Qatar has denied there's a widespread outbreak.

卡塔尔否认了有大范围的病毒暴发。

But in the early '90s, a new type of virus became prevalent.

但在90年代初期有一种新型的病毒开始流行了起。

Starfish die-offs have been observed in the past, according to " The Atlantic" magazine, and researchers say at least one other species that was affected by this one has started to recover.

据《大西洋》杂志报道，过去曾观察到过海星数量锐减现象，研究人，少有一种受此病毒影响的物种已经开始恢复。

The second success has fueled optimism. We now have reason to believe that the Berlin patient was not a one-off case, meaning it is possible to nearly or maybe even completely eliminate HIV from the body of an infected person.

第二次成功激起了人们的乐观精神。我们现在有理由相信柏林病人的案例是可以复制的，也就是说，让HIV患者去除病毒是有可能的。

That's more than the total number of positive COVID tests the U.S. has recorded.

比国有记录的新冠病毒阳性患者总数还要多。

When it comes to medical tests that diagnose COVID, there are two main options, the antigen or rapid test and the polymerase test.

现存主要有两种检测新冠病毒的医学测试方法，一种是抗原或快速检测，另一种是聚合酶链式检测即核酸检测。

But a former commissioner from the U.S. Food and Drug Administration says there's a new variant of COVID, a new strain of it that could cause another increase in coronavirus cases.

但是，一国食药监局的前工作人表示，目前有新冠病毒的变种毒株，可能导致感染冠状病毒的病例再次增加。

So becomes the needle in a haystack, trying to find a few that have malaria.

在这十亿个红细胞中找到有疟疾病毒的细胞犹如大海捞针。

If other people touch the surface or breathe the same air, they can get sick.

如果其他人触摸到沾有病毒的物体表面或吸入了相同的空气，他们就会被感染。

Up until recently, the World Health Organisation said there were two groups who definitely should wear masks: people showing symptoms of the virus and their carers.

到目前为止，世界卫生组织说有两类人是明确应该戴口罩的：有感染了病毒的症状的人以及他们的看护者。

And that the measures we had of the HIV reservoir in the body showed that there was very very little virus there, if any at all.

我们测量患者体内HIV病毒量，结果表明，即使真的有，那里的病毒也非常少。

The risk of contracting the coronavirus is also in the back of Austin's mind.

奥斯汀也担心有感染冠状病毒的风险。

Every country in Africa has recorded cases of corona virus.

非洲每个国家都有冠状病毒的病例。

They said those areas are at risk of having an outbreak of the virus.

他们这些地区有爆发寨卡病毒的风险。

Moderna shot shown similar protection with 94 percent effectiveness against the coronavirus.

莫德纳疫苗对冠状病毒有类似的保护效果，有效率为94%。

You don't know that, though. We could all have it.

谁说得一定呢 人人都有染上病毒的可能啊。

White House Covid 19 coordinator Dr. Ashish Ja said the 79-year-old Biden has a runny nose and a dry cough, but stressed that he has a strong level of immunity from the virus.

白宫防疫协调官阿希什·贾表示：“79岁的拜登虽然流鼻涕、干咳，但对新冠病毒有很强的免疫力。”

The CDC has a webpage with information on Zika. It says that because the " mosquitoes that spread Zika virus are found throughout the world, it is likely that outbreaks will spread to new countries."

国疾控中心一个网页上介绍了塞卡病毒，因为“全世界都发现有传播塞卡病毒的蚊子，因此这一疫情可能会传播到更多国家。”

Earlier, Zhifei Longcom, the manufacturer of the ZF2001 vaccine, released encouraging data showing that the shot is 75.7 percent effective against symptomatic and 87.6 percent effective against severe-to-critical COVID-19 cases for six months following full vaccination.

早前，ZF2001 疫苗的制造商安徽智飞龙科马生物制药有限公司发布了振奋人心的数据，显示在完全接种该疫苗后的六个月内，预防有症状的新冠病毒，有效性达 75.7%、预防重症危重症的效力为 87.6%。

It says travel to Seoul is prohibited except for official duties or for individuals who live or work in the capital city owing to the associated risk of potential exposure to the virus.

该部门表示，因为有可能接触到病毒的相关风险，除执行公务或在首尔生活或工作的个人外，禁止前往首尔。