The vaccine only requires a single dose, and millions of doses are being shipped out.

这种疫苗只需要一剂，而数以百万计的疫苗正在进行运输。

The WHO says it's not clear how long any immunity from a single dose lasts.

世卫组织表示，目前还不清楚单剂免疫能持续多长时间。

The White House said the first shipments of the single dose jab could arrive as early as Monday.

白宫表示，第一批单剂疫苗最早将于周一抵达美国。

Mayronne of Doctors Without Borders noted that a single dose can lower one's risk by only 40 percent.

无国界医生组织的梅隆指出，一剂疫苗只能降低40%的风险。

The US health authorities said six cases were detected among more than 6 million Americans who received the single dose vaccine.

美国卫生当局表示，在接种单剂疫苗的600多万美国人中发现了6例血栓病例。

Researchers from the University College London said 80% of women benefited from the single dose of radiotherapy with fewer side effects.

伦敦大学学院的研究人员表示，80%的女性受益于单剂量放疗，且副作用更少。

If that protein's only needed once, then maybe a single dose would suffice.

如果那种蛋白质只需要一次，那么也许一次剂量就足够了。

The ideal technology would be a vaccine that gives lifetime immunity with a single dose.

理想的技术是一种单剂即可提供终生免疫力的疫苗。

In many low-income countries, less than 1 percent of people have gotten a single dose.

在许多低收入国家，只有不到 1% 的人接种过一剂疫苗。

A team from Dundee university says the chemical compound will protect people from disease and prevent its spreading all in a single dose.

来自邓迪大学的团队称，这种化学合成物将保护人们免于该疾病，并能预防疟疾的传播，且只需一剂即可。

Perhaps the most potent finding is that just a single dose of alcohol in the late evening can zap the efficacy of your z's.

也许最有效的发现是，在深夜饮用一剂量的酒精会抵消睡眠的功效。

With the price of about $140 per single dose, the full treatment may cost more than $500, which makes it unaffordable for most rural Africans.

每剂药的价格大约140美元，全部治疗需要500多美元，这对大多数非洲农村人来说难以承受。

The World Health Organization has announced that a shortage of cholera vaccines has prompted a shift in strategy to using a single dose rather than two.

世界卫生组织宣布，由于霍乱疫苗短缺，两剂疫苗接种方案暂时中止，转而使用单剂方法。

And inone study researchers did in fact find that some people who took a single dose of psilocybin experienced altered personalities for more than a year.

在一次实验中科学家确实发现一些有服用一定剂量裸头草碱的人的性格的确发生了改变，并且持续了一年多。

But right now with almost every grinder I've ever used that is a single dose grinder, it kinda do, it is a pretty useful little thing.

但现在我用过的所有研磨机都是单剂量研磨机，这是一个非常有用的小工具。

Previous research shows that even with just a single dose of oxytocin, people are more likely to look directly at someone, rather than avoid the gaze.

以往研究表明，即便仅使用单剂量催产素，患者也更能勇于直视他人，而非躲避他人目光。

We actually get a doctor to sign off on prescribing people even a single pill. We often give people only a single dose.

我们实际上让医生批准给人们开药，哪怕是一颗药。 我们通常只给人们一次剂量。

The cost of the drug between $40 and $60 for a single dose will still put it out of reach of many of those who need it most.

药物的成本是每份药物40到60美元，所以那些最需要它的女孩无力承担。

But the odds are against a successful trial, they say, because other control measures such as quarantine could end the outbreak before a single vaccine dose can be administered.

但他们说，试验成功的可能性很小，因为隔离等其他控制措施可能会在接种一剂疫苗之前就结束疫情。

Trials show Johnson and Johnson's single dose jab has an overall efficacy of 66% but the shot doesn't protect as well against a variant first detected in South Africa.

试验表明，强生公司的单剂疫苗的整体有效率为66%，但该疫苗对首次在南非发现的病毒变种的保护效果并不好。