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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

上游产业回暖 四川家居行业迎来复苏时节

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 房价无法抑制上涨真相?2000年来M2暴涨10倍 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Roula Khalaf
While the debate was supposed to be solely about foreign policy, domestic concerns were never far from the surface and the candidates took every opportunity to pivot to their stump speech attacks over the economy and tax. The same was true in the spin room afterwards where both campaign teams dispensed quickly with debate comments and moved instead to analysis of the state of the race in swing states.

China’s forex reserves — the world’s largest — have long been seen as the ultimate guarantor of financial stability, since they can be used to hedge against capital flight or to bail out domestic financial institutions struggling with a rise in bad debts.

appear出现+ance表名词,“性质,状况”→出现;外表
Bedrooms are up a curving staircase. A loft-like library overlooks the central atrium. Walls of glass in the master suite and its en-suite bathroom take in acres of marshland. The suite opens to a sun deck on the water side of the house. Both other bedrooms also have en-suite bathrooms. The lower level is finished as a gym, with a half bath and a garage with space for several cars.
Which showed month-on-month prices had fallen – albeit marginally – in Beijing, Tianjin, Shanghai, Shenzhen, Xiamen and Zhengzhou during the second half of the month.
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普华永道表示:“我们目前正在调查如何能发生这样的事,并对发生此事深感遗憾。被提名人、电影艺术与科学学院(the Academy)、美国广播公司(ABC)、以及吉米?基梅尔对这一情况处置得体,我们表示感谢。”
城镇新增就业1100万人以上,城镇登记失业率4.5%以内;
The PPI fell 5.3 per cent year-on-year in January, moderating from December’s -5.9 per cent pace. PPI has remained in negative territory since March 2012, reaching a low of -5.9 per cent for the five consecutive months since August 2015.
税:2014年约为16866美元(约合人民币10.8万元)

"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

['medl]
Meanwhile, figures such as Wang Jianlin, China’s richest man, have raised concerns about Chinese state-owned enterprises’ investments in Europe, arguing that they lack international management standards.

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Cheryl Boone Isaacs, Academy President
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。”
4. Stop eating, gotta get those cheekbone sharp enough to cut butter.

安联:小奥运会
[i'nili]
You're right to be paranoid. The company is always watching you, and there's a record of everything you do: every phone call, every text, every tweet and instant message. At most companies, they save that data forever.
The company advises consumers or businesses using any of the passwords on the list to change them immediately. Splashdata warned that even passwords with common substitutions like "dr4mat1c" can be vulnerable to attackers' increasingly sophisticated technology.
Jules Pieri

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

● 一群非法投票人在六个投票点出现给希拉里投票,你们还以为选民骗局是假的吗?
The QUBE will remind you to recycle, monitor when the trash was last taken out, and tell you to change the air freshener. These are all things people usually remember to do anyway, by the smell and all, but now there's a $300 "elegant" stainless steel can that'll constantly remind you with annoying mobile alerts.

CDC

The promotion of urbanization in central and western China has also attracted many members of the labor force from coastal cities in East China to inland regions, where the cost of living is much lower, Peng explained.
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This means war: Christopher Nolan's second film not set in the present (or future) is an epic tableau about the rescue of hundreds of thousands of troops from the French coast. Tom Hardy, Mark Rylance, Kenneth Branagh, Cillian Murphy and, er, Harry Styles, star. Think Saving Private Ryan, but saltier.
But that idea did not bring Brexit to the UK or Mr Trump to Washington.
but that was markedly lower than the previous month’s rise of 8.2 per cent.
"We're excited to have these talented artists showcase the powerful contribution music makes to filmmaking," the show's producers Michael De Luca and Jennifer Todd announced in a statement on Friday. "It's a privilege to welcome them to the 90th Oscars stage."

在全球前50名女富豪中,中国大陆的女企业家占56%。
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“双创”可以说是应运而生,在全球化、“互联网+”的时代,我们推动“放管服”改革,也促进了“大众创业、万众创新”。
何塞安东尼奥梅亚德(José Antonio Meade)会成为下一任墨西哥总统吗?

