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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

居住证:以法治助推新型城镇化 | 日签

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 高管离职泛滥!佛山照明副总经理解庆辞职 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

自工业革命以来,全球气温已经上升了0.8摄氏度。虽然去年1摄氏度的升温不太可能在今后每年都出现,但科学家表示由于厄尔尼诺事件的持续,2016年可能又将是一个极端炎热的年份。
For the government, the job is to create a good environment and the necessary conditions for our people to use their own wisdom and hard work to generate golden opportunities for themselves, rather than just relying on the government to hand them a job.

complain

Will oil finish 2018 above $70 a barrel
法国兴业银行(Societe Generale)国际策略师基特?朱克斯(Kit Juckes)说,过去30年破灭的三个世界级金融大泡沫背后,都是“美联储(Fed)太久时间将政策利率维持在名义经济增长率之下”。
Two days ago here in Brazil, we were shocked when we spent some time with some children living on the streets. And this is what one child told us: "I wish I was rich and if I were, I would give all the street children food, clothes, medicine, shelter and love and affection." 在巴西,我被2天前见到的情景震惊了,那时我和当地的小孩在玩耍,其中一个小孩说:“我希望我能富裕起来,然后我会给这个街道所有的小孩饭吃,给他们衣服穿,医疗,住房和爱”。
The real Irving is named Mel Weinberg, and he and his mistress were in fact enlisted by the FBI to oust eight elected officials for taking bribes. Just like the film, Weinberg and the FBI developed an elaborate con to catch the corrupt politicians in the act. Weinberg did end up forming a friendship with one of the officials, although unlike in the film, his final immunity deal didn't protect the friend he helped implicate. Some things are just too far-fetched, even for a career criminal.
When you need help, reach out to people in your networks – that’s what they’re there for. Whether you need a confidence-boosting pep talk or advice about building your technical experience — your mentor, your colleagues, and your manager can help. You may not know how to do something today, but chances are you’re smart enough to find someone who can help you learn it. And once you do, don’t unfasten your seatbelt – there’s always going to be another challenge headed your way.
Taken alongside data released in the past few days, and it doesn't make things easier. The country is still struggling with deflation and household spending slumped last month. But retail sales data released this morning topped estimates.
Businesses are already responding: Job openings in November hit the second highest level in 14 years. In another telltale sign, people are quitting jobs at the fastest rate in five years. Research shows that people who quit one job for another typically do so because they are offered higher pay.
荷兰合作银行表示,预计大豆价格将保持强劲,目前在1蒲式耳10美元上方,同时由于需求稳定上升,预计奶制品价格明年也将上涨。

"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

The UK’s Warwick Business School recorded the best progression at the top, moving up from 16th to ninth place, while the Shanghai Advanced Institute of Finance (Saif), based at JiaoTong University, enjoys the bestprogression overall, jumping from 28th to 14th place.
As the new iPhone continues to smash its own launch records, Mr Cook has unveiled products such as Apple Watch and Apple Pay that take the iPhone maker into the realms of fashion and finance, recapturing a spirit of innovation that many feared had died with Jobs. In the process, Apple’s valuation this year has grown by almost as much as Google’s entire market capitalisation.

n. 谣言,传闻
n. 暴行,侮辱,愤怒
Romney made last-minute visits to Ohio and Pennsylvania on Tuesday to try to drive up turnout in those states, while Vice President Joe Biden was dispatched to Ohio. Obama remained in his hometown of Chicago.
在过去的20年里,日本有些城市的生活成本达到过世界最高,但现在正在降低。东京和大阪分别降低了11名和14名。

Take solid and effective steps to cut overcapacity
当你在工作的时候,你的效率应该是很高的。不然的话,那就是在浪费你自己的时间和公司的财富。如果你很厌倦,一天当中大多数时间是在浏览网页,你可能是想要寻找其他的能够激励你的工作机会了。
2002年,电视剧《绝望主妇》的制片人马克·切利正在家和他母亲看着电视。那天(以及前几天)的头条新闻是安德烈·耶茨案件审判。她因在浴缸里溺死自己的5个孩子而受审。马克转身问他母亲:"你能想象一个女人究竟是多么绝望才会杀了亲生孩子?"
2. 美国页岩油。截至2014年底,美国页岩油日产量已经超过900万桶,比2007年增加了80%。这些页岩油是造成石油供给过剩的主要力量,而供过于求是2014年油价暴跌的诱因之一。总的来说,美国页岩油开采公司都搬起石头砸了自己的脚,但关键在于,西德州轻质低硫原油(WTI)价格跌破60美元对它们有何影响?页岩油钻机数量不断减少,相关开支也遭到削减,然而到目前为止,美国页岩油产量依然稳定。按照当前油价,这个行业能否维持产出水平,或者说美国页岩油产量会不会减少将对国际市场供应乃至油价产生重大影响。
当你和他/她在一起的时候,你看不见周围的所有人,你的眼中只有他/她

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

On issue after issue, from Iranian sanctions to withdrawal from Afghanistan, there was little difference between his position and that of the administration, but Romney insisted he would have projected American strength more effectively.
“这是关于‘我们是谁’的基本问题,”伦敦大学伯克贝克学院的政治学教授埃里克?考夫曼(Eric Kaufmann)说,“作为这个国家的一员意味着什么?它是否已经不再是‘我们’的国家?——‘我们’是指占多数的民族。

CDC

现在压力都在诺埃尔这里了,他得证明自己远比在76人时期迷失在混乱中的时候强。
We will continue to work to see that government functions are fully carried out in accordance with law.

