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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

共享住宿监管 不应违背“包容审慎”原则

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 智能照明市场接受度攀升 蓝牙智能灯泡数量增长快 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

If successful, Hurun estimates that Mr Wang’s net worth could soar past $50bn, making him one of the world’s 10 richest men.
打造众创、众包、众扶、众筹平台

vt. 插于,刺入,竖起<

Perhaps just as important, stable or falling prices will boost the inflation-adjusted pay of U.S. workers and gives them more bang for their buck. "It's an unambiguous positive for household demand," said Neil Dutta, head of economics at Renaissance Macro Research. "People will have more money to spend."
电影主人公名叫韦德·威尔逊,由瑞安·雷诺兹扮演。威尔逊是一个拥有超强自我修复能力的雇佣兵,擅黑色幽默。他一直在寻找那个将他投入凶残实验、几乎毁了他一生的人。《死侍》由漫威公司出品, 塑造了一个超常规的反英雄人物。
6、A股保卫战
It scares/intimidates people and they don't know better anyway.
Iron ore imports fell 12.3 per cent by volume in October from the previous month and 4.9 per cent from the same month a year earlier while coal imports were down 21.4 per cent from September and 30.7 per cent from a year earlier, according to Chinese customs data.
布雷克·格里芬
While on the nonsurgical front, Botox and laser hair removal remain firm favourites.
Quanta Computer, ” in October. Samsung is also reported to be working on a 12 to 13-inch tablet, and it seems evident that “these large-size tablets will greatly impact ultrabook demand.” This “iPad Max” will be a defacto laptop with the addition of new cases with integrated keyboards and batteries and could well become a mainstay for high schools and college students who need better content creation tools than thos offers on existing iPads and iPad Minis.

"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

西安咸阳国际机场的准点率为82.3%,在国内所有机场中位居第一。
A string of other Victoria's Secret models have also been banned from the country including Julia Belyakova, Kate Grigorieva and Irina Sharipova - all from Russia - and Ukraine's Dasha Khylstun.

Human bodies are frail, easily damaged packages full of parts that can never fully come back once lost. Luckily, researchers worldwide are working on replacing every bit of the body to make us all cyborgs.
3. 向他人学习。
'Chinese clients are not only buying in Asia but in New York and Geneva as well.'
随着新款iPhone不断刷新自己的发售纪录,库克推出了Apple Watch和Apple Pay等产品,引领苹果进入时尚界和金融界,让这家公司再度焕发出许多人担心已和乔布斯一同逝去的创新精神。苹果今年一年市值的增长,就接近谷歌(Google)的整体市值。

['elim?nt]
Baoneng is believed to have borrowed heavily to fund its share purchases in Vanke and is now the developer’s largest single shareholder with a 25 per cent stake.
4月8日
停盘可能对深证综指起到了良好的作用,跌幅达8.22%的深证综指面临自2007年2月27日以来最大单日跌幅。此外根据FastFT的计算,自1996年12月16日中国股市实施10%的每日交易限制以来,今天这个缩短的交易日将列入深证综指第九大单日最大跌幅。
Erle Spratt, who manages M&G’s Asia property fund, an open-ended investment vehicle, says it is risky to invest directly because assets are not easy to find and price. “It is a very difficult market to buy assets in for investors like us, because developers have very substantial holdings and they tend not to sell,” he says.

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

setting
adj. 青春期的,青少年的

CDC

identified
但是受访者也指出,社交媒体使得他们读的书更少了、视力受到影响、睡眠更少、隐私遭到泄露以及其他一些问题。

不过,10月份社会消费品零售总额增速放缓至10%,低于经济学家的预期。经济学家曾预期,10月份的增速将与9月份一致,同为10.7%。
我去年就说过、今年要再强调的一点是:唯一比预测未来更不招人待见的事情就是公开自己的预言。
The increase of these and other gases from human activity has caused the planet to warm by about 1.5 degrees Fahrenheit since the preindustrial era, which is causing land ice to melt all over the world. The oceans are rising at what appears to be an accelerating pace, and heat waves and torrential rains are intensifying.
Against: To some extent it's divided American audiences, perhaps damaging its hopes of winning best film.

《生活大爆炸》中绝不缺少天才。不只是因为这部剧向观众展示了很多绝顶聪明的科学家,同时,演员玛伊姆·比亚利克还拥有神经学博士学位。因此,演员们想要在剧中展示他们的聪明才智,并将整部剧做到精益求精,这也不足为奇。剧中谢尔顿和莱纳德的公寓里有一块很大的白板,这对铁哥们几乎在处理任何事时都会用到它,从完成从学校带回来的工作,到决定是否等到看完最新一部《蜘蛛侠》再吃饭,都离不开这块白板。
Little wonder, then, that Christie’s, the dominant player in the auction market for modern and contemporary art, is re-marketing its old master paintings as “classic art.” It will be offering old masters and other historical pieces next year at its Rockefeller Center sales in April, rather than January. The week will feature a themed sale that includes 20th-century works. And its “classic art” format will debut in London in July, Christie’s said on Friday.
这一奖项于3月14日在阿姆斯特丹公布,是基于对全球上百万名旅客的调查而选出的。
排名:第五