11. Am I dwelling on the past? It is very tempting and almost involuntary to look back on the past and obsess over something we regret or something we miss. Learn to let go and only focus on what’s happening right now, and on the choices you will make today.
皮肤辛苦的担任着包裹我们和保护我们整个身体的责任,因此它也成为了最容易被伤害的器官。当皮肤被烧伤或者被割破,你最快的选择是从身体其他部位移植一部分过来。然而,感谢斯坦福大学科学家的研究,一种能有效替代人体皮肤的材料,不久后将面世。
1985年2月是全球表面温度低于给定月份的20世纪平均值的最后一个月份,这意味着所有年龄在30岁以下的人都没有经历过低于平均温度的月份。最后一个低于20世纪平均温度的年度是1976年。
Japan, ranked No. 5 overall, is the top performing Asian country. It ranks No. 5 in Movers and No. 1 as the most forward-looking country.
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Chinese companies filed 7,150 patents with the European Patent Office (EPO) in 2016, a year-on-year increase of 24.8%, according to figures released by the EPO last Tuesday.
2.德语:增长了22.2%
有些人会充分运用科技的力量:
The joint programme delivered by IQS of Spain, Fu Jen Catholic University in Taiwan and the University of San Francisco saw the biggest rise. Its Master in Global Entrepreneurship Management jumps 34 places to 43rd, making up for a drop of 19 places the previous year. The only programme to be delivered on three continents, it is ranked top for international course experience.
China has broken into the world's top 25 innovative economies for the first time, thanks to investments in education and research and development that have translated into new patents and licenses, a study said on Monday.

Industry Kitchen的行政主厨布劳略?布耐对《城里城外》杂志表示,这份披萨的灵感来源于纽约的金融区,他将那里称为“堕落的缩影”。
视频编辑很可能是得益于促进摄影技术工作增长的相同的因素。很显然这一工作的增长是伴随着有经验的吸引人的网站设计的日益增长需求而出现的。
Millions of people working or studying out of their hometowns will be hurrying home to reunite with families as the Chinese Spring Festival approaches. This long-held tradition is the main reason for the rush. The other is that the holiday is one of the two week-long holidays of the year, a perfect travel time for many people. The rush usually begins 15 days ahead of the Chinese Lunar New Year and 25 days after that.
Commodity-linked sectors have been especially hard hit in recent months. Mining-sector earnings tumbled 23 per cent last year. Oil and petrochemical refiners also saw profits slammed. Despite the fall in crude prices, many refiners remain subject to crude prices agreed to before the recent price drop, even as prices for their output fall.

《ScreamRide》
Australia is the No. 8 Best Country overall. The Land Down Under – No. 4 in Quality of Life and No. 9 in Adventure – also ranks in the top 10 in terms of education.
His strategic shift away from corporate strategy was in spite of the fact that his own school had deterred him from making a career in education, even though he had worked as a private tutor.
你如何知道你需要喝水了?这有一系列的诱因:嘴唇发干、头晕、头痛、尿量低和口渴。然而,这种智能瓶能在你的身体意识到缺水前就提醒你。
最佳喜剧类导演:吉尔?苏洛威(Jill Soloway),《透明家庭》,“地上的人” (Transparent, "Man on the Land")
这封信件在十天以前神奇般的被寄到了加利福尼亚大学的宾夕法尼亚州分校,这所大学位于宾州的东北部。寄给Moore先生的这封信是1958年2月20日的信件,上面还写着“永远爱你的Vonnie”。

Only three Hollywood productions, 'Furious 7', 'Avengers: Age of Ultron', and 'Jurassic World', made it into the top 10 at the Chinese box office in 2015.
由于最新一部007系列小说给詹姆斯·邦德(James Bond)进行了政治正确的大改造,能言善道、烟不离口、大男子主义的邦德形象可能将成为过去式。
To Craig Bennett, Abigail Baird, Michael Miller, and George Wolford for demonstrating that brain researchers, using a combination of complicated equipment and simple statistics, can find meaningful brain activity anywhere, even in a dead fish.

According to the Chinese Academy of Social Sciences, China's migrant workers account for around 50 percent of the labor force in industrial and related sectors. Yet they don't enjoy equal rights as city dwellers because of household registration requirements.
Sweden’s foreign minister, Margot Wallstrom, a proponent of a “feminist foreign policy,” opened up to Ellen Barry about her abuse at the hands of an old boyfriend when she was a young woman, something she had never said publicly before.
赫梅尔还指出,2008年油价飙升的局面(当时油价升破每桶140美元)将重现,但不太可能发生在2014年。他说,“油价将会上涨。”
同时,调查数据还显示,榜单上前100名的学校,毕业生平均月薪较去年上涨了1818元,涨幅达到22.8%。
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