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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

四川眉山:管住扬尘 建31个“清新”工地

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 一个月卖不出一件家具? 乐从家具前景不容乐观 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

《the Post》
200911/88512.shtmlThe price of Chinese zodiac stamps commemorating the 1980 Year of the Monkey have rocketed to a historical high for a number of reasons, according to National Business Daily.

报告同时也显示,双十一已经成为由淘宝,天猫,京东领衔的电商的最大购物活动。

The average value of the household appliance sector soared 74 percent, showing the biggest increase among top 10 sectors. E-commerce and retail followed, with their value up 69 percent. The medical health care sector climbed up 32 percent. The financial service sector increased 18 percent and the alcohol sector rose 17 percent. Real estate gained 15 percent and food and drinks were up 11 percent.
排名部分基于校友们在职场上的成功程度,衡量标准为薪资数据。
You might want to hope that people shared these articles as a joke. I want to hope that. But we can’t: the analysis points to a recent BuzzFeed and Ipsos Public Affairs poll which found that 75 percent of Americans (84 percent of Republicans and 71 percent of Democrats) were easily tricked by fake headlines. What a fantastic year for fact-checking and rational thought and Mark Zuckerberg’s self-awareness.
Since Sunday, viewers everywhere have been in mourning, at least judging by the Twitterati.
报告还发现,在“智力资本和创新”及“技术成熟度”等指标方面排名较高的城市综合排名也很高,这很明确地表明,技术上先进的城市更有可能成为“机遇城市”。
我的杂物是不是太多了?拥有太多的物品最终会给你带来压力。分清楚你肯定需要和你可以丢弃的物品。
People with near-perfect memories actually exist, and they have something called an "eidetic memory," which means they can recall a remarkable amount of information from their past experiences. Interestingly, many people assume having an eidetic memory means having a "perfect" memory, but even these superhuman memory machines can have some trouble recalling absolutely every detail with crystal clear accuracy. However, that doesn't mean you can't emulate these memory superstars and improve your own memory and protect yourself against age-related diseases and maladies.
其中,国产动作片《战狼2》位居榜首,成了中国史上收入最高的影片,门票销售狂揽56.8亿元。

"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

Arizona, Texas Head List Of Best States For Expected Job Growth
立场:呼吁进行移民改革

5. “In Jackson Heights” The latest from the brilliant Frederick Wiseman has a three-hour-plus running time; maybe this explains why once again the dunderheads at the Academy didn’t put him in contention.
不断上演的进球大战正是本届世界杯精彩绝伦之处。
Coming of age: in the modern banlieues of Paris and in San Francisco in the 1970s. These movies dramatize the harrowing, thrilling passage to womanhood with unsparing honesty and infinite compassion.
5.谷歌网站管理员工具

答:其实我并不怎么关心作品火不火的,就是专注于自己的作品而已。每次我关注的就是要怎样用最好地推进剧情而已。我关注的是行为和故事,不是受欢迎程度。
Apple's brand value rose 5 percent from a year ago to $178 billion and Google's brand value was up 11 percent from a year ago to $133 billion, according to the report.
The Thai capital has bounced to the top of an annual list of the world's most popular travel destinations after spending several years in the wilderness (of second place).
Scientists get couples into the lab and looking at their stress levels while they have “difficult” conversations, finding that couples that deal with stress with positive emotions like laughter become less stressed, and tend to stay together for longer.
更重要的是,这些发明在将来或许还能投入生产,造福人类。

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

进口价值的增长是在强势美元推高进口商成本的情况下实现的。11月份以人民币计算的进口增长幅度则为同比增长13%,反映了人民币的相对弱势。
飞速变化的效应

CDC

At a Senate committee hearing on extrajudicial executions in the Philippines, Ronald Dela Rosa said 712 people had been killed in police anti-narcotics operations since July 1, the day after Mr Duterte assumed the presidency, while 1,067 deaths were being investigated as drug-related vigilante killings.
葡萄牙诺瓦商业与经济学院(Nova School of Business and Economics)巩固了去年的强劲表现,排名进一步攀升14个位置,排在了第17位。

For the students interested in comparing school options around the world, US News released the fourth edition of its annual Best Global Universities rankings.
英国《金融时报》2017年高管教育排行榜列出了全球85个最佳定制课程和75个最佳开放课程。排名主要基于学员和客户的满意度以及学校收入增长、国际化程度和师资多样性等指标。
How do you know if you need to drink more water? Well, there's a list of factors: dry lips, dizziness, headaches, low urine output and increased thirst. Yet, this smart bottle wants you to listen more to your phone than to your body.
明星们的私家飞机刚停稳,“老爹身材”一词便在互联网上走红。男性微胖的身材成为潮流,荧幕上不少这样的例子。法新社(AFP)Deborah Cole(黛博拉?科尔)写道:“杰拉尔?德帕迪约(Gerard Depardieu)在《爱之谷》中的形象便是“大汗淋漓、气喘吁吁地打着赤膊”, 华金?菲尼克斯 (Joaquin Phoenix)在 伍迪?艾伦(Woody Allen)的新片《非理性的人》(Irrational Man)中也露出了他那胖胖的肚子。科林?法瑞尔(Colin Farrell)出席《龙虾》(The Lobster)的首映红毯时,看起来如往常一般衣冠楚楚,然而在剧中他却大腹便便。为了给荒诞主义者欧格斯?兰斯莫斯(Yorgos Lanthimos)的黑色喜剧中的孤独主角增肥,法瑞尔大量进食高热量食品,其中包括融化了的冰淇淋。他告诉《好莱坞报道》(Hollywood Reporter),“在早晨10点享用2个芝士汉堡、薯条和可乐可不那么有趣,”他补充道,“不过我喜欢芝士汉堡。”

