As of yet, there is no HIV vaccine or cure, and infected people rely on lifelong anti-retroviral therapy to stop the virus replicating.
第二期:在一个较大的人群中,监测药物或治疗方法,进一步评估其安全性及有效性。
Phase II: The drug or treatment is given to a larger group of people to further evaluate its safety and effectiveness.
目前还没有疫苗或治疗方法,而且这些疾病几乎总是致命的。
No vaccines or treatments are available, and these diseases are almost always fatal.
他说,该机构还没有发现疫苗或治疗方法,“我们也不清楚它的传染性或严重性。
The agency also hasn't found a vaccine or treatment,"and we don't properly understand its transmissibilityor severity," he said.
科学家强调,仅凭这项研究的结果并不足以证明大麻是阿尔茨海默病的预防措施或治疗方法。
Scientists stress that the findings of this study alone are not enough toprove that cannabis is a preventative measure or cure for Alzheimer's disease.
但事实上,没有任何药物或治疗方法对任何疾病都是百分之百有效的。
But in fact, no medicines or treatments for any disease are 100 percent effective.
截至目前,尚未有埃博拉疫苗或治疗方法问世,联合国世界卫生组织已经批准加快药物的研发。
To date no approved vaccine or treatment for Ebola exists and the UN's World Health Organization has authorised the fast-track development of drugs.
与疾病、药物或治疗方法有关的新发现正以惊人的速度增加。
New discoveries relating to illnesses, drugs or treatments are increasing at a breathtaking speed.
寨卡没有疫苗或治疗方法,导致轻度发烧,皮疹和红眼病。
There is no vaccine or treatment for Zika, which causes mild fever, rash and red eyes.
在研究显示药物或治疗方法相对安全之后,就进入2期试验,目的是看看它是否具有疗效。
After a drug or treatment is found to be relatively safe, it is tested in a phase 2 trial to see if it is effective.
几乎所有医生都建议人们不要这样做,许多人可以提供建议或治疗方法,以帮助戒烟者。
Nearly all doctors advise people not to, and many can provide adviceor treatments that may help those who smoke quit.
然而,研究正在进行中,以找到一种治愈或治疗方法,阻止疾病的进展。
However, research is ongoing to find a cure or treatment that halts the advancement of the disease.
它还有助于确认可能最适合您的预防措施或治疗方法。
It also helps identify prevention measures or treatments likely to work best for you.
安慰剂是一种在临床试验中使用的非活性药物或治疗方法,很少用于癌症临床试验。
A placebo, which is an inactive drug or treatment used in a clinical trial, is rarely used in cancer clinical trials.
尽管食用迷迭香是安全的,但在尝试任何新的补充剂或治疗方法之前,你应该咨询你的医生。
Though culinary use of rosemary is safe,you should always consult with your doctor before trying any new supplements or treatments.
期临床试验的目的,是看看实验性药物或治疗方法是否安全。
Phase 1 clinical trialsare done to see if an experimental drug or treatment is safe.
生活质量研究往往集中在当时的一种癌症,治疗期间以及特定的癌症药物或治疗方法;.
Quality of life studies tend to focus on one cancer at the time, on the period during treatment,and on specific cancer drugs or treatments;
这些标本被称为振幅标本,可能不需要特殊造影或治疗方法,使他们的详细资料可见。
Such specimens are known as amplitude specimens andmay not require special contrast methods or treatment to make their details visible.
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