Episodic memory is also known as long-term memory, and the researchers approached the study of exercise in a different manner than previous studies. Other studies examined the impact of aerobic exercise conducted over many months, but this study simply asked participants to lift weights a single time. During the test, half of the participants were asked to use a weight machine before recalling a series of images they were shown at the start of the test. The other half of the participants were also asked to recall the images but without having engaged in any strenuous activity before the recall session. In demonstrating the memory improvement for the participants who engaged in just a single session of weight lifting, the researchers were able to show that improving one's memory through exercise didn't take hours of dedication in the gym. The next time you have the opportunity to lift weights or someone tries to convince you to join the gym you might just want to take him or her up on the offer.
6. Am I maintaining healthy relationships? Is there a relationship in your life that needs a little extra care and attention? Do you need to right a wrong with someone? Try to stay aware of how you’re treating the people in your life.
Over time, this ethnic blend has led to an uncommon harmony among the current squad, whose young players -- notably Eden Hazard and Romelu Lukaku of Chelsea, and Adnan Januzaj 贾努扎伊of Manchester United -- are the envy of many of their competitors.
This compared to a decade ago when there were six Asian cities, 10 European cities and four US cities in the top 20 of the list that calculates living costs in 131 cities in 93 countries and is used by companies for costings when relocating staff.
Yes Man is a heartwarming blockbuster that explores what would happen if you answered "yes" to every question in your life. Jim Carrey's character takes on this challenge and ends up learning Korean, taking flying lessons, and getting promoted. He goes from being a pessimistic divorced man to an exciting trendsetter and finds a new girlfriend in the process. It might sound like fiction, but this movie is loosely based on a memoir of the same name by freelance radio producer Danny Wallace.

《琅琊榜》的意外爆红让这部戏成为2015年秋季档电视剧中的翘楚。同样改编自网络小说(海晏著)的《琅琊榜》2015年9月首播。该剧由胡歌、刘涛等人主演,讲诉了才冠绝伦的谋士梅长苏为昭雪多年冤案进行的一系列斗争。虚构的人物和朝代让改编剧集巧妙地躲过了历史准确性上的责难。它精美的场景布置和无懈可击的故事情节受到了广大观众的一致好评。
US billionaires hold 540 spots on the list, more than any other country in the world. In second is China with 251 and German with 120.
6. How to play guitar
周五,现代和爱茉莉太平洋的股价出现下跌,在首尔下午晚些时候的交易中分别下跌4.4%和12.5%。
这只漂亮的伯曼猫在Ins上有超过128000名粉丝,而且它还是拉格菲尔德众多设计的灵感。

"Wholesale food prices suggest that pork, vegetable and fruit price inflation all eased last month," said Capital Economics before the figures came out. "
根据路透社(Reuters)基于中国国家统计局(National Bureau of Statistics)计算得到的加权平均值,10月份中国新建住宅平均价格同比上涨12.3%,
After working for half a year, the average monthly income for 2014 graduates is RMB3,487, a significant increase from RMB3,250 in 2013 and RMB3,048 in 2012.
Now a white-haired grandfather, Belmonte has never regretted missing the 1950 match, particularly since his mother died just a few days later. "I decided not to go, and it was a good decision," he told the reporters.

Its Academic Ranking of World Universities is made up of six objective indicators, including the number of alumni and staff winning Nobel Prizes and Fields Medals, the number of highly-cited researchers, the number of articles published in the journals Nature and Science, the number of articles indexed in the "Science Citation Index", and their per capita performance.
The three-day China Development Forum 2016 kicked off in Beijing.
The Warriors and Timberwolves will arrive in Shenzhen on Oct 5 and will play at the Shenzhen Universiade Center.
[k?m'pein]
vt. 补给,供
Here's how the pay of prime ministers and presidents of the world's biggest economies stacks up, according to official data and converted into US dollars at market rates.

There’s nothing worse than a boss who says one thing and does another, and nothing better than one who keeps his word. Just as managers must trust their team, employees must trust their boss to have their best interests at heart。
The report ranks brands based on financial performance, its influence on customers, and its power to command a premium price or drive company sales.
总排名76位的新加坡管理大学(Singapore Management University)李光前商学院(Lee Kong Chian School of Business)是首家进入这一排行榜的新加坡商学院。今年共7家亚洲商学院上榜。李光前商学院校友在亚洲商学院中最具国际流动性。他们在流动性指标方面排名第25,比在亚洲商学院中流动性排第二的台湾国立中山大学(National Sun Yat-Sen University)高57位。

莱斯特大学研究人员表示,这副骸骨的DNA同理查三世一名姐妹的后代吻合,而且骸骨的脊柱弯曲,有战争留下的创伤,这都与历史记载吻合。
adj. 被识别的;经鉴定的;被认同者 v. 鉴定(id
2016年空前的海外收购潮消耗了中国大量外汇储备,随后监管部门开始严格限制境外交易。今年8月,中国政府出台了新框架,鼓励那些符合北京战略重点的交易,并限制涉及娱乐、体育和豪宅等方面的交易。
“她确实带着假发和皇冠,穿着美美的裙子,但是我不会给她用喷雾晒黑剂或者给她涂上满脸的化妆品——我会等到她五岁的时候再给她用这些。”
The controlled test takes two-and-a-half hours and, according to theories, Nishi's score and subsequentIQ of 162 would be two points higher than famous physicist Einstein.