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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

建筑建材行业:近三成上市公司年度业绩预喜

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 10个数据见证中国涂料百年沧桑 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Most of the cellphones sold in 2016 are smart phones installed with the Android system and 4G ready, according to the report.
最后,不管你是什么性格的人,积极生活,健康向上!

When reflecting on the year in film, moviegoers often remember strong performances, or they might consider how a movie worked as a narrative, the emotions it evoked, what chances it took.

这位工作人员说道:“她注册时说自己姓韩,也不是像媒体上报道的姓苏。”
Unless Charles Oakley successfully sues owner James Dolan, the highlight of the Knicks' 2016–17 season will be Kristaps Porzingis winning the Skills Challenge at All-Star Weekend.
记者们注意,求职网站CareerCast.com传来了一个坏消息:你们的工作当选“2015年美国最差职业”。另两种传媒业工作也在这份榜单上高居前列,和一些重体力工作排在一起。
Mr Cook must balance that with the secrecy that surrounds its product development. Already, there are whispers on Apple’s campus about another secret project, on the scale of the iPhone or Watch, which is pulling in talent from across Cupertino.
许多经济学家认为,欧洲央行(ECB)不会在2016年加大其1.46万亿欧元资产购买计划的规模,尽管该行行长马里奥德拉吉(Mario Draghi)保证额外的货币政策刺激仍是选项。
新近成立的Eleven James正在男表领域引入合作消费的概念。该公司的会员项目能令你获得亲近一系列精挑细选的高端腕表的机会,这一曾经只和私人飞机、豪华汽车及度假屋联系在一起的会员模式正在Eleven James的手中发扬光大。除腕表外,会员还能注册专享忠诚度项目,其中包括礼宾服务、合伙人利益专享及诸如腕表主题活动等独一无二的体验。听起来有点像男士腕表和飞机租赁公司Net Jets体验的大碰撞?公司创始人兰迪?布兰多夫(Randy Brandoff)在奢侈品营销领域拥有深厚经验,曾经在Net Jets担任高级副总裁和首席营销官、在Marquis Jets担任过执行副总裁和首席营销官。他的专长,加上年复一年增长势头良好的腕表行业,以及一种在其他市场证明行之有效的商业模式——看起来Elven James正是在恰当的时间叩开了市场的大门。
The Warriors and Timberwolves will arrive in Shenzhen on Oct 5 and will play at the Shenzhen Universiade Center.
China does not want to see a trade war between the US and China. That would not make our trade fairer and cause loss for the both sides.

"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

Michael Smurfit Graduate Business School at University College Dublin showed the best overall progress, moving up 21 places to 48. Guanghua School of Management at Peking University returns to the ranking at 38, after missing last year due to a low response rate from participants.
Google's brand is now worth more than 109 billion U.S. dollars, around 2 billion dollars more than Apple, making it the most lucrative in the world.

伯利兹城靠近墨西哥和加勒比海,各处都是露天的街头小吃摊,为游客们提供了很多较实惠的用餐选择。
Shares in Hyundai and AmorePacific slid on Friday, down 4.4 per cent and 12.5 per cent respectively in late afternoon trading in Seoul.
体积大未必就是好的。
再见,卡西尼号

陈女士说:“所有这些搜索项综合反映了2010年的许多方面,还反映了这一年政治和技术领域的变革。”
We will ensure workplace safety and people's lives.
2.管理自己,对他人负责
[freim]
源于pose摆姿势

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

泰晤士高等教育世界大学排名的编辑菲尔·巴蒂说,“学校的全球发展前景是一个名牌大学的重要标志之一。顶尖大学聘请来自世界各地的教师,吸引来自全球有极高天分的学生,并能与所有的一流专业合作——不管是哪个国家的。”
在海外工作过至少6个月的女性少于男性(比例分别为42%和52%),但动机完全一样:加强管理能力、打造自己的人脉以及提高薪资。

CDC

汤姆·汉克斯(Tom Hanks)的小金人一点也不孤单,他把因影片《费城故事》(Philadelphia)和《阿甘正传》(Forrest Gump)获最佳男主角奖而获得的小金人放在奖杯架上,周围还有足球奖杯和过去某个母亲节颁发的“全世界最伟大的母亲”奖杯。
That deceleration could prove a spoiler to broader growth if it continues apace, as observers have attributed sustained activity growth among manufacturers to stronger domestic demand.

