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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

广州一天卖房千套 “以价换量”难解库存高压

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 天津推动住房租赁市场发展 加强企业自持租赁住房管理 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

从全国来看,上个月70个主要城市中62个城市的房价环比上涨,1个城市房价不变,还有7个城市出现下跌。
周二在华盛顿DC倒下的大树把一条街拦住了。

这个交易对雷霆有诸多方面的意义:首先,吉布森可以短期内顶替受伤的埃内斯-坎特,而且他带来了季后赛经验、可靠的篮板球保障和坚实的防守——这些可能对阵马刺或火箭的季后赛时都是需要的。

"As a native of Shaanxi, I found Sun played the role well. She jumps and runs wildly, just like a typical young naughty Shaanxi girl," a netizen Xuelili said.
周二发布的官方数据显示,中国的出口在今年10月出现了连续第二个月收缩,这表明内需是PPI上涨的主要推动因素。
The Tsinghua-Insead EMBA programme, launched in 2007, entered the FT rankings with a bang in 2012, going straight into fourth place with its very first cohort. The programme has since been ranked second, third, and finally has achieved first place in the rankings this year.
单词designer 联想记忆:
还有仅仅9所商学院参与了所有4项排名。它们的排名从第三(西班牙企业商学院)到第38位(米兰理工大学MIP管理学院(Politecnico di Milano School of Management))不等。
Retail sales of consumer goods, a key indicator of consumption, rose 10.7 percent year on year in China last year, contributing 66.4 percent to the country's GDP, the Ministry of Commerce said earlier this month.
此外,该专家补充说道,受当前经济形势的影响,并且我国金融市场资源重新配置,银行业高速增长的周期已经过去。
担忧和愤怒要深刻得多,也更不吸引人。

"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

精准加力补短板。
n. 日历,月历,日程表

8. Software engineer
When he was offered the role of "Will" on Fresh Prince, he had 70% of his wages garnished for the first three seasons. After three years, he was able to take home his full salary. Basically, the first line of the theme song could have been written about Will Smith's real life: "This is a story all about how/My life got flip-turned upside down." Except in real life, the "guys making trouble in his neighborhood" was the IRS.
It makes piggybacks more comfortable.
年龄:33岁

[.di:m?'gr?fik]
Bedrooms are up a curving staircase. A loft-like library overlooks the central atrium. Walls of glass in the master suite and its en-suite bathroom take in acres of marshland. The suite opens to a sun deck on the water side of the house. Both other bedrooms also have en-suite bathrooms. The lower level is finished as a gym, with a half bath and a garage with space for several cars.
国家统计局中国经济景气监测中心副主任潘建成表示,研发经费与GDP之比不断上升,显示出经济增长正由传统要素(出口和投资)驱动向创新驱动转型。
两次发生在洛杉矶的反抗时间之旅。两次对女人之间时而棘手的团结的赞颂。四位演员的精彩表演,来自吉塔娜·基基·罗德里格斯(Kitana Kiki Rodriguez)、米娅·泰勒(Mya Taylor)、茱莉亚·加纳,以及了不起的莉莉·汤姆林。《与外婆同行》是制片公司资深导演的作品,《橘色》是用iPhone手机拍摄。任何哀悼电影已死的人,都应该闭上嘴巴,看看这两部影片。
Five programmes feature in the pre-experience ranking for the first time. The highest new entrant is Lee Kong Chian School of Business at Singapore Management University. The school came second in terms of the international mobility of its graduates, and is the first school to feature in both pre-experience and post-experience rankings.

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

伞上的链子可以系在狗狗的项圈或背带上。
在弗丽达·詹尼尼(Frida Giannini)为古驰(Gucci)设计的很多时装秀上都可以看到这种理念,包括2014年秋冬的台布渐变色和A字皮裙;2013年春夏的粉色长款衬衫和褶饰女主人连衣裙;2009年春夏的披头士风格鲜艳裤套装和宽松束腰长裙。

CDC

“We are currently investigating how this could have happened, and deeply regret that this occurred,” PwC said. “We appreciate the grace with which the nominees, the Academy, ABC, and Jimmy Kimmel handled the situation.”
“有些诡异的是,这跟马克o贝尼奥夫创立Salesforce.com时的情形非常相似,这点地方根本不够从事客户关系管理(CRM)使用,”米奇o哈珀表示。他与联席CEO艾迪o马查拉尼在2009年创立了这家公司。

2、《蝙蝠侠大战超人:正义黎明》
The Colombian singer, songwriter, dancer, record producer, choreographer, and model – Shakira stands 10th on the world's most beautiful women of 2015 list. She is listed as most powerful woman in the world by Forbes, and most popular dancer by wonders list. As of July 2014, She has become the first person to reach 100 million followers on Facebook.
Buyers and Sellers
Without a cellphone at hand, Sun tried yelling to get the attention of people outside, but no one responded as time passed by.

