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The Logic Behind A 14-Day Quarantine After Travel Or COVID-19 Exposure : Shots - Health News What's behind the "14 days of self-quarantine" guidance after exposure to someone with COVID-19 or after travel from a place with a high number of cases? Think of yourself as a potential incubator.
NPR logo The Science Behind A 14-Day Quarantine After Possible COVID-19 Exposure

The Science Behind A 14-Day Quarantine After Possible COVID-19 Exposure

A sign on the M8 motorway last week in Glasgow, Scotland. Jeff J. Mitchell/Getty Images hide caption

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Jeff J. Mitchell/Getty Images

楼市现降温信号 上周楼市成交量环比均降23.2%

Jeff J. Mitchell/Getty Images

To stop the spread of the coronavirus, health officials have a favorite refrain: After being in a city or region where there have been a lot of COVID-19 cases, spend 14 days in quarantine even if you feel perfectly fine — don't leave your house. Coming from New York? 14-day quarantine. Arriving in Hawaii? 14-day quarantine. Been in Italy or China or Iran recently? 14-day quarantine.

"That's a long-standing public health practice, and it's called 'traveler's quarantine,' " explains Lindsay Wiley, a professor at American University's Washington College of Law. "Fourteen days is not a made-up number here — it's based on what we know so far about COVID-19, and it's possible that over time we'll see that number change as we learn more [about the virus]."

The 14-day rule is widespread because public health agencies around the world work together on these guidelines. In the U.S., the 人民日报:把制造业带回美国?都别吹牛了! the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

People promoting driverless cars, the most hyped industry segment of the moment, became world leaders in verbiage. Elon Musk claimed to be “laser-focused on achieving full self-driving capability on one integrated platform with an order of magnitude greater safety than the average manually driven car” (ie Tesla cars must stop crashing).
The big winners over the past year in Arizona were the construction and leisure/hospitality industries, which both added more than 10, 000 jobs. Other fast-growing sectors include business services, financial activities and education and health services.

In truth, slower growth of about 8 per cent could be better for China and for the world. More environmentally sustainable and equitable outcomes would ease popular concerns and higher consumption would ease tensions over global trade.

“As long as overall markets remain relatively constructive and transactions continue to be executed well, we continue to expect healthy volumes over the rest of the year,” said David Ludwig, head of Americas equity capital markets at Goldman Sachs.
包括圣诞购物季在内,第四季度的电脑出货量共计7190万台。IDC方面表示,这是自IDC公司开始追踪该数据以来最大的降幅。
克普克警告,这一势头很容易被美联储扰乱。
That's particularly striking in Brazil, with its highly mixed population that has more blacks than any country with the exception of Nigeria. More than half of Brazil's population self-identified themselves as black or of mixed-race in the 2010 census.
There are at least 600 island owners in China, Lin Dong, founder of the China Island Owners Association, estimates.
学员平均年龄:36岁(英语授课项目)
With China now not only “fully integrated”, but perhaps starting to retreat from this position as it brings more of its supply chain onshore, unless Africa can succeed in following China’s path, he adds: “I think we are going back now to a situation where we don’t think there is any particular reason for trade to grow faster than GDP.”
大力促进就业创业。

"The incubation period varies from virus to virus and sometimes from host to host," says Rachel Graham, a virologist at the University of North Carolina's Gillings School of Global Public Health.

For the virus that causes COVID-19 — its official name is SARS-CoV-2 — researchers have found that the typical incubation period is about five days. About 97% of the people who get infected and develop symptoms will do so within 11 to 12 days, and about 99% will within 14 days.

