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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

合肥澄清衡阳撤文 地方楼市政策延续“房住不炒”

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 国家统计局:2017年国内生产总值827122亿元 比上年增长6.9% the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

把职工安置好还是我们推进供给侧结构性改革,推动化解和淘汰过剩产能中最关键的问题。
NPLs rose from 1.25 per cent of total loans to 1.67 per cent by the end of 2015, amounting to Rmb1.27tn held by commercial banks.

感谢和凯尔特人的选秀权交换,他们没有理由摆烂。他们或许会从参选球员中选到一个最佳安慰奖以推动球队前行。

This year, pop's best albums came from strong women who had a lot to say: Lorde's searing look at loneliness, Kesha's raucous statement of liberation, Taylor Swift's reckoning between her self and the version presented in the press.
1. glitterati / n . 知名人 士,国际上层社会人士。
有些纽约人就像讨厌房东一样讨厌邻居。合作公寓和共管公寓的管委会要小心了:你们也好不到哪去。
The EU is making clear it wants to use the void in US leadership on trade to nail down new trade agreements. The negotiations with the Mercosur trade bloc in Latin America have been going on in fits and starts for more than a decade. But the EU and key Mercosur members like Argentina are now pushing to conclude a deal by the end of this year. That would be a big statement planted right in the US’s backyard.
n. 蝴蝶,蝶状物,蝶泳
17. Most Complex Hurdle As of Dec. 7, seven out of 20 domestic top-grossing movies released this year had female-driven stories, according to the website Box Office Mojo. By contrast, five out of 20 female-driven stories topped the international market, which accounts for some 70 percent of the industry’s revenue. This may look bad, but the numbers appear marginally better than they have in recent years.
Jumping all in is rarely ever successful. There are success stories about people who invested everything once and came out winners after six months or a couple years, but those are rare. Risk management is an essential factor in any startup, and balance is vital. You can absorb losses more easily if you take smaller risks in the beginning. Those will provide essential and productive lessons.
n. 插曲,一段情节,片段,轶事

"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

Widely misunderstood as a biopic about the novelist David Foster Wallace, Mr. Ponsoldt’s film is a comedy of journalistic bad manners and a bitter, knowing satire of the machinery of literary fame. Jesse Eisenberg and Jason Segel use the conventions of the buddy movie to perfect a new subgenre: the frenemy film.
拿比利时来说,理由更为显而易见。该国人口主要由弗拉芒人、瓦隆人和日耳曼人组成,但国家足球队中却有数名非洲裔球星。目前,摩洛哥裔比利时人,包括中场费莱尼和边锋查德利——组成了最大的非欧洲小团体。就像法国队内有北非和加勒比小分队、德国队中有土耳其裔球员一样,比利时国家队也从多元人口结构中受益:一个来自西欧,一个来自非洲,还有一个来自东欧。

杨燕绥主任说道:“养老保险实际抚养比到了3:1的时候,养老保险的费率就不能低于17%,如果降到2:1,每个人就得承担25%,抚养比越低,个人承担就越来越重。两年内必须解决养老金制度的转型。”
Wishing you all the happiness of the holiday season.祝节日幸福如意。
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.
Consider:

在你面试应聘者的时候,有些人得分较高,你认为应该他能得到这份工作,但是招聘主管却改掉分数,招那些他喜欢的人。
德文·韦德
今年2月的时候,玛蒂与希雅和克里斯汀?韦格(Kristen Wiig)一起担任2015格莱美音乐颁奖典礼(Grammy Awards)的表演嘉宾。当时金?卡戴珊(Kim Kardashian)和坎耶?韦斯特(Kanye West)坐在前排观看了这个表演。
This year's new college grads entering the workforce are being offered an average monthly salary of 4,014 yuan ($582), and about one-third of them chose to work in first-tier cities, according to survey results released by zhaopin.com, a Chinese online recruitment service provider.
如果你喜欢暖心且内容犀利的喜剧片,没有比《大病》更合适的了。这部影片讲述了一个喜剧演员爱上了一名抗议者的故事。他们的背景截然不同,这样的故事能让跨种族相爱的人产生共鸣。

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

n. 感动(激动,愤怒或震动), 搅拌,骚乱
此外,他指出,鉴于中国正在努力推动本国经济从出口转向消费的再平衡(从而减少对中间投入品的进口需求),再加上“中国政府鼓励使用国内供应商的政策”和其他地区保护主义的兴起,“全球贸易在短期内不太可能回暖”。

CDC

In early December, authorities announced that market circuit breakers would be introduced become effective from January 1 in an effort to limit the volatility seen during the savage, summer sell-off from June. The circuit breakers would see trading in shares, options and futures halted for 15 minutes if they fell by more than 5 per cent. On their first day of use, that first threshold was breached just after the return from the lunchbreak, prompting a 15-minute halt.
At the same time, Apple is bringing in costly new components. These include an OLED display that makes the front of the phone into one continuous screen. Depth-sensing cameras will offer new “augmented reality” features and allow the device to be unlocked by face recognition, instead of fingerprint.

