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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

全国首例!武汉一家房产中介被定性为“黑社会”!

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 家具市场惨淡的罪魁祸首:卖场严重过剩 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

这些专家都不是轻量级的。杰出的历史学家玛格丽特?麦克米伦(Margaret MacMillan)在2013年12月的一篇为布鲁金斯学会(Brookings)撰写的文章中说:“像1914年的世界一样,我们正在经历国际权力结构的转换,新兴大国正在挑战老牌大国。”她补充说,“如今,同样的一幕正发生在美国与中国,以及中国与日本之间”,同时她还表示,“中国与它另外两个邻国——越南和马来西亚——也有爆发冲突的可能性。”
许多人和伙伴一起学习效果会更好。如果你也是这样的话,可以在班上组建一个学习小组,或者加入一个已有的小组。

上海交易所和深圳交易所总共完成了61宗IPO交易,较2015年同期分别下滑了67%。融资总额288亿元人民币,较2015年同期分别下滑了80%。

这里并不是要给特斯拉浇一瓢冷水。它已经证明自己具有生产一款复杂、先进且外观诱人的产品的能力。但无论是特斯拉自己的内部预测,还是投资人对其股票的追捧,都基于同样一个预期,那就是特斯拉未来依然会延续最近的大热势头。这是一种危险的假设,原因如下:
Paris (AFP) - Some 1,400 people living in France have either joined the jihadist cause in Syria and Iraq or are planning to do so, Prime Minister Manuel Valls said Monday.
最佳男歌手:杰森·阿尔丁
床垫内的传感器可以检测压力和发送邮件给你的应用程序,它不会放过任何一个细节。它不仅检测床上运动,还可记录强度和速度。
当然,这些新势力也可能引发反弹,使得指挥-控制的老派领导方式卷土重来。令人郁闷的是,主宰世界舞台的政治人物大多是老派的,而他们面临的领导力挑战——从英国退欧到朝鲜问题——尤为复杂。
If 2017 was the year of fake news, 2018 is shaping up to be one of fake data. And just as fake news comes in many varieties — real news dubbed by the US president as fake, as well as nonsense gaining huge audiences on social media — so does fake data.
10. 把单词画出来!
That feeling of success may have provided a sort of identity in itself.

"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

单词pandemic 联想记忆:
德拉吉在12月投票表决的次日作出回击,称欧元区政策制定者在动用政策工具推动通胀达标方面“是没有限度的”。

Will a stable and liquid bitcoin futures market develop
自从在2009年从榜单的第一位落到第五位之后,小甜甜布兰妮的排名继续下滑,随着嘎嘎小姐和贾斯汀 比伯这些新星的走红,布兰妮在2010年仅名列第十位。
char茶,ity状态-请喝茶的状态-施舍-仁慈
Then there were these cautionary tales, where a candidate

单词summary 联想记忆:
In comparison, second-tier cities reported worsening congestion, an increase of 3.7% on average, with Chongqing, Changchun, Jiaxing and Shenyang leading the rate of growth at over 7%.
Skeptics of climate change have long argued that global warming stopped around 1998, when an unusually powerful El Ni?o produced the hottest year of the 20th century. Some politicians in Washington have seized on that claim to justify inaction on emissions.
煽动家是民主的软肋。
The Shape of Water

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

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。
Mr Draghi hit back the day after the December vote, saying that there was no “limit” to what eurozone policymakers could do to return inflation to its target.

CDC

“我都不知道要怎么解释拿了年度风云人物奖之后,还是没有女性杂志和组织支持我的事。”
The parallels between Snapchat, the upstart "sexting" service, and social media behemoth Facebook (FB) in its early days are uncanny. We all know how well Zuckerberg's long bet paid off (not to mention how thoroughly he vanquished those dastardly Winklevoss twins). Could Snapchat's future be just as bright?

