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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

一线城市房价上涨 是否仅是昙花一现?

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 西安七部门联手治理房地产市场乱象 已对15家房企暂停网签 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

《巴克斯托姆》(Backstrom),Fox,1月22日播出。去年,福克斯推出根据一部澳大利亚电视剧《法庭浪子》(Rake),由格雷格·金尼尔(Greg Kinnear)主演,讲述一个自毁律师的故事。那部剧没成功,但现在Fox又试着推出了一部根据瑞典系列小说改编的自毁侦探的故事,由《办公室》(The Office)男星雷恩·威尔森(Rainn Wilson)主演。这部剧由Fox的系列剧《识骨寻踪》(Bones)的编剧哈特·汉森(Hart Hanson)主创,但在试播集里,威尔森饰演的巴克斯托姆看上去更像豪斯医生(House),而不像《识骨寻踪》里的角色。
demo人民+-ic…的]→人口统计的

这使得“教育科技”初创公司(比如硅谷的Coursera和伦敦的FutureLearn)在市场上有了立足点。预计它们在2018年将继续这种模式,或许会与某个实体高等教育机构合并。

但是这并没有阻止科学家在实验室发展人造大脑。今年奥地利的科学家仅从干细胞开始,成功地创造出等同于9个周大的婴儿的大脑。目前,这些大脑只有豌豆大小,也不能思考。阻止这些试验品发育成具有完全功能的大脑的因素是它们没有血液供给。
《财富》美国500强公司苹果(Apple))已宣布,将从现金中拿出300亿美元用于股票回购。这个消息让投资者很高兴:股价暴涨,甚至在消息发布一周后,这只股票相对于标准普尔指数在这7天上涨了12%。苹果有一项规模更大、总额高达1300亿美元的资本回报计划,将一直延续到2015年,而这些回购就是这项计划的一部分。
If successful, the funding would underline the rapid growth of the sector this year. In April, Lufax raised $500m at a $10bn valuation.
网上的撤稿公告共列出了107篇论文及524位作者,他们几乎都是中国临床肿瘤专家。所涉及的医院都是顶级公立机构。
5. 范冰冰 1700万美元
王春法说,在出版前应加强审查和评估。
将这些类似的信号通过编程的方式写入造假肢,会给截肢者带来和以前研发出来的产品完全不同的假肢。
Global movie earnings hit a record $38.3b in 2015, with China accounting for $6.8 billion, a nearly 50% increase over the previous year, according to data from the US National Association of Theatre Owners.

"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

Others who made the top ten include Amazon's Jeff Bezos at fifth on the list, Mark Zuckerberg of Facebook at sixth, Oracle's Larry Ellison at seventh, Michael Bloomberg at eighth, and tied for ninth are David and Charles Koch.
"Some geniuses in the internet industry created miracles, but that does not tell the whole story," said Chen. "Business has its own rules. Before you start up, you have to know how to produce products, how to sell them, how to manage a company. Those lessons you cannot expect a fresh graduate to know."

The two extraordinary sex toys will go on display at an upcoming exhibition at the Asian Art Museum of San Francisco in the United States.
7. How to get a flat stomach
press挤压+ure→压力
在你面试应聘者的时候,有些人得分较高,你认为应该他能得到这份工作,但是招聘主管却改掉分数,招那些他喜欢的人。

May you have the best New Year ever.
13 Reasons Why
7) I am often in a bad mood 0 1 2 3 4
全球新职介绍公司Challenger Gray & Christmas 的执行总裁John Challenger 说:“经济不景气之后,总会有个就业复苏期,但是我们的确对2010年的就业率不抱多少乐观态度。”
Performances by Kelly Clarkson, Tim McGraw, Taylor Swift, Carrie Underwood and Miranda Lambert rocked the house at the MGM Grand Garden Arena.

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

同时,11月服务业PMI指数是51.2。此前的10月份该指数为52。本周早些时候报出的11月份制造业PMI指数为48.6,高于48.3的预期。10月份该指数则为48.3。
Mr Cook’s decision to expand its cash return programme of dividends and share buybacks helped to defuse the situation with the activists, returning $94bn to date. In the end, he stared down the challenge just long enough for the next wave of iPhone growth to hit and new products to emerge from Sir Jonathan Ive’s workshop.

CDC

“I thought teaching wasn’t a proper career option. My teacher said I’d need to have a high boredom threshold if I wanted to become a teacher,” he recalls.
单词calendar 联想记忆:

In this emotional comedic drama, a selfish car dealer named Charlie Babbitt learns that he has a brother after his estranged father dies. He is upset to learn that said brother, Raymond, received his father's $3 million estate despite living with severe autism that has left him in a mental institution. Charlie learns that Raymond is a savant with outstanding capabilities for mental math and takes advantage of this skill by using Raymond to count cards in Vegas.
Consumer prices continued to rebound from an August dip, accelerating 0.2 percentage points to 2.1 per cent year on year, bang-on analysts’ median forecast.
This is all bad news for investors, just as America's 30-year bond bull is ending.
So what does 2015 portend? Here are some educated guesses.

