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Why A COVID-19 Vaccine That's Only 50% Effective Could Still Help Stop The Pandemic : Shots - Health News Scientists are racing to develop a vaccine that proves "safe and effective." It may not prevent infection in everyone who gets it, but it still could eventually stop the pandemic. Here's how.
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A COVID-19 Vaccine May Be Only 50% Effective. Is That Good Enough?

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A COVID-19 Vaccine May Be Only 50% Effective. Is That Good Enough?

A COVID-19 Vaccine May Be Only 50% Effective. Is That Good Enough?

A COVID-19 Vaccine May Be Only 50% Effective. Is That Good Enough?

  • Download
  • <iframe src="https://www.npr.org/player/embed/911987987/912612344" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Jesse Zhang for NPR
As we get closer to a COVID-19 vaccine, it's exciting to imagine a day when the virus is gone. But a vaccine will not be a magic bullet. In fact, it may be only about 50% effective.
Jesse Zhang for NPR

Actively expanding China's opening up to the world
在周五晚上,金州勇士队以106比94击败了芝加哥公牛队,将战绩提升为14胜0负。库里本场比赛拿下27分,而卫冕冠军也距离NBA历史最佳开局纪录只有一场之遥。
工业企业利润由上年下降2.3%转为增长8.5%;

Dr. Anthony Fauci, chief of the National Institute of Health and Infectious Disease, has央行降息促进楼市升温 有业主售房临时提价160万 when discussing the importance of a vaccine. "We don't know yet what the efficacy might be. We don't know if it will be 50% or 60%," Fauci said during a Brown University event in August.

Jiang Yiyi, deputy director of the Institute of International Tourism at the China Tourism Academy, attributed part of the dropoff in foreign tourists to the strengthening yuan.

A Sicilian Photographer of the Mafia and Her ‘Archive of Blood’
单词accurate 联想记忆:

房价涨太猛! 30日内10城遭住建部预警提示

"When we talk 'vaccine effectiveness,' what we're talking about is, 'How effective was the vaccine at preventing actual disease?' " explains scientist L.J. Tan, chief strategist of the nonprofit Immunization Action Coalition.

Nineteen buildings disappeared in the space of 10 seconds after being demolished by a controlled explosion in China yesterday.

旅友们,注意啦!尽管你可能还没制定好旅行计划,但“2014年最佳旅游目的地榜单”已经新鲜出炉了。近日,著名旅行指南出版商孤独星球出版社发布了“2014最佳旅游”排行榜。下面我们就从排名前十的国家中挑选出一些目的地让你先睹为快。
'It doesn't have carbs, fat or protein so it won't provide calories, unlike sprinkles which have sugar. It's mostly for decoration. It's tasteless,' said registered dietician Alix Turoff.

"It's possible that the [COVID-19] vaccine will reduce the severity of disease" in the other 50% who do get sick, says physician Bill Miller of The Ohio State University College of Public Health. "It may mean that people are less likely to be hospitalized, require ICU care or die."

"That's certainly the case with the influenza vaccine," Miller adds. "People who get the vaccine may still get the flu, but, for the most part, their disease is milder than if they hadn't had the vaccine."

Michael Ison, an infectious disease physician at Northwestern University Feinberg School of Medicine, echoes that sentiment. While it's true that 50 out of 100 people who get the vaccine could still end up getting infected with the coronavirus, "hopefully, the majority will have milder disease," Ison says. But he cautions there's a lot to learn in that regard, given that the studies of COVID-19 vaccine candidates are still very much underway.

"We really need to get some information from the trials that are ongoing to best understand what the impact will be," he says. Ison is a member of the research team at Northwestern that is conducting studies on COVID-19 and on influenza vaccines.

Where Goods Made From Trafficked Wildlife Go
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In order to put this pandemic in the rearview mirror, a large percentage of the population needs to either be vaccinated or gain immunity via an infection with the virus (a much riskier route that would include many more deaths).

When a large portion of the population has immunity to the virus because of this sort of "herd immunity," it's unlikely to keep spreading. Even people who haven't been vaccinated (such as very young babies and those with compromised immune systems) are protected once this level of immunity in a population is achieved, because the illness has little opportunity to spread within the community — most people who run into the virus in this scenario are immune.

如今,蓬勃发展的互联网经济在支撑我国信息技术(IT)行业财富增长方面正发挥着越来越重要的作用。
6. Cutting Down on Saturated Fats Could Preserve Your Memory

So — here's a little math — if 20% of the U.S. population ends up getting exposed to the virus and developing an infection before we have a vaccine (as is The magazine put his net worth at $3.5 billion, down $1 billion from the rankings it issued a year ago. then we would still need an additional 40% of the population to gain protection via a vaccine.

