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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

中国楼市冷热互现 专家认为房价难再飙涨

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 当“离家出走”成常态 LED企业发展还靠谁? the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Financial success and dazzling new technology alone might have been enough to earn Apple’s steely chief executive the FT’s vote as the 2014 Person of the Year, but Mr Cook’s brave exposition of his values also sets him apart.
Thirty-six Chinese brands have made it onto the list this year. Among them, eight are in the top 100, including the State Grid Corporation of China (36), the Industrial and Commercial Bank of China (ICBC) (40), Tencent (43), China Central Television (CCTV) (62), Haier (76), China Mobile (79), Huawei (81) and Lenovo (90).

Nineteen buildings disappeared in the space of 10 seconds after being demolished by a controlled explosion in China yesterday.

10.American Hustle
The People’s Bank of China has long intervened in foreign-exchange markets to hedge against excessive volatility. Since August, however, such intervention has expanded from the domestic spot market, which covers daily transactions, to include the offshore renminbi market in Hong Kong, as well as both onshore and offshore futures markets, traders say.
我打赌短期内这些力量——以及美国的首席执行官们——将继续缓和总统在贸易上的火气。不过眼下华盛顿有很多人叫嚣着要在贸易上惩罚中国。
很多宏伟壮观的博物馆坐落在布鲁日、安特卫普和布鲁塞尔等风景如画的城市中。艺术爱好者可尽情徜徉在中世纪时期的大量艺术瑰宝中。同时,你也不要错过造访宁静小镇、参观哥特式建筑的机会。比利时拥有世界上最好的啤酒、巧克力以及薯条,因此,在那里人人都是美食家。随着第一次世界大战爆发100周年纪念日的临近,未来几年,比利时将成为更多游客的首选。
《圣鹿之死》
从周日起,各地的观众都在叹息该剧剧终,至少从Twitter名人的帖子来看是这样的。
The government needs to work to emancipate and develop productive forces, bring out the initiative for the people and deliver greater benefits to the general public, the essence of governance is to always act in the overall interests of the whole country rather than just acting in one scenario departmental interests. The essence of our government is to always respond to the people’s call.
British statisticians’ unwillingness to correct known errors in the clothing price component of the RPI redistributes many billions every year from students, recent graduates, taxpayers and rail commuters to index-linked UK government bondholders, wealthy pensioners with RPI-linked pensions and rail companies.

"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

Make sure you've got a good plan for seeing that your children are cared for when you're scheduled to be in class, and when you need to study. It really is possible to raise children while you're going to school. People do it every day.
The Big Sick

Thirty Seconds of Mars, who are fronted by American actor Jared Leto, took home the Best Alternative award, which also saw Lana Del Rey, Lorde, The XX and Imagine.
[bent]
领导层
2017年,全球黄金的产量从上一年的3263吨上升至3268.7吨。这是自2008年以来的最小涨幅。2008年金融危机期间,黄金开采量下降了逾2%。

Winners: Thunder
到现在为止,要想准确可靠地检测到铅的存在,这都是非常昂贵的,同时这也意味着要发送样品,以用于分析。
4.比赛期间不要讲话叽歪,等到中场休息或是比赛结束时再说话。
con全部+fid相信+ent表示形容词,“…的”→自信的
今年到目前为止,周星驰的《美人鱼》自二月上旬的贺岁档上映以来,已经取得了5.26亿美元的票房收入。

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

近几十年来,很少有年份像2014年那样一开始就充满那么多的悲观情绪。对2014年的预测贯穿了一个主题,即这一年看起来与1914年相似得让人害怕。大多数学者的预测都是悲观和令人沮丧的,尤其是对于东亚。然而,虽然发生了许多可怕的事件——从马航MH17航班在乌克兰坠落,到尼日利亚数百女学生被绑架,以及“伊拉克和黎凡特伊斯兰国”(Isis)的崛起——但我们避免了全面的世界大战。现在,2014年已结束,没有重现1914年的悲剧。探究为什么这些学者预测错了(特别是他们认为亚洲存在冲突可能性的想法)或许是明智的。
此外,该报告还指出,雨果博斯、雪佛兰和舒洁则跌出了该榜单。

CDC

Promoting employment should be prioritized, said Premier Li Keqiang at a meeting organized by the Ministry of Human Resources and Social Security on last Friday.
相对而言,这一增幅超过城市居民同期平均薪资涨幅(17.4%)。

document
007系列电影主题曲第二名:蒂娜·特纳--《黄金眼》
报告还写道“这一增长进一步依靠视频编辑技术,在第三季度显著增长了19%,因为视频内容已经成为了大多数顾客为中心的网站的首要的吸引和号召行为。通过社交媒体的大量的视频营销也助涨了这一需求。”
我们总会不断地去思考着NBA一个赛季接着一个赛季的时间流逝,原因也很明显。在流逝的过程中,每一项事物都是有联系的,整个过程就是一个连续体。这就是我们记住在一个赛季当中所发生事情的方式。当我们翻看日历,从1月1日到12月31日,回顾一下我们在这个过程中学到了什么,对我们来说是很有好处的。而且,很多人说NBA赛季的“非正式开端”是圣诞节,也正是因为新年很快就要开始了。下面是我们在2017年里所学到的关于nba的经验教训。