“As the economy enters the ‘new normal’, the industry sector faces increased downward pressures, unreasonable structures and weak innovation capability,” Mao Weiming, vice-minister at the Ministry of Industry and Information Technology, said at a press conference.
Lady Gaga凭她的非营利性的天生如此的慈善基金会名列第四名。
7. Make sure you don’t ask silly questions such as; is this Chelsea versus England?
There are few chief executive decisions that drew more attention this year than Yahoo(YHOO, Fortune 500) CEO Marissa Mayer's work-from-home ban. The policy was initially seen as highly controversial and had a lot of people upset because of its perceived lack of flexibility.

adj. 青春期的,青少年的
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节目35 歌曲《美丽中国》,沙宝亮 徐千雅
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”。

Yes. With the US Federal Reserve likely to raise interest rates a few times in 2018, trading is likely to be choppy in emerging markets. Sometimes it may feel a bit like a rerun of the 2013 “taper tantrum”. However, average GDP growth will rise to 5 per cent, up from a forecast 4.7 per cent this year. This will mostly be because Russia and Brazil, which have stumbled, will bounce back.
James Bond is one of the few constants that movie lovers have in this crazy world of ours. We seem to know that, no matter what, a new Bond movie is always on the way.
Fans of Twilight will finally get to see how the wedding, honeymoon, and birth scenes play out with the release of Breaking Dawn Part 1. But before you catch R
同时,城市周围的乡村地区将会进行修缮,低端的制造厂和公司将会迁移。
avoid

《海底总动员2》将于2016年6月17日上映。
大学的工作人员表示这封信已经伴随学校的意见T恤一起送往Siddeeq先生了。
Successful CEOs tend to follow a structured, daily schedule of rising early, exercising, having snacks on hand for fuel and socializing many evenings of the week.
Martin Wolf
在不久的将来,罗根(休?杰克曼饰)已迈入暮年。他在墨西哥边境附近的一个藏身所里照顾着重病的X教授(帕特里克?斯图尔特饰)。他计划隐世度日,但他遇见了一个非常像他的年轻变异人劳拉(达芙妮?基恩饰)后,这个计划搁置了。罗根必须保护这个女孩,与要捕杀她的黑暗势力斗争。

中国旅游研究院的蒋依依建议,中国政府应实行一项长期的国家计划,以提升国家形象并投资于入境旅游以吸引更多游客前来。
The Incredible Jessica James
6.你昨天穿得比平时好看10倍。
During a town hall hosted by MSNBC on last Monday night, host Rachel Maddow asked Clinton whether she would match a campaign promise Canadian Prime Minister Justin Trudeau made good on earlier this year.

10月中国进口同比下降18.8%,降幅较9月的20.4%略有改善。石油和其他大宗商品价格大幅走低也帮助压低了进口总值。
乌龙事件澄清之后,《爱乐之城》制片人乔丹?霍罗威茨重新拿回麦克风说 “《月光男孩》获得了最佳影片奖”,而且强调“这不是玩笑”。
全食CEO约翰麦基的《自觉资本主义》(Conscious Capitalism)一书让公司高管们不得不思考这样一个观点,那就是处于最佳运转状态的企业能为所有利益相关方创造价值,而不仅仅是投资者。麦基认为,主要利益相关方包括顾客、员工、供应商、社会以及环境。他以好市多、西南航空(Southwest Airlines ,《财富》500强)和谷歌(Google,《财富》500强)为例,说明思维超越利润能够打造更强大而、更高效的公司。
The details of her character are being kept under wraps.
If it isn't appropriate to interrupt, make a quick note of your question so you don't forget, and ask later.
中国民航局局长冯正霖表示,因天气造成航班延误的比例由2015年的29.5%增至2016年的56.8%。

['heivn]
伦敦——在20世纪70年代,英国喜剧演员汤米·库珀(Tommy Cooper)讲过这样一个笑话:他在阁楼里发现一把小提琴和一幅画,让拍卖公司估价。拍卖公司说,好消息是它们分别出自斯特拉迪瓦里(Stradivarius)和伦勃朗(Rembrandt)之手。坏消息是那幅画是斯特拉迪瓦里画的,小提琴是伦勃朗做的。
清华大学(Tsinghua)与欧洲工商管理学院(Insead University)合办的Tiemba项目排名上升两位,在2015年全球EMBA排行榜中摘得桂冠,而Trium项目的排名回落至第三,仅在头名位置维持一年时间。

In eighth place with $6.5 million, Chinese model Liu Wen, 29, is the only Asian model on the list, reflecting the lack of diversity that continues to plague runways.
[di'rekt?, dai'rekt?]
It was last above 50 - the threshold separating contraction from expansion - in February.
On Sunday, the night before the Doodle debuted, Zhang told Newsday she was "excited" by the big win, but said she wouldn't be awake when her art first went online at midnight.
According to Putin's most recent income declaration, he earned roughly 8.9 million rubles ($137,000) in 2015.