2010 10-year Treasury yield (year-end): 5.0%
['minits]
不过,我不在叹息之列。
vt. 起草,征

对于像费城、凤凰城和布鲁克林这样的烂队而言,另一个问题在于他们很难笼络到好的球队拼图。
An odd assortment of S&P sectors led the market higher this year, with some strange bedfellows atop the leaderboard. Even if a manager had foreseen that the healthcare sector would gain 27% this year, would they have guessed that utilities would be in the No. 2 slot, with gains of 23%? Unlikely.
China is trying to attract more students with an international background because of the country's involvement in global cooperation, said Miao Lü, secretary general of the Center for China and Globalization.
普兰特?莫兰:甜食福利惹人馋

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.
The 16-year-old surnamed Zhou on April 24 poured pesticide into the water dispenser in the classroom, apparently in an act of revenge against classmates who disturbed the class and affected Zhou's studies, the Chongqing Morning Post said.
8. Taxi driver
Self-driving cars, selfie sticks, drones, touchscreen devices, e-cigarettes, jetpacks, and many other things seem like fairly modern inventions. Indeed, most of their "inventors" list them as newly invented and even go as far as seeking patents. But the fact is, many of these "inventions" have already been in existence for quite some time. They may have earlier lookalikes that ended up not going into production or that went into limited production due to one reason or another. Some also made it into full production but were recalled due to poor sales.
她声名在外,母亲不得不为她雇了专人保镖团队,全天24小时保护她的安全。

他还贴出了一张自己看着一群种族多元化儿童的图片。
中国中央和地方政府会对技术升级方面投入更多的经费。 包括现代化农业、运输、医疗等方面。这些积极的投资将会进一步提高中国生产和制造业的竞争能力。这将是一次国家行为,目的是为了推动提高产品质量和产品合格率以及以提升产品主导的全球竞争力。
201110/156061.shtml
Together, the world's 10 highest-paid models banked a cumulative $109.5 million between June 1, 2016, and June 1, 2017, before taxes and fees.
Cross talk (Guo Degang and Yu Qian)

这是连续第二个周末,委内瑞拉的社会主义政府开放与哥伦比亚长期封闭的边界,星期日上午6点,潜在的顾客们排成长蛇阵,穿过圣安东尼奥德尔塔奇拉整个小镇。有些人租了车,从10小时车程外的城市赶来。
“If they, say, delay a customary process for Korean imports and take other retaliatory measures on Korean products, there is nothing Korea can do about it,” he said.
"This film was about survival, adaptation and the triumph of the human spirit and more importantly it was about trust.”
China's consumer price inflation decelerated to just 1.3 per cent year-on-year last month, the slowest rate since May. On a month-to-month basis inflation fell by 0.3 per cent, the first negative reading since May.

汉森表示,美国原油增产意味着现货油价对地缘政治事件的反应不如以往那样大了。他说,目前的原油供应足够多,油价受威胁的程度不如以往,2014年将是首个出现一段时间原油供应增量超过需求增量的年头。
Two terrifically entertaining, ensemble-driven, fact-based procedurals about appalling crimes and the institutions — the Roman Catholic Church and Wall Street banks — that allowed corruption to fester. In addition to mustering righteous anger, Mr. McCarthy and Mr. McKay, in very different ways, managed to infuse the routines of modern work (answering phones, typing on keyboards, scrutinizing spreadsheets) with suspense, emotion and moral gravity.
此外,去年共计新增银幕8035块,相当于每一天,都有22块银幕投入使用。现在全国共有大约31627块银幕。
尽管购汇限制并未调整,但监管部门现在要求个人详细披露到底要用购得的外汇去做什么。购得的外汇只能用于旅游和购物、留学、境外求医以及咨询服务等经常项目支出。房地产和其他投资性支出属明确禁止之列。
v. 排
'Nebraska' gets to the heart of Bruce Dern's prickly old geezer, Woody Grant, by way of a road trip across Montana and Nebraska, shot in radiant black-and-white. (Here again one of the movie's stars is its cinematographer, Phedon Papamichael.) Alexander Payne directed, flawlessly, from Bob Nelson's stellar script, which is all about thwarted love, and reconciliation, between Woody and his son Will; he's played with painfully quiet eloquence by Will Forte. Here's the American heartland as it's seldom portrayed on screen, with humor and almost palpable fondness.

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.
另一位对时尚颇有野心的人就是温妮·哈洛,她在这场举世闻名的节庆活动的第一天即崭露头角。这位患有白斑病的加拿大模特几乎抢了艾米莉的风头,她用自己优雅的舞会礼服吸引了众人的关注。
The 12 US schools that appear in this ranking are the most gender balanced on average, with cohorts that are 48 per cent female.

Yu Xiuhua, born with cerebral palsy, lived a quiet village life. She is now a literary sensation whose vivid, erotic poems are “stained with blood.”
被称为红热病的传染病在20世纪盛行,击溃了当时西方国家的幼儿们和体弱者。
Every employee wants a pat on the back once in a while, and the best bosses understand the importance of recognizing and appreciating employee contributions. This doesn’t have to mean bonuses or fancy corporate awards, but regular and meaningful expressions of appreciation。
The Caixin-Markit manufacturing purchasing managers’ index dipped to 50.8 in November, down from 51 in October and coming closer to the 50-point threshold that delineates expansion from contraction. A median forecast from economists polled by Reuters had predicted a fall to 50.9.
《财富》美国500强公司美国电话电报公司(AT&T))也于3月份批准了回购至多3亿股股票的计划,价值约105亿美元。这项回购计划是它过去三年中宣布的第四项回购计划。这家公司自从2012年开始股票回购至今,总计已经回购了7.75亿股的股票。