时间:2010-03-31 编辑:vicki
How you think about your workbeing very popular in the west?
“研究数据时,我不断回到这个问题上来,它其实是个身份政治问题,”挪威卑尔根大学(University of Bergen)研究欧洲极右翼党派的教授伊丽莎白?伊法斯夫拉腾(Elisabeth Ivarsflaten)说。“这是民粹主义者获得支持的最有力的征兆。”
尽管可以下载的课程具有较好前景,但在现实世界,得到官方承认的学历仍然基于课堂教学活动。初创公司采取了这样一种态度:如果他们无法以新的服务交付方式在高校的地盘上击败它们,那就应该与之建立合作伙伴关系。其结果是,他们忙着争取考试委员会核准他们的在线课程,使其可以算作学士或硕士学位资格的一部分。

This list is composed of—The strongest, intelligent, desirable, popular, attractive, beautiful, successful women in 2015.
China's economy grew last month, according to a closely-monitored PMI series - which indicated growth for the first time in four months.
The auction house said today that the auction, featuring two diamonds over 100 carats, drew buyers from more than 30 countries.
The jobs were ranked based on the following attributes, with much of the data coming from the Bureau of Labor Statistics: “income, outlook, environmental factors, stress and physical demands.”
Fewer women than men have worked abroad for at least six months (42 per cent and 52 per cent respectively) but they share exactly the same motivations — to develop management skills, build their network and increase their earnings.

n. 果心,核心,要点
In P2P lending, borrowers are matched with investors, who are encouraged to put their money into the loans due to higher returns than they could get at state banks.
receptive
批评人士一直急于指出,库克对新产品开发的参与度不如他前任那样高,而且当他走上舞台介绍新品时,也无法引起同样的兴奋。但库克知道自己的短处,他从健身和时尚界招揽人才,组建了一支新团队,其中包括前博柏利(Burberry)首席执行官安杰拉?阿伦茨(Angela Ahrendts),以及工业设计师马克?纽森(Marc Newson)。
单词embrace 联想记忆:

?奥巴马总统在纽约和新泽西宣布一场“大灾难”。洪水摧毁了海岸和超过230万人失去了电。在新泽西国家警卫队从洪水中救出数百人。州长克里斯?克里斯蒂,共和党人,说这次损失是“无法想象的”。他赞扬了从奥巴马那收到的“突出”配合。
potential
相比之下,小型货车销量却开始走下坡路,其成交量仅为7.13万台,同比跌幅31%。
对于购房者,也不都是坏消息:房价明年(2015年——译注)仍将上涨,但步伐可能会从飙涨趋于平缓。“房价不会一味地陡然上涨,”柯克兰集团(Corcoran)的首席执行官帕梅拉·利伯曼(Pamela Liebman)说,“买家都有点疲劳了。”

SplashData公司称,在娱乐网站上使用和邮箱及社交网站相同的密码尤其不安全。
The companies that have tried — and so far failed — to create a sustained ETF boom in Asia say the need for wholesale reform suggests the market will be defined by a protracted effort to convince both the regulators and customers to redraw the scenery.
全球最佳大学排行榜是根据科睿唯安公司提供的数据和标准得出的。
grant
"Poverty has stunted further growth in Internet users, which has kept the Net user population to around 50 percent," Li said.
The understandings are that winners never take all.

约瑟夫?斯蒂格利茨(Joseph Stiglitz)等诺贝尔经济学奖得主、比尔?麦吉本(Bill McKibben)等环保活动人士、乔治?索罗斯(George Soros)及新经济思维研究所(Institute for New Economic Thinking)、阿尔?戈尔(Al Gore)和其他现代思想家全都提醒我们,传统经济学家(以及他们效力的银行、企业和政府机构)都已对坏的经济学理论成瘾,他们在破坏美国的未来。
冲击奖项:很难相信斯特里普得不到最佳女主角提名,而汉克斯在销声匿迹几年后,早该获得一项表演类提名了。
Hurun Chairman Rupert Hoogewerf said: "Those entrepreneurs should be called 'super wealth creators' instead of simply 'rich people', which could highlight their contribution to China's society and economy."

单词immunity 联想记忆:
除了要符合质量标准之外,进口商品还必须按中国规定正确标注。
这种旅行枕可以随意弯曲变形,您的头怎么放都行。
在大选结果公布后,罗姆尼竞选阵营暂时没有发表言论。
哈佛大学连续16年位居榜首,斯坦福大学和剑桥大学仍分别位列第二、第三名。