Canadian border agents are handing people entering Canada a sheet from the Public Health Agency of Canada that instructs them to self-quarantine for 14 days and monitor themselves for any symptoms that might signal COVID-19. Selena Simmons-Duffin/NPR hide caption

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Selena Simmons-Duffin/NPR

n. 外表,外貌,出现,出场,露面
在北约1999年对南斯拉夫的空袭中,大西洋联盟对塞尔维亚和科索沃境内数以百计的目标进行了打击。绝大多数目标都没有争议:防空阵地、军队指挥部和其他军事目标。然而对一个特殊目标的摧毁却在世界另一端掀起了声势浩大的反西方特别是反美浪潮。那个目标就是驻贝尔格莱德的中国大使馆。

Perhaps the biggest domestic threat to the 3% growth scenario would be a surprisingly swift hike in interest rates, but from all indications a dovish Federal Reserve is unlikely to take aggressive action in 2015.
排名前50的IT富豪中,有五位是80后,其中包括滴滴出行现年33岁的首席执行官程维。
Over at Huffington Post Mark Gongloff warns: That 'dramatic downgrade of U.S. economic growth in the first quarter revealed the economy's lingering weakness, exposed the folly of Washington's austerity obsession and slapped the Federal Reserve's newfound optimism right in the face.' And with politics deteriorating, it'll get worse.
Issued by the Institute of Social Security Research, Ministry of Human Resources and Social Security, the report shows that the return rate of enterprise employees' pension insurance fund reached 3.1 percent, the highest in seven years.

Google's brand is now worth more than 109 billion U.S. dollars, around 2 billion dollars more than Apple, making it the most lucrative in the world.
He failed to do so and Presti smartly moved on while he could still recoup some value.
3、消极
萨拉考林斯
该榜单囊括了2015年度全球最具影响力、最智慧性感、人气最高、事业最为成功的美丽女性。

An illustration created at the U.S. Centers for Disease Control and Prevention conveys a likeness of the coronavirus that's behind the current pandemic. CDC hide caption

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CDC

Taken alongside data released in the past few days, and it doesn't make things easier. The country is still struggling with deflation and household spending slumped last month. But retail sales data released this morning topped estimates.
在10月份的第三场总统大选辩论中,两位总统候选人没教养地拒绝与对方握手问好或道别。

CDC

改革就是要解放和发展生产力,调动广大人民的积极性,让群众得到实惠,为政之要就是要舍小利、顾大义、顺民心。
当时,身为首席执行官的库克也承受着压力,因为苹果除了从iPhone攫取利润之外,缺乏清晰的产品开发方向。维权投资者嗅到了血腥,开始围攻这家公司,打头的是大卫?艾因霍恩(David Einhorn),接着是卡尔?伊坎(Carl Icahn),他们游说改变苹果的经营和财务管理方式。伊坎施压要求苹果筹集巨额债务,向股东返还1500亿美元,并敦促苹果发布包括电视机在内的更多产品。

我们从中精选了110部新剧和回归剧,又进一步缩减到下面的20部剧(内中没有包括HBO台的《真探》[True Detective],因为它被移到今年晚些时候,亦不包括《权力的游戏》[Game of Thrones]、《副总统》[Veep]和《硅谷》[Silicon Valley],其中《硅谷》将在四月播出第一集,具体日期未宣布)。从《绝命毒师》(Breaking Bad)的衍生剧到《小镇疑云》(Broadchurch)的回归,再到《火线警探》的最终季,冬天真是电视剧迷的好时光。
冲击奖项:很难相信斯特里普得不到最佳女主角提名,而汉克斯在销声匿迹几年后,早该获得一项表演类提名了。
While French and Spanish institutions dominate the top of the pre-experience ranking, UK business schools are the real powerhouses in this category accounting for 17 schools out of 50, ahead of the US (eight) and France (six). Two UK institutions, LBS and Judge Business School at the University of Cambridge, top the post-experience ranking.
Since then, Teach First has put 5,000 graduates into schools, working with more than 1m pupils in low-income areas, helping to raise standards in classrooms, particularly London.