Harvard Business School, London Business School (LBS) and MIT Sloan School of Management, three of the MBA ranking’s longstanding heavyweights, all lost ground to their competitors. Harvard drops two places to fourth, the first time in nine years that the Boston school has been outside the top three. London Business School falls three places to sixth, its lowest position in 14 years. MIT Sloan School of Management falls to 13th place, the first time in 10 years that it has been outside the top 10.
7.Finding Dory
中公教育表示,周二报名的岗位中最抢手的是位于北京的中国就业培训技术指导中心的职位,已有1430人报考了该职位。
"Has anybody ever told you that you're a very pretty girl?" With these words to his co-star Elizabeth Taylor on the set of the 1963 movie Cleopatra, Richard Bu

上海社会科学院的专家周海旺告诉环球时报:“上海自2014以来就采取了一系列强硬措施,包括改造城中村和规范群租来控制人口增长。”
ex出,tend伸-伸出-延长;扩大
因为参加了一档电视真人秀节目《Dance Moms》,来自宾夕法尼亚州的12岁明星玛蒂?齐格勒火爆全球,澳大利亚流行歌手希雅的多首歌曲的MV中也有她的身影(图)
于上周二发布的《2016胡润IT富豪榜》显示,排在前50名的中国IT富豪的平均财富同比上涨13%,至创纪录的269亿元。
英国《金融时报》2017年高管教育排行榜列出了全球85个最佳定制课程和75个最佳开放课程。排名主要基于学员和客户的满意度以及学校收入增长、国际化程度和师资多样性等指标。

有些腐烂的鸡爪竟然出产于1967年,在腥臭扑鼻的处理场里,这些鸡爪经过漂白剂和其它化学物质“清洁”、涨泡、漂白流程之后,便可重新上市出售。
A partnership with IBM to sell iPads and iPhones to big corporate customers is just one example of how Apple is looking beyond its own walls more under Mr Cook, something Jobs had resisted.
会建立起稳定、流动性较强的比特币期货市场吗?
At the last minute he opted instead for Teach First, the educational charity that has become the UK’s biggest recruiter of new graduates. Rather than parachuting into companies that needed restructuring, Mr Ravenscroft started teaching business and economics at Cardinal Pole School, which serves 11-19 year old boys and girls in Hackney, east London.
1977:“俄罗斯型流感”H1N1感染人类1977: "Russian flu" H1N1 Infects Humans

“Policymakers around the world are cognisant of the impact the Fed decision will have and are worried, which makes us worried,” said Simon Lue-Fong, head of global emerging debt at Pictet Asset Management. “People are saying the decision is priced in but seeing as no one knows exactly what will happen how can that possibly be true.”
According to a research report on 2016 graduates released by 51job.com, a leading job hunting platform in China, 52.11% of college graduates found employment or started their own business.
Most entrepreneurs (78 per cent)used savings or relied on friends and family to raise all or part of their start-up funds. Angel financing was also a source for a quarter of entrepreneurs.
This compared to a decade ago when there were six Asian cities, 10 European cities and four US cities in the top 20 of the list that calculates living costs in 131 cities in 93 countries and is used by companies for costings when relocating staff.

我可能会说:“我解雇你是因为你工作不达标。”实际上,我并不会说是因为你实在让人受不了,每次和人沟通都会得罪人。
新上榜品牌有26个,其中前三名为乐视、安邦和东方财富,其中民营品牌占70%。小米品牌价值涨幅最大,其价值是去年五倍,为73亿美元,TCL和华为位居其后。
《何以笙箫默》
Or maybe you've become bolder in arguing against decisions you disagree with, Foss says. "Any variation to what's expected of you or from you could raise an eyebrow," she adds。
一家国际医学杂志撤销了107篇中国学术论文,由此引发了人们对中国学术诚信的关注。被撤稿的作者多数是临床医生。
The total amount of remittances, which is estimated to reach $450 billion in 2017, has risen by more than 50 percent in the past decade, IFAD said.

Despite the confusion, executive producer Ed Razek has commended the Chinese partners as “wonderful and enthusiastic hosts.”
4.A Sex Video
Federica Mogherini, the EU’s foreign policy chief, and Johannes Hahn, the bloc’s enlargement commissioner, have also weighed in, criticising Mr Erdogan’s proposed constitutional changes and his recent rhetoric.

n. 失业,失业人数
Mr Lam predicts that any recovery in the market will rely on appetite from cash-rich companies from mainland China, with foreign investors restricting their investments to real estate investment trusts or stocks exposed to developers, rather than actual property.
In this April 24, 1984, file photo, from left, Steve Jobs, chairman of Apple Computers, John Sculley, president and CEO, and Steve Wozniak, co-founder of Apple, unveil the new Apple IIc computer in San Francisco
他们先在伦敦中心广场上开了个熊猫聚会,接着来到特拉法加广场打太极。这一切都是第一届"感受熊猫"周的特别活动。
But the temperature of 1998 is now being surpassed every four or five years, and 2014 was the first time that happened without a significant El Ni?o. Gavin A. Schmidt, head of NASA’s Goddard Institute for Space Studies in Manhattan, said the next strong El Ni?o would probably rout all temperature records.