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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

?个税意见已超3万条 起征点各方莫衷一是

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 100天内两度降息 专家:购房者入市意愿增加 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

es to you and yours.以我所有的爱心与真诚祝你及全家圣诞快乐。
No.4: The 1st Useful Mechanical Pet

该项目曾在2006年荣获亚军,并在2008年斩获冠军头衔。

普惠金融和绿色金融
价值增长最快的品牌
The Southwestern African country owns over 20 national parks and has the world's oldest deserts.
萨姆·史密斯是一个风格多变的男人,他可以在奥蒂斯·雷丁、艾瑞莎·弗兰克林和雷·查尔斯以及像艾米·怀恩豪斯和阿黛尔这样的现代偶像的风格中随意转换。
你有D型人格特征吗?有测试表明,拥有这种鲜为人知的性格的人非常善于隐藏情感,甚至他们自己都没有意识到自己很孤单、很焦虑。
在007电影主题曲榜单上,《女王密使》的主题曲获得荣誉推荐。
电视剧版《何以笙箫默》改编自顾漫同名小说,由钟汉良和唐嫣主演,2015年1月首播。它讲述了一对情侣分离7年后重逢,一个执着于等待和相爱的故事。这部小说一直是网络小说中的佼佼者,并于2003年出版。凭借完美情人何以琛一角,演员钟汉良迅速跻身为女粉丝心中的白马王子。
“伦敦商学院拥有优秀的学员群体,国籍非常多样化,具有竞争力和聪明才智,”一位2012级的美国毕业学员评论道:“它也给了我无需参加单纯聚焦美国的美国MBA课程就能(通过交换)在美国学习的机会。”

"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

但随着美国接近实现充分就业,随着通胀向目标水平趋近,“你可以看到收紧政策是有道理的,”他说,“不需要很多就足以改变整个平衡”。
2.Hold themselves and others accountable

但3D版吉祥猴的形象却未能避开炮击,挑剔的网友纷纷吐槽:“这让我想起红绿灯!”;“水墨画的精髓全然不见”;“耳朵下面的两个球是什么呀,太抢镜了……”;“已被它丑哭。”
iPhone 8
科学家们在赋予人体器官原本能力方面投入很深,但是为何要仅限于此呢?
Dirk Philippa, portfolio manager of Fidelity International’s global property fund, has also cut investments in Hong Kong from a 6-8 per cent overweight two years ago, relative to benchmarks, to a 1 per cent overweight position.

Of the 200 nominated companies, 101 are privately-owned, while the rest are State-owned enterprises. The total value of these 200 listed brands has risen by 36 percent year-on-year to reach $696 billion, with the top 10 accounting for 46 percent of the total value.
打造众创、众包、众扶、众筹平台
时间:2009-11-19 编辑:vicki
土耳其外交部愤怒地驳斥了欧盟的批评。它说:“欧盟应该意识到,这种声明助长了极端主义,比如仇外和反土耳其情绪,因为它对避免过分言论和行动以免局势进一步恶化的呼吁,针对的只是土耳其,而不是所有违反外交公约和国际法、从而导致了这种局面的国家。”
Mr Williams notes that early November data from the likes of Brazil, Vietnam, Taiwan and Chile suggests the picture has continued to improve since October.

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

*Guest Actress in a Drama Series: Margo Martindale, “The Americans”
Consider this: Will the experience enhance your knowledge and play to your strengths? Will it introduce you to new concepts and new people? (All great reasons to say yes!) Will it require you to develop new techniques for managing your team or working with more experienced people? Embrace this challenge and get out of your comfort zone.

CDC

数百名为爱痴迷的爱尔兰球迷在球场外集体围着并示爱法国金发女郎。一名仰慕者最后甚至索吻成功。
4. Add Color

威廉凯特夫妇多次让加拿大人等候多时,例如,抵达加拿大时,两人花了20分钟时间才从飞机上下来接受加方欢迎团队的问候。
The new data released yesterday represent the first snapshot of global trade for 2015. But the figures also come amid growing concerns that 2016 is already shaping up to be more fraught with dangers for the global economy than previously expected.
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。
7. How to get a flat stomach

We will promote coordinated urban development above and below the ground, and begin construction on at least another 2,000 kilometers of underground utility tunnels in cities. A three-year initiative will be launched to remove the risk of flooding in highly vulnerable urban areas; and further progress will be made in the development of sponge cities. All these efforts will make our cities more attractive and function better.
这条新闻可能对经常坐飞机环球旅行的旅客们并不稀奇,新加坡的机场再一次做到了。
His first coding effort resulted in an app that played audio snippets from speeches by his idol, Steve Jobs, whose unauthorized biography he'd recently devoured. 'It was rejected by Apple for every reason,' D'Aloisio says now, laughing. 'Copyrighted audio, poor functionality, too simple.' Another early design allowed users to touch a picture of wood, producing a knocking sound. A third transformed a smartphone screen into a treadmill for your fingers. That one earned about $120 in sales on its first day.
Hong Kong has topped the list for the past seven years -- since its first appearance in the survey.

