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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

卫计委:大中城市房价攀升 七成家庭不敢生二孩

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 广州:全力推动大湾区建设不断取得新成效 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

The data highlight the growing anxieties in some sectors of industry about what they see as unfair competition from Chinese rivals.
Index: 93.6

Others who made the top ten include Amazon's Jeff Bezos at fifth on the list, Mark Zuckerberg of Facebook at sixth, Oracle's Larry Ellison at seventh, Michael Bloomberg at eighth, and tied for ninth are David and Charles Koch.

从技术上来说,这是东盟(ASEAN)十个成员国将本地区所有贸易协议纳入一个整体框架的计划。它也没有TPP在许多方面的雄心。
Inarritu said: "I forgot to thank all the native Americans who made this film possible. I cannot say how surprised I am and how proud I am to have survived this film with all these fellows."
继去年10月被《时尚先生》杂志评为“最性感在世女性”、上月被《Details》杂志评为“最性感明星”后,这位美丽动人29岁女郎又得到一个荣誉称号:《男人装》杂志评选的“2013年最性感女性”,她打败了在榜上的其他99位女性和不计其数的未上榜女性。
影片评价极高,演技也大获好评,尤其是故事的主人公——那些孩子们,以及汽车旅馆经理的扮演者威廉?达福。
How much time? And to what extent will bitcoin, in seeking wide adoption as a currency and as a protocol for new applications, face the hurdle of mainstream consumers’ lack of understanding? Adam Ludwin suggests that people don’t need to understand how the technology works to appreciate it. “It has the quality of early Internet,” he says. “People don’t actually know anything about how it works, but they don’t need to know, or care. They just know they turn their computer on and can check email.”
Best Car Brand: Mazda
Microsoft Corp., Toyota Motor Corp., IBM Corp., Samsung Electronics Co. Ltd., Amazon.com Inc., Mercedes-Benz and General Electric Co. were also on the Top 10 list, according to Interbrand's 2016 Best Global Brands report.
网友“Xuelili”说:“作为一个土生土长的陕西人,我认为孙俪演得很好。她上蹿下跳的感觉,和典型的陕西妹子一模一样。”

"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

在毕业3年后的学员当中,男女毕业生薪资分别为9万美元和7.3万美元,相差近22%。刚完成学业时的男女毕业生薪资差距为17%,因此男女薪资差距随着时间推移而扩大(见图表)。
除了作为微信核心的私聊和群卿功能之外,用户还可以通过“漂流瓶”功能寻找新的好友,具体方法是录制一段信息装在虚拟的“瓶子”里扔出去,等陌生人捡起来回复。“查看附近的人”功能与一些手机交友应用相似,用户通过它可以浏览附近其他用户的资料。另外还有一个名叫“朋友圈”的功能,用户通过它可以将相册公开分享给好友群,跟照片分享应用Instagram很像。

Forex reserves fell $87bn in November, near the record $94bn decline suffered in August — the same month that the central bank surprised global markets by allowing the renminbi to depreciate by 3 per cent in three days.
Manufacturing has held up better, with profits growing 6.5 per cent, while profits from utilities such as electricity, heat and water grew 17 per cent, boosted by lower energy prices.
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%。
We learned about a warehouse that is like a mausoleum for endangered species.

担忧是围绕向下流动(downward mobility)和文化变迁,而愤怒是针对移民和冷漠的精英。
GAINS AND LOSSES IN A CHANGING WORLD
吊床架
我国发展到现在这个阶段,不靠改革创新没有出路。我们拥有世界上数量最多、素质较高的劳动力,有最大规模的科技和专业技能人才队伍,蕴藏着巨大的创新潜能。
Snap, however, has sunk to about $15 after initially rallying from its IPO price of $17 in March, damping some expectation of further activity involving so-called decacorns, tech companies that have achieved valuations of $10bn or more through private funding.