公共检察官已决定释放若干人,并将起诉至少五人。
I do not see much evidence that radical “managerless” models such as “Holacracy” will catch on. But more companies will realise that if they constantly test innovative ways forward — as start-ups do — they will be more flexible and decisive than old-style bureaucracies and meritocracies.
赫洛维兹承认,他这样做时不得不小心翼翼,以保存这部间谍小说的首位作者伊恩·弗莱明(Ian Fleming)所创造的007的个性和态度。弗莱明于1964年逝世。
动词limit的过

Lady Bird
现任美国主席奥巴马的内阁共有7名女性,17名男性,克林顿曾是其中一员。
“我亲眼见到一个女人死了,并且我看到美国总统拒绝明确谴责杀害她的人。”
[si'lebriti]

目前还不清楚绑架者的身份以及他们的目的。
Beijing is pushing hard to conclude the Regional Comprehensive Economic Partnership by the end of the year. The deal has long been called China’s answer to the Trans-Pacific Partnership and its bid for regional trade hegemony.
唐纳德特朗普(Donald Trump)会遭遇弹劾程序吗?
上榜的15个在线MBA项目为在职高管们提供了灵活的学习选择,他们在毕业时可以获得与全日制“住读”MBA学员一样的学位。
除了跳舞,玛蒂还唱歌和表演,她已经出演了电视剧《美女上错身》(Drop Dead Diva)和《奥斯汀与艾丽》(Austin & Ally)。

对家长而言,整天抱着孩子非常费劲,尤其是孩子越来越大、越来越重的时候。
一定要展现自己过人的智慧,努力地表现出心神不定的样子。把那些社交技巧抛到脑后吧!
节目22 魔术《魔琴》,刘谦等
1. Apple. Brand love: 57% / Rank: 32
在这场充满政治色彩的颁奖典礼——唐纳德?特朗普(Donald Trump)屡次成为主持人吉米?基梅尔(Jimmy Kimmel)打趣的对象——的末尾,沃伦?比蒂(Warren Beatty)和费?唐纳薇(Faye Dunaway)宣布《爱乐之城》赢得此奖项。然而,就在这部达米安?沙泽勒(Damien Chazelle)编导的现代音乐片的制作人员和演员登上舞台、激动地发表致谢演说时,他们却被告知《月光男孩》才是真正的获奖者。

本田公司希望NSX将再度彰显其技术致胜的美誉,也希望NSX能提升本田作为高端汽车和卡车制造商的品牌形象。去年美国汽车市场销售增长5.9%,但本田在美销量仅微增1%——这意味着该公司失去了一部分市场份额,最重要的是,本田在与其两大主要对手丰田和日产的角逐中落于下风。
Nine out of the top 10 have all worked with Victoria's Secret in some capacity, with curve model Ashley being the only exception.
Here are the top 5 share repurchases authorized so far this year, according to data collected by Birinyi.
After an investigation, Rongchang police arrested Zhou on April 29 for endangering public security, according to the Chongqing Morning Post.