Set over one summer, the film follows precocious 6-year-old Moonee as she courts mischief and adventure with her ragtag playmates and bonds with her rebellious but caring mother, all while living in the shadows of Disney World.
There is "credible evidence" Justin Bieber fathered a child after a backstage encounter with an older female fan, her lawyers have claimed. 一名女性的律师声称
米兰达·兰伯特,《浴室水槽》(Bathroom Sink),RCA Nashville
作为本田的高端品牌,讴歌去年共售出167,843辆,同比微增1.5%。而在美国这一备受豪华车品牌青睐的市场上,丰田的高端品牌雷克萨斯销量增幅为13.7%,宝马增幅为9.8%,奥迪增幅为15.2%,梅赛德斯-奔驰增幅为6.5%。
幸好这类单曲只是《名誉》这张专辑的一部分。在《Dress》(《连衣裙》)这首歌中,她沉醉于令人激动的新恋情里;在《New Year’s Day》(《新年》)这首歌中,她试着弄明白聚会结束后她还拥有什么。

一些最近发表的科学论文说,高空急流中这种持续较长的怪现象,由于全球变暖正在导致北极地区海洋中的冰迅速融化而变得更可能发生,但许多主要的科学家还没有被这种观点说服。
I give all my love to you this New year.值此佳节,献上我对你所有的爱。
Ms Xie estimates that around 40 per cent of the decline in November — about $35bn — is attributable to valuation effects related to the weakening of the euro and other currencies against the dollar in November, rather than outflows.
布朗克斯大广场区或皇后区埃尔姆赫斯特(Elmhurst)的业主们,即将迎来急于寻找下一个未开发市场的买家们的新关注。“你什么时候听到别人谈论过布朗克斯的金斯布里奇(Kingsbridge)?”霍尔斯特德房地产公司的拉米雷斯问,“聪明人正在涌向那里,以实惠的价格买下房子。”
明星大撞衫 看谁更好看(二)

16. Zapier
But the change in Wall Street’s — and Silicon Valley’s — appreciation of Mr Cook is down to more than just the 70m iPhones Apple is expected to sell this quarter or the $42bn in sales generated in the previous.
这家总部位于伊利诺伊州皮奥利亚的重型机械制造商于1月份批准了100亿美元的股票回购,预计将在今年一季度回购17亿股股票,以完成先前75亿美元的回购计划。公司CEO道格o奥伯赫尔曼表示,正在进行的回购是“我们的现金流创纪录的结果”。(财富中文网)
单词commercial 联想记忆:

要不是朝鲜再次进行核试验,朝鲜半岛眼下的大新闻可能就是特朗普选在这个节骨眼上宣布计划退出韩美贸易协定了。
“The Man Who Knew is an impressive work of scholarship,” Lionel Barber, editor of the FT and chair of the book award judges, said. “It’s a masterpiece of political economy and, above all, it’s a great and enjoyable read.”
这位曾演唱过《Royals》(《皇室贵族》)的少年天才在20岁的时候就在联合制作人杰克·安东诺夫的帮助下更上一层楼,把对电子音乐的无限展望与人类的尺度结合在一起,亲手打造了自己的第二张专辑。
The show airs on CBS December 4.
That creates an identity vacuum to be filled.
经济学人智库全球生活成本指数发现,亚洲和澳大利亚共有11个城市跻身全球最贵20城市之列,其余有8个是欧洲城市,一个为南美城市。北美没有一个城市进入前20名。

Chris Washington, played by London-born Daniel Kaluuya, is drawn into the sinister underbelly of a small American community.
In other words, we’ve just had a false dawn on the climate change front.
vt. 以匙舀起

com共同,miss=mit送-共同送东西到指定处-委托com共同,mission(n 使命,任务)-受了别人的委托,说明你得到了别人的信任,所以这是一种使命。
It's the summer of 1983, and precocious 17-year-old Elio Perlman is spending the days with his family at their 17th-century villa in Lombardy, Italy. He soon meets Oliver, a handsome doctoral student who's working as an intern for Elio's father. Amid the sun-drenched splendor of their surroundings, Elio and Oliver discover the heady beauty of awakening desire over the course of a summer that will alter their lives forever.
adj. 平的,与飞机有关的
简言之,2014年种种相反的趋势无法描述和解释。我也不信,多年之后,人们凭借后见之明,能将今年发生的种种事情看得更清楚。
BABYLON (Sundance, Thursday) James Nesbitt, recently seen as the obsessed father of a long-vanished child in “The Missing,” shows up here in a very different role: as a calculating old-school police commissioner who hires an American public-relations expert (Brit Marling) to update the image of Scotland Yard. Danny Boyle (“Slumdog Millionaire”) created this satirical drama, which bears some resemblance to Armando Iannucci’s political comedy film “In the Loop.”