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

他最近已开始和玛丽莎?梅耶尔(Marissa Mayer)、鲁伯特?默多克(Rupert Murdoch)这样的产业大亨进行会面(默多克正是《华尔街日报》(The Wall Street Journal)所属新闻集团(News Corp.)的董事长)。目前达洛伊西奥的资产净值已经很高,但还没多到令人眼红的地步。但正如轻博客(Tumblr)创始人大卫?卡普(David Karp)和29岁的Facebook神童马克?扎克伯格(Mark Zuckerberg)一样,达洛伊西奥已非常值得钦佩。Summly早期投资方之一、兴盛资本(Thrive Capital)创始人乔舒亚?库什纳(Joshua Kushner)评价道,他的气场能震住整个房间的人,他这个年龄自我意识能如此之强,实属难得。
1. 詹妮弗?劳伦斯

CDC

谢亚轩估计,11月中国外储下降的大约40%(350亿美元左右)可归因于欧元和其他货币相对于美元走弱的估值影响,而不是资本外流。
“疲软的国内需求和大宗商品价格下跌继续拖累中国的进口增长,”澳新银行(ANZ bank)经济学家刘利刚表示。“展望未来,中国的出口行业仍将面临一些重大不利因素。”

单词conduct 联想记忆:
Gongloff piles on the bad news about 2014: GDP 'grew at a 1.8% annualized pace in the first quarter ... revising down its earlier estimate of 2.4% growth ... The first quarter's dismal growth was at least better than the 0.4% GDP growth of the fourth quarter of 2012. But it was still far from healthy, and economists don't see it getting much stronger any time soon.' And that's real bad news for the markets going into 2014.
The price of gold has risen 15 per cent since the beginning of 2017 to trade at $1,334.78 a troy ounce.
5、Poor e-mail communication

Actor in a Mini-Series or Movie: Courtney B. Vance, “The People v. O. J. Simpson: American Crime Story”
但他认为自己任教的经历非常宝贵,可以让他很快适应新的职业阶段。
泡沫气球是泡泡和气球的混合体。
The thing about the Mavericks is that this is not at all how Dirk should go out. That team has been so solid his entire career. To have a busted season now is painful. Maybe he ought to have joined Kobe, KG, and Big Fundamental last summer.

The two extraordinary sex toys will go on display at an upcoming exhibition at the Asian Art Museum of San Francisco in the United States.
Wang Ki-young, a director at South Korea’s culture ministry, said on Friday that Chinese authorities had ordered tourism agencies in Beijing to halt tours to South Korea from mid-March. Mr Wang said the move would be expanded to other provinces.
克里斯托弗诺兰的这部二战题材电影可能就是最佳影片的领跑者。
这些模子能让普通水果长出有趣的形状。
中俄双方经贸合作的潜力很大,互补性很强,双方所达成的经贸关系目标是可以实现的。

Awards: Despite early wins for VW’s Golf GTI, the Detroit-centric jurors of the North American Car and Truck award 2015 prizes to Ford’s Mustang as well as Ford’s F-150 pickup truck.
特斯拉表示,在该公司的展厅里,每平方英尺的面积带来的销售额是苹果公司(Apple)的两倍,而苹果目前被公认为是行业领军者。
Wishing you all the blessings of a beautiful season.愿你拥有美丽的新年所有的祝福。
Over the past three years, drawing conclusions about China's box office growth has been complicated by Beijing's decision to include new service fees in official revenue totals.
正是由于零部件的不断缩小,这些科技设备的运算效率才得以释放,让它火遍全球。