Benito Mussolini and Adolf Hitler are case studies of demagogues turned into despots.
The average pay for executives in educational companies was the lowest, just over 2.8 million yuan and about one tenth that of their counterparts in the financial sector.
The latest list showed that University of Hong Kong ranked third and University of Macao seized the sixth place.
It was also the "most liked" tweet of the year, with 4.59 million likes.

tunn管道+el表名词,“人或物”→隧道
在这部1998年的古装剑侠动作电影中,安东尼奥·班德拉斯扮演了一个无聊的贵族,他有时会扮成蒙面歹徒,从腐败领导人手中拯救加州的墨西哥平民。虽然佐罗听起来可能像个普通的老派超级英雄,但是《佐罗的面具》依据的故事大部分来源于现实世界中,一个叫乔伊·穆里埃塔的亡命之徒。
We will boost the development of modern agriculture.
adj. 优雅的,精美的,俊美的
愿明亮喜庆的新年烛光温暖一年中的每个日日夜夜,祝你欢欢喜喜度新年!

But yeah, of course they should tank. And so should the Kings. Again. And the Heat. And the Magic. These are mediocre teams, at best, without high upsides even in the most optimistic projections.
如果这届奥斯卡最佳影片的提名数有9或10部电影的话,那么《逃出绝命镇》能占一个。乔登?皮尔的剧本应该一定会被提名。
Tinashe featuring Devonté Hynes “Bet” (RCA)
自动驾驶汽车:研究人员正在研究能让汽车自动倒车入库的设备,让你甚至不必坐在车里就能完成倒车。这样你就不必在不小心刮蹭到别人的车时,往人家的雨刮器下面留张字条,并附上你的电话号码了。
她说:“1到10,我觉得自己只能拿9分,因为我一定还有提升的空间。我知道我可以走更远。”

Thirty-six Chinese brands have made it onto the list this year. Among them, eight are in the top 100, including the State Grid Corporation of China (36), the Industrial and Commercial Bank of China (ICBC) (40), Tencent (43), China Central Television (CCTV) (62), Haier (76), China Mobile (79), Huawei (81) and Lenovo (90).
低通胀反映出需求趋弱,不利于人们增强对经济转型(从侧重制造业转向侧重消费)的信心,但另一方面,这种局面为中国政府实施刺激措施留出了空间——假如它希望为经济提供更大支持的话。
昨日,108名表演者身着熊猫服装,穿行在伦敦的街头,向大众宣传这种惹人喜爱却面临灭绝危险的黑白物种。
Bringing harmony to Apple’s internal fiefdoms has not been easy. There is still “huge tension” inside Apple, according to one person who has worked with the company for many years. “That tension is something he uses to run the company but it can be dangerous.”

No one in Detroit has forgotten the snowstorm of 1999, when airplanes were mired for hours on the tarmac at Detroit Metropolitan International Airport. Likewise, US Airways encountered its own holiday mishap in 2004-05, when more than 72, 000 bags were lost or damaged.
年龄:45岁
如果你想要一个有屏幕的冰箱,不妨把iPad粘在冰箱上。三星在今夏发布了可以连接Wi-Fi的智能冰箱,来帮助管理杂货和给家庭成员留言。
其中还出现了一些长期霸榜的易泄露密码,出于某些原因,网友们一直热衷于使用这些密码。
在气候学的史册里,2014年超过了2010年,成为最热的年份。有记录以来的10个最暖年份都是在1997年以后,反映了地球不断变暖的趋势,科学家说,这种变暖是人类活动的结果,并对人类文明和大自然构成了深远的长期危险。
沙特王储穆罕默德·本·萨勒曼表示,多数被捕人员已同意归还部分非法获得的钱财,以换取自由。

节目9 相声《这事儿不赖我》,曹云金 刘云天
9.Bellarine Peninsula, Australia
自2014年10月以来,新兴市场出口额(以美元计算)一直下降,即使没有2008年至2009年全球金融危机期间的下降幅度极端,也比当时持续的时间要长得多,如第一张图表所示。

5.卡特彼勒
intentionally
There are 15 Chinese brands in the top 100, one more than last year and a sharp rise on a decade ago, when China Mobile was the only Chinese brand.
报道称,代理商和投资机构正纷纷涌入该行业,对世界上第二大经济体的平台造成了额外改变。
8.Form or Join a Study Group