1997:H5N1传染人类1997: H5N1 Infects Humans
Norway, which has twice rejected European Union membership, ranks No. 10 overall. The country takes the No. 1 spot in Citizenship and the No. 2 spot in Most Transparent.
She said: 'Bobbi's like a little Beyonce, a little madam really.'
Goldie Hawn’s award for best supporting actress in the 1970 film Cactus Flower rests somewhere altogether more zen – in the “India Room” in which she likes to meditate. Hers isn’t the only award to apparently emit good vibes – Russell Crowe’s award for best actor, which he won for his role as the bang-on-trend, leather miniskirt clad Maximus Decimus Meridius in Ridley Scott’s 2000 film Gladiator, is kept in a chicken coop on the actor’s Australian ranch. Crowe apparently thinks it helps the hens lay bigger eggs.

10.Meditate
The pace of Japanese production rose at a brisk clip during the month of October, giving policymakers hope - if not more mixed messages - about the strength of the Japanese economy.
Supply-side structural reform: Cutting overcapacity, destocking, deleveraging, reducing costs and identifying growth areas
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哈佛大学著名教授格雷厄姆?阿利森(Graham Allison)也警告说,东亚已走向“修昔底德陷阱”(Thucydides’s trap),他并补充道:“当一个迅速崛起的大国与一个老牌霸权国竞争时,麻烦接踵而来。”2013年初,时任卢森堡首相的让-克洛德?容克(Jean-Claude Juncker)警告称,2013年看起来像1913年一样危险。2013年底,《经济学人》杂志(The Economist)也警告说,“一个世纪已过去,当今世界却与那个导致第一次世界大战爆发的时代有不少相似之处,令人不安。”
不论是在那首一目了然的《IDGAF》(《我才不在乎呢》)中对情人的不屑一顾,还是在那首狂热的《Lost in Your Light》(《迷失在你的光芒中》)与米格尔热烈的音乐相和,她以些许艾蕾莎·贝丝·摩儿那种深沉的态度和些许希雅那种令人受不了的夸张,强烈地表达着自己的情感,但她也是一位比这两人都要热情的歌手。
中国教育部体卫艺司司长、中国足球协会副主席王登峰表示,足球专家们正在为小学和初中设计超过360种训练项目。
5月14日,英国佳士得拍卖行拍出世界上最大的无暇艳彩蓝钻。
张国立将主持2014年春晚

办好公平优质教育。
英国《金融时报》EMBA项目排行榜在对商学院和2011年毕业生进行调查的基础上编制,可以让人们大致了解学员在读EMBA前后的变化。
一个更大的侧影
这就真相了,我同意。
n. 初次登场,首次露面 v. 初次登场

Total program cost: $168,000
Yes, some molds cause allergic reactions and respiratory problems. And a few molds, in the right conditions, produce "mycotoxins," poisonous substances that can make you sick.
6.头戴式电脑出现
分析师和评论员们对石油市场的解读着重于供应端,以及沙特或其他地方的产量和出口量。供给很重要,但成本更重要。

Industrial production rose 6.1 per cent year on year in October, according to China’s National Bureau of Statistics, unchanged from September’s level and just below a median forecast from economists of 6.2 per cent.
自这份年度榜单编制之初,“password”就占据了“最常用密码”的榜首位置。而在2013年榜单中,“password” 排名下滑到了第二位。
在推特今年转推量最高的10大推文榜中,有3条美国前总统贝拉克·奥巴马的推文,而该国现任总统唐纳德·特朗普的推文却无一上榜。
The biggest falls in brand values include oil and gas companies, still suffering from low commodity prices, and banks, which face growing competition from rival payment systems such as PayPal — whose brand value increased by 35 per cent (see story page 2).
stre力量,ngthen-加强力量
Matt Damon was named best actor in a comedy or musical motion picture for his role as a stranded astronaut in The Martian.

Hunger Games star Jennifer Lawrence on Tuesday topped a Forbes magazine list of the world’s highest-paid actress for the second straight year, earning some $46 million, followed by Melissa McCarthy.
The study was based on 3,095 questionnaires from 2016 graduates and 1,661 questionnaires from employers across the country.
1896年,美国首任总统的夫人玛莎·华盛顿的画像印在一美元银圆券上,此后美元纸币上再没有出现过女性画像。

3、Negativity
cerebr脑
I once had an advisor that said to me when I expressed fear of a difficult class, "Do you want to get an education or not?"
2. 宾夕法尼亚大学沃顿商学院
rough