The THE Asia University Rankings for 2017 rated Peking University and Tsinghua University, both in the Chinese capital of Beijing, as the second and third best universities in the continent. National University of Singapore is ranked the best.
While you're studying, pay attention to the material you know will be on a test and write a quick practice question. Start a new document on your laptop and add questions as you think of them.
['m?dist]
Despite relatively low comparative competition earnings and salary, the pair were the two highest earners in regards to endorsement deals last year, with 17-time Grand Slam champion Federer earning pound 41 million.

While Jodie Foster used to opt for the bathroom – “they looked good with the faucets” – she has since moved the two she won for The Accused and Silence of the Lambs to a much more orthodox spot: a trophy case.
France, one of the most visited countries in the world, ranks No. 9 overall. It is No. 2 in Cultural Influence and No. 6 in Power.
Four other domestic movies made it to the top ten list, among them are the third winner Never Say Die, Kung Fu Yoga in the fourth place, the fifth winner Journey to the West: The Demons Strike Back, and Youth in the eighth place.
在这场新闻发布会上,国家卫生健康委员会负责疾病预防的官员王斌称,中国已经在预防和控制艾滋病方面取得了进展。
London, meanwhile, is expected to welcome 18.88 million visitors this year.

vi. 过活,进展,进食
The companies that have tried — and so far failed — to create a sustained ETF boom in Asia say the need for wholesale reform suggests the market will be defined by a protracted effort to convince both the regulators and customers to redraw the scenery.
魔术队倒是可上可下,并且他们现在正在走下坡路。现在,阿龙-戈登和尼古拉-武切维奇被从板凳席上拉了出来并且马里奥-海佐尼亚被雪藏了。
"It's a great conservation success story."
Like many child stars, Maddie speaks of being old before her time.

前“世界小姐”朴雅卡·乔普拉位列2015世界美女榜第九。她是一名印度演员兼歌手,是宝莱坞片酬最高的女演员之一,也是印度最受欢迎、知名度最高的名人之一。她获得过无数荣誉,包括印度国家电影奖的最佳女演员奖项,以及印度电影观众奖的四项大奖。
台风艾玛
尽管购汇限制并未调整,但监管部门现在要求个人详细披露到底要用购得的外汇去做什么。购得的外汇只能用于旅游和购物、留学、境外求医以及咨询服务等经常项目支出。房地产和其他投资性支出属明确禁止之列。
Finance and real estate made up the backbone of home-grown brands, with 38 and 23 companies coming into the list respectively, and accounting for 30 percent of the brands on the list.

The biggest falls in brand values include oil and gas companies, still suffering from low commodity prices, and banks, which face growing competition from rival payment systems such as PayPal — whose brand value increased by 35 per cent (see story page 2).
Inspired by this, researchers and scientists have been working on areas where making things small may mean big results.
For: It picked up the audience award at the Toronto International Film Festival, often a key awards indicator.
杜阿·里帕《杜阿·里帕》
9. Jessica Pare
201110/156988.shtml

但是,房地产经纪公司世邦魏理仕(CBRE)香港机构投资团队主管约翰?戴维斯(John Davies)说,价格下降应会让香港房地产市场变得更加可靠。“这个市场正在显示出机构投资者更了解的成熟市场的特征,”他说。
我们要营造有利于创业就业的环境,不是靠政府去提供铁饭碗,而是让人民群众用劳动和智慧去创造或者说打造金饭碗。
Without a cellphone at hand, Sun tried yelling to get the attention of people outside, but no one responded as time passed by.

在交易截止日到来前,看清楚他们会往哪个方向走这件事将会十分有趣。他们有很多靠得住的球员团结在布鲁克-洛佩兹身边。
No.4: The 1st Useful Mechanical Pet
The TV drama is not based on a novel but the story of a real businesswoman Zhou Ying. Born in the Qing Dynasty (1644-1911), Zhou was the richest female entrepreneur in Shaanxi province at that time.
The best bosses understand that there must be a balance between the company or client’s needs and the needs of his or her employees. The best bosses are willing to listen and talk about any issues an employee may be having because they understand that a happy employee is a more productive employee。
Paris is in third place with 18.03 million forecast visitors.