墓地主人的身份依然是个迷。这座墓地曾经被盗过,而且墓地中没有任何的文字记录来表明这些死者的名字以及他们的职位。
重点单词
“中国政府将GDP增长目标设定为7.5%,并努力将通胀保持在可控水平,很令人欣慰。这不仅会保持中国经济的繁荣,还将促进地区经济和全球经济的发展,印尼也将从中受益。”Imron Cotan, Indonesian ambassador to China
戛纳电影节素以质问与嘲笑著名。在本届电影节上,《青木原树海》(Sea of Trees)成为第一部遭遇观众挑剔的电影。该片由格斯?范?桑特Gus Van Sant指导。在媒体放映场,《青木原树海》遭遇嘲弄的风暴,陷入了嘘声之海。由于这些发生在首映红毯前,恶评迅速传播,使得盛典蒙上阴影。娜奥米?沃茨(Naomi Watts )和 马修?麦康纳(Matthew McConaughey)走上红毯时,《每日电讯报》(Daily Telegraph)形容此场景为“极其糟糕却又引人瞩目的羞辱之途”。但是在随后的新闻发布会上,马修?麦康纳,这位来自德克萨斯的演员表情坦然,“每个人都有权倒喝彩,正如他们有权喝彩一样,”他说道。我相信我们都知道他的意思。
有A型人格特征的人往往是高成就的“工作狂”。他们用最后期限激励自己,讨厌延迟和矛盾心理。A型人格的人工作压力更大,工作满意度更低。
Mr. Russell's 1970s Abscam fictionalization 'American Hustle' had the better night overall, winning acting awards for Amy Adams and Jennifer Lawrence. Best picture was the only award for '12 Years a Slave,' which came in with seven nominations, tied for the most with 'American Hustle.'

'I look a lot like her, we're really like an old couple.'
飓风厄玛在美国和全球的搜索排名图表中都位居前列,马特·劳拉成为在美国和世界搜索中人物搜索的第一名。这里是美国和全球排名前十的顺序表:
200911/90348.shtmlHere are the 10 winners of the 2012 Ig Nobel Prizes given to scientists, writers, and peacemakers who make silly but thoughtful contributions to the world, or as the Annals of Improbable Research puts it, "first make people laugh, and then make them think." I can vouch for them making us laugh!

后来,通用汽车在1958年设计出一款无人驾驶汽车,其原理是:由线圈感知道路中所嵌入电线的交流电信号,并相应地调整方向盘。然而汽车确实能自主驾驶,但并不能称为第一辆全自动驾驶汽车,因为它必须依赖嵌在地面的电线。在日本的筑波机械工程实验室,津川和他的几个同事发明了世界上第一辆自动驾驶汽车。然而,德国工程师恩斯特·迪克斯被称为无人驾驶汽车的先驱。1987年,他发明的"极速",时速超过90千米(56英里/小时),行驶了大约20千米(12分钟)。7年后,他发明的VaMP,不但可以识别道路标记,而且能定位自己在车道内的位置,还能勘测其他车辆,甚至能判断何时该变道。一年后,他和他的团队发明的自动驾驶汽车,从德国行驶到丹麦,最高时速为180千米(111英里/小时)。整段旅程中,仅有5%左右的路程是人为驾驶。
Qube会提醒你注意垃圾回收,在垃圾最后被倒出来的时候进行监控,并告诉你更换空气清新剂。但这些人们通常可以通过嗅觉和其他感觉器官来判断。现在有一个300美元的“优雅”不锈钢,会不断用讨人厌的移动警报提醒你。
在即将结束的2014年,标普500指数再次实现亮眼增长,而那些本欲跑赢该指数的基金经理们,表现则没那么出色。Lipper公司称,截止11月底,85%的活跃股票型共同基金经理业绩低于标普500指数。而在正常的年份里,跑赢该指数的基金经理比例是今年的两倍,也就是说,通常只有约三分之二的基金表现不如标普500指数。Lipper公司称,这是30年来活跃基金经理相对大盘表现最差的一年。
An EMBA also boosts corporate careers. “The skills I acquired were key to my promotion,” said one graduate. A fifth are now chief executives, managing directors or board members three years after graduation. Average salaries were up 52 per cent from $114,000 before the programme to $175,000 five years later.
In New York it is illegal for anyone to rent out a room in an apartment in a multifamily building for less than 30 days if a tenant is not present. Yet almost weekly, someone writes to Ask Real Estate seeking advice on how to skirt the rules. What if I swap apartments? What if nothing is in writing?