And in order to get 40% of a population immune through vaccination — if you have a vaccine with 50% efficacy — "you're going to have to vaccinate 80% of the population," says Carlos del Rio, an infectious disease expert at Emory University. "So it's not going to happen right away."

‘The Mindy Project’ It doesn’t matter that Mindy Kaling’s comedy on Fox is in its third season and still not a hit, because it keeps improving with age. It has grown from a one-comedian showcase into a very funny ensemble effort, thanks in part to the addition of Adam Pally in Season 2 and jokes about Ms. Kaling’s alma mater, Dartmouth.
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"It's going to take us months to get the entire population vaccinated if they are willing to get vaccinated," he says — which is another big "if." An NPR/PBS/Marist poll in August found that more than a third of Americans — 35% — say they won't get vaccinated when a vaccine comes available.

Ahh, the glamorous life of AT&T: best friends with Steve Jobs, exclusive rights to the iPhone (for now) and carrier of choice on the iPad. So why, with everything going for it, did the stock miss a huge rally? In the year ending April 1, Apple soared 109% and the S&P 500 rose 41%. AT&T? Down 2%. The problem is growth, or lack thereof: little in its saturated wireless business and a decline in landlines, which still accounts for 25% of sales. Unless its high-speed Internet business takes off or the iPad drives new wireless growth, the beatings by Wall Street will continue.
unemployment
美式快餐发源企业、《财富》美国500强公司麦当劳(McDonald's))上周四宣布,它将用200亿美元进行股票回购和派发股息,由此加入了过去18个月企业界的股票回购浪潮。
And the best gig for 2015? That would be an actuary, the people who specialize in financial risk.
骑行背带

"People can be unhappy for many reasons -- from poverty to unemployment to family breakdown to physical illness," the report said. "But in any particular society, chronic mental illness is a highly influential cause of misery. If we want a happier world, we need a completely new deal on mental health."
据Bryan Wang说,腾讯跟最近几年在海外特别是新兴市场销量越来越大的那些中国手机厂商达成了预装软件的协议,这给它提供了助力。
Kevin Durant

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Now, Curry and the Golden State Warriors are right road of adding another accomplishment.
Its alumni enjoyed by far the greatest financial rewards, with an average salary of $469,000 three years after graduation.
丝绸之路上的城市

That comes in spite of official figures released on Tuesday showing China’s exports had contracted for a second straight month in October, suggesting domestic demand is the main driver of price gains for producers.
捷蓝航空公司发言人珍妮·德文(Jenny Dervin)说,“我们75%的航班在东北部起降,无论是纽约还是波士顿,早上航班的延误都可能会影响这架飞机的整条航线。”美国东北部特别容易受到冬季暴风雪的影响,导致航班延误。

怎么做煎饼?
预计将有8900多万企业退休人员和1700多万机关事业单位退休人员从中受益。
遇到别人我能很轻松地和他/她交谈
TextPride已经改名为Swyft Media,并推出了一个能将新品牌表情符号和贴纸推送到短信应用中的新平台。各大品牌需要为此付费,一如传统的广告推广活动。

o Battery power may turn out to be a transition technology. Cost reductions have been slow in coming, and Tesla needs a 30% improvement in order to build the $35,000 Model 3 it has promised for 2017. Toyota’s recent move was eye-opening. It is allowing a battery-supply deal with Tesla to expire and instead will redouble its work on hydrogen fuel cells. The cost of fuel cells is coming down faster than batteries and fuel cell proponents believe drivers will prefer a relatively rapid refuel with hydrogen to waiting hours to recharge their batteries.

Why do we need to test a proposed vaccine in so many people?

