, has called his " worst nightmare."

它结合了传染性和致死性，这个凶猛的组合被美国国家过敏症与传染病研究所所长安东尼·福奇称为“最糟的恶梦”。

World Health Organization experts say there's no evidence that the highly contagious new variant of coronavirus that's taken hold in Britain is more severe than existing strains.

世界卫生组织专家表示，没有证据表明在英国发现的新型高传染性冠状病毒比现有的病毒更严重。

To clarify these points: Pathogenicity is defined as the ability of an infectious agent to cause disease or damage in a host.

致病性的定义是一种传染性病原体在宿主体内引起疾病或损害的力。

The atmosphere of feverish excitement was highly infectious; Harry couldn't stop grinning.

这种狂热的兴奋情绪是很有传染性的，哈利也忍不住笑得合不拢嘴。

There's also growing concern over the impact of the new coronavirus variant, which could be up to 70 percent more infectious than other strains.

人们也越来越担心冠状病毒新变种的影响，其传染性可比其他毒株高70%。

They're not certain how contagious people are when they get it.

当有人感染时，他们也不确定这些感染者的传染性有多强。

Panic is contagious and prompts a fight or flight survival system to kick in.

恐慌具有传染性，并刺激人类开启战斗或逃跑生存系统。

So, to recap: Cholera is a contagious, severe gastroenteritis caused by the gram-negative Vibrio cholerae bacteria.

得！快速回顾一下：霍乱是一种由革兰氏阴性霍乱弧菌引起的具有传染性的、严重的胃肠炎。

That was reportedly twice as contagious as previous versions of it.

据报道，变异毒株的传染性是普通冠状病毒的两倍。

Health officials say it's far more contagious than previous strains of COVID, but most medical officials also say that existing COVID vaccines are effective in preventing people from being hospitalized from the " Delta variant" .

卫生官员表示，这种病毒的传染性远远超过以往的新冠病毒菌株，但大多数医疗官员也表示，现有的新冠病毒疫苗可以有防止感染" 德尔塔变异毒株" 的人病情加重住院。