Despite car and truck sales that motored past 16 million for the first time since 2007, recalls dominated the news for most of the year. General Motors GM 1.42% held center stage, dealing with cascading revelations about faulty ignition switches and recalling millions of vehicles. While GM opted for something approaching full disclosure of its missteps , publishing an report into company-wide fumbles, Japanese airbag maker Tanaka chose to stonewall. It left any remedies up to its beleaguered customers, notably Honda and Toyota. They are the ones who deal with the fallout of exploding safety devices that fatally fired shrapnel throughout the passenger compartment.
People (read: your boss) will notice if you go from sporting a uniform of jeans and a T-shirt to showing up in a tailored suit on interview day. This is all the more reason to take the day off from work to interview, but if you don't, dress as usual at the office. And then, Foss says, "leave the premises, and stop in a McDonald's parking lot on the way to the interview to change."
智能水瓶
因为一种鲜为人知的病毒所造成的重大影响,2016年将在全球卫生方面被人们铭记。这似曾相识,不过此次登上全球头条新闻的不是埃博拉病毒,而是寨卡——一种通过蚊子传播的病毒,大脑存在缺陷的新生儿数量在巴西急剧增加与此有关。

中国国家旅游局周五发出通知,确认了最近几个月中国游客因所持旅游文件不完整而被拒进入韩国济州岛的报道。该机构提醒中国公民“慎重选择旅游目的地”。
因城施策去库存。
Mr. Anderson wanted an abundance and a variety of facial hair on the men, with no beard or mustache adorning each actor’s face in quite the same way. It’s a veritable hipster’s row of styles, from pencils to handlebars to a black-and-gray goatee worn by Jeff Goldblum.
The top 10 Weibo celebrities now have a combined 40 million followers. One of the most famous online figures, Papi Jiang, already signed a contract for video ads worth a staggering 22 million.
一些深受喜爱的电视剧角色就像老朋友一样存在于我们的生活中,并对我们产生翻天覆地的影响。我们为之捧腹大笑,也为之潸然泪下,甚至不惜撒谎请假,只为能够端坐在电视机前得知他们的最新进展。自始至终,我们对他们如痴如醉。但是还有很多东西是观众无法从银幕上得知的,比如隐藏在这些电视剧中的小秘密。下面就是一些受人追捧的电视剧的幕后故事。
If Dwyane Wade lost 30 pounds of muscle, you wouldn't be able to tell him apart from the high school version of himself.

哥伦布日在1971年成为美国假日。银行、州政府办公室、邮局和联邦机构都会放假。债券市场休市,但许多商家和股票交易所继续开放。
He and his girlfriend wrote to each other when he was studying science, he said.They did eventually marry and have four children.
The first drone can be traced back to 1916 when British inventor Archibald Low designed and flew the first unmanned radio-controlled vehicle. The drone was made to counterattack German Zeppelin airships, and it also carried out ground attacks during World War I. It was made with wood and tin, its wings taken from the lower wing of another biplane. Overall, the drone was somewhat unsuccessful because the noise from its engine interfered with its radio. The Sopwith Aircraft Company also tried making a drone in 1916. They placed the radio equipment at the tail so that the engine would not interfere with its signal, but their drone never flew as it was damaged in an accident on the ground. Low would try flying his drone again in 1917 when he flew it in front of some senior military officers. It was launched from the back of a lorry and flew for some time before crashing due to engine failure, almost killing the military officers present.

然而,一位要求匿名的律师表示,Teach First人从事教学工作获得的经验和自主能力可能意味着,他们会对再次从一家机构的底层做起感到沮丧。
Female vocalist: Miranda Lambert
米尔德里德的女儿7个月前遇害,但凶手仍然逍遥法外,主角一怒之下做出了一个大胆的决定:买下了小镇入口三张广告牌并在张贴图片中抨击颇有威望的警长威廉?威洛比。威廉的副手官迪克逊是一个幼稚的妈宝男,有暴力倾向。迪克逊卷入这件事后,米尔德里德和小镇执法系统之间的较量变得愈发激烈了。
贝南克(Bernanke)说今年晚些时候的经济将会走强,所以到时候他可以松开油门,也就是“在今年晚些时候开始减弱刺激性的量化宽松(QE)计划”。对此麦嘉华(Marc Faber)笑了。没错,他笑了。
该项目的另一个好处在于,它鼓励了职业灵活性,让年轻人对曲折的职业道路有所准备,而后者可能在现代职场中是必不可少的。