Emma Morano’s singular achievement in life may have been perseverance. She lived for 117 years, crediting her longevity to raw eggs and her lack of a husband. She died on April 15.
For democrats, the outburst of such primal emotions is disturbing because they are so hard to contain.
“人们很疯狂,我感到不知所措。”

他说,薪酬是个问题(2010年记者的年薪中值为3.6万美元)。他不知道自己能否靠做记者的薪水供养家庭并送孩子上大学。而且还有一点没错,记者的压力和工作时间可能会令人感到精疲力竭。但他说,我不确定自己换个工作是否会开心,也想不出任何一个工作会像做记者这样让我觉得兴奋或有成就感。
但是我们波士士顿波士顿咨询集团不认为中国本次改革会导致中国经济不稳定。我们相信中国经济在习主席的领导下会持续高速增长。我们相信上个星期的改革(三中全会)会确保中国经济从现在一直增长到(至少)2020年。根据我们已掌握的资料,我们预测中国经济在未来10年会增加4万亿美金(而书中说是6.4万亿。2012中国GDP为8.3万亿美金)。如果加上印度,亚洲两大国未来的增长总量会达到10万亿美金。在此期间,中产阶级会迅速膨胀,进而增强对经济增长的乐观态度。当然,没有人能完美地预测未来,在我们的近期的一本关于中国和印度经济发展的书中(《Trillion Prize:Captivating the Newly Affluent in China and India》),我们也描述了一些经济增长缓慢的例子。不过总体上我们还是对中国的未来保持乐观态度。
从单个大宗商品来看,预计咖啡价格将大幅下跌,目前为1磅1.62美元左右,投资者对阿拉比卡咖啡前景尤为悲观。
A major disruption still could push oil higher, but potential oversupply makes even that less likely. Emerging-market demand once kept supply so tight that any disruptions led to striking price moves, said Ole Hansen, head of commodity strategy at Saxo Bank.
而在非手术整形中,注射肉毒杆菌和激光脱毛依然是最受欢迎的。
[di'sin]
Mass entrepreneurship and innovation

屋内的公共区域包括了两间起居室,室内有几面玻璃墙,可通往一处露台和一座入地式游泳池。房屋中天花板的高度为28英尺(约8.5米);所有房门都是用西班牙雪松木做的。厨房里的不锈钢电器包括一台斐雪派克(Fisher & Paykel)的炉灶和两台Sub-Zero的冰箱,还有不锈钢的橱柜和水槽。厨房与进餐区之间由一个早餐吧台分开,这间餐厅也通往露台和游泳池。
McGowan has also hit out at Meryl Streep, saying that it is 'literally impossible' the actress knew nothing of Weinstein's sexual proclivities until last autumn.
Remember, no one is ever perfectly prepared for every situation. You’ve probably discovered this by now. Your education gave you a foundation for the job, but growth happens in the trenches. Maybe you motivated your team not just to meet the new deadline, but to deliver extraordinary work. Perhaps you realized you had more poise than you ever expected in a client situation. Or, you suddenly discovered that you can capitalize on the relationships you’ve built and become a “rainmaker” for your organization. Before you can learn any of these things, you have to learn to say “Yes.” It’s okay to acknowledge the butterflies in your stomach; however, it’s not okay to let them stifle your growth.
['dev?steiti?]

I used to go fishing in Vancouver with my dad until just a few years ago we found the fish full of cancers. And now we hear about animals and plants going extinct every day -- vanishing forever. 以前和我爸爸经常在vancouver钓鱼,但在近几年却发现鱼的身上到处是癌细胞。我们每天都会听说有的动物和植物绝种,那是永远消失的事情。

When you post your résumé to a job board, such as Monster or Indeed, there's a chance your current employer could see it. In fact, Foss says many HR staffers and managers regularly search for their company names within job board submissions specifically to see if their employees are looking for jobs。
《水形物语》
去年此时,罗丝·麦高恩以强奸罪控告制作人哈维·韦恩斯,在娱乐圈引发轩然大波,众多控告纷至沓来。
“I am so overwhelmed and elated that fur has been banned from London Fashion Week! Progress!” Faith wrote.

哥伦布日在1971年成为美国假日。银行、州政府办公室、邮局和联邦机构都会放假。债券市场休市,但许多商家和股票交易所继续开放。
Writing for a Variety Special: Patton Oswalt, “Patton Oswalt: Talking for Clapping”

Will the vaccine protect older people? And what if I'm heavy?

With age, the immune system often mounts a lesser response to vaccination; that's why, for example, adults 65 and older can opt for a high-dose flu shot — that's thought to help bolster their protection. And scientists also know from prior research that the flu vaccine is 胡润女富豪榜:周群飞领跑 “唐僧”夫人第二. Ison says it's too soon to know if obesity or age will be a factor in the immune response to the COVID-19 vaccine candidates now being considered for use.

In research results so far, he says, "the small, phase 1 data shows that you can generate antibody responses even in older adults, but it'll be these larger studies that will tell us [whether] we need to use higher doses or more doses of the vaccine in certain cases." Results from phase 3 trials of safety and effectiveness are expected in the coming months.