Dachis says: Adidas added more than 34 million new fans and followers in just 12 months this year. The company put that audience to good use and benefited from high levels of positive discussion all year long.
然后,他用那把小提琴砸穿了那幅画。
Tongzhou was designated as the site of a new administrative center for the municipal government to help relieve the current heavy pressure on public services in downtown Beijing, where the central government is located.
尽管通常每年的十大榜单中至少有四款引擎会在第二年再次上榜,但去年动力强劲的引擎中只有两款仍然出现在2014年榜单上,它们分别是本田雅阁(Accord)动力十足、节能高效的3.5升V6引擎以及奥迪S5所配备的强劲机械增压3.0升V6引擎。

祝贺佳节。
Across all European schools, the average salary of alumni three years after graduation ranges from $143,000 for executive MBA graduates to $54,000 for MiM graduates. MBA graduates earned on average $123,000. Spanish and German MiM graduates enjoyed the highest salary three years after graduation, both $70,000 on average. French MBA graduates and Swiss EMBA graduates top their salary scale, with average salaries of $137,000 and $166,000 respectively.
A Former First Lady Presses On for a Tolerant, Feminist Islam
The banking industry has been experiencing a low profit growth period and will be for a long time, the National Business Daily reported, citing an expert. He said the banks' yearly profits growth reached 35 to 40 per cent in the past dozen years, but now the growth had slowed to less than 1 per cent, with some banks even recording a loss.
3. The root cause of eczema has finally been identified. Scientists have tracked down a series of proteins and molecular pathways that lead to this insufferable skin problem, revealing that the protein filaggrin isn't the sole culprit we thought it was.

Capsized ship righted
[l?un]
谎言5:你穿这条裙子真好看。说谎原因:总比说真话被别人扇耳光要好吧。
The issues addressed in friends — relationships, careers, and friendship — continue to be relevant to today’s youth.
President Obama's Cabinet, of which Clinton was once a member, currently comprises seven women and 16 men.

Challenger说:“工作总会有的。公司总是在招聘,只是竞争更加残酷了。”
香港科技大学(Hong Kong University of Science and Technology)和凯洛格管理学院(Kellogg School of Management)合办的中美EMBA项目重新夺回英国《金融时报》100个最佳EMBA项目排行榜的冠军宝座。
周二公布的数据显示,去年12月,中国规模以上工业企业利润同比下降8%,是2011年末以来的最大降幅。11月数据的同比下滑幅度为4.2%。
Social scientists, after crunching data from both sides of the Atlantic, have discovered something surprising: it’s not the amount of racial or ethnic diversity in a community that predicts white resentment and support of anti-immigrant policies, but the pace of change.

帕拉莫尔《欢笑过后》
Wishing you all the blessings of a beautiful season.愿你拥有美丽的新年所有的祝福。
The University of Pittsburgh team used stem cells made from skin to make MCPs, a special kind of cell that acts as a precursor to cardiovascular tissue. They then placed these cells on a 3-D scaffold designed to support a mouse heart. Within 20 days, the new heart began beating at 40 to 50 beats per minute.
But Anne Simpson, senior portfolio manager and director of global governance at the US pension fund Calpers, a prominent Apple shareholder, believes his ethical stance is more than just posturing. “He has a charming disregard for showmanship,” she says. “Tim Cook applies this Apple notion of elegance and excellence to these new arenas.”
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.
她曾为Glitzy Girl、Sally Miller和Purple Pixies等服装公司担任模特,也为《Teen Vogue》《Cosmopolitan》《Elle》和《Seventeen》等杂志拍摄照片。

激情、毅力和积极的心态,是创业成功的关键。培养这些特质要有天赋和一些小技巧。
Justin Bieber's split from Selena Gomez was the most enquired-about relationship bust-up while Victoria Pendleton beat Georgia Salpa as the most searched-for participant in a reality television show.
Wang Chunfa, executive secretary of the China Association for Science and Technology, has expressed deep concern over the retraction, which came just days after he met in Beijing with Arnout Jacobs, the head of Springer Nature for Greater China.

在中国永久居留的外国人在投资、购房、受教育等方面享受中国公民同等待遇。
n. 大赦,特赦
第一次出现在人体内。禽类可能是病毒来源。Appeared for the first time in humans. It caused illness in two children in Hong Kong, with poultry being the probable source.
天生脑瘫的余秀华原本过着平静的乡村生活。现在,她在文坛引起了轰动,她描写情欲的生动诗歌“有明显的血污”。
7. 克里斯汀?斯图尔特