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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

5月 限竞房销售新规落地

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 二三线城市谨防虚火蔓延 投资投机性需求回潮 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Edgar Wright’s Baby Driver is one of the most entertaining thrill rides of this year, this decade. This century.
Beijing has responded with increasing rancour against Seoul’s decision to deploy Thaad, the Terminal High Altitude Area Defence platform. While South Korea insists the system is for defending itself against North Korean missiles, China fears the technology will allow an ally of the US to spy on its military developments.

200911/88512.shtmlA love letter to a US college student from the girlfriend who was to become his wife is finally on its way to him - 53 years after it was written in 1958.

答:AZ里面的角色不是我创作的。在最初版本出来之前,我给故事写了大纲。但伊奈帆这个角色最后呈现出来的,其实和我写的不大一样。我和这个角色之间没什么联系,所以说这个人物算是例外吧。
IE商学院的在线MBA持续吸引着高素质的学员。其半数校友在入读时为高管级别,为所有上榜学院中比例最高的。该学院的在线MBA学员在毕业3年后的平均年薪最高,为17.9万美元,比薪资排第二位的(巴布森学院(Babson College)奥林商学院(Olin Business School))高出约3万美元。
单词survival 联想记忆:
3. Jeonju, South Korea-Hundreds of traditional Korean houses remain in central Jeonju's Hanok village.
PRICE PER SQUARE FOOT: $395
The Baltic Dry index, a measure of the trade in bulk commodities, has been touching historic lows. China, which in 2014 overtook the US as the biggest trading nation, this month reported double-digit falls in both exports and imports in January. In Brazil, which is experiencing its worst recession in more than a century, imports from China have collapsed.
The 2017 rankings feature the top 60 pre-experience courses for students with little or no background in the industry and the top six post-experience programmes for professionals already working in the sector. Only a handful of schools offer post-experience courses.
"I am a doctor and I prefer to speak frankly. A person's health is related first to eating, drinking and air. Any kind of development will be nothing if the quality of food, water and air is not good." ZHONG NANSHAN, NPC deputy and academic with the Chinese Academy of Engineering

"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

据中国科协21日发表的声明称,在会谈中,王春法对安诺杰表示,中国正在进行科技管理体制改革,此类问题将有所减少。
“The steady and now record-breaking rise in average global temperatures is not an issue for another day,” Michael R. Bloomberg, the former New York mayor who is spending tens of millions of dollars of his personal fortune to battle climate change, said in a statement. “It’s a clear and present danger that poses major economic, health, environmental and geopolitical risks.”

Given the Raptors' existing personnel, the Ibaka/Tucker additions qualify as massive defensive upgrades, giving coach Dwane Casey the tools he will need to grind out postseason wins if Lowry and DeMar DeRozan see their scoring efficiency dip as it has in years past.
The world’s 100 biggest brands still command a significant premium over others and that value increased by 3 per cent to $3.4tn this year, according to the latest BrandZ rankings compiled by Millward Brown, the research agency.
伦敦博蒙特·内森顾问公司(Beaumont Nathan)的联合创始人雨果·内森(Hugo Nathan)说:“新投资者对早期绘画大师的作品有兴趣,不过他们想要的是杜维恩(Duveen)卖给强盗大亨们的作品。他们想要名作。”他指的是英国艺术交易商约瑟夫·杜维恩(Joseph Duveen),他把很多伟大的艺术品带去了美国。
Stand: Costco CEO Craig Jelinek refused to open on Thanksgiving Day

希拉里?克林顿和唐纳德?特朗普之中的一人有望于在十一月的美国总统大选中胜出,就任年薪40万美元的总统一职。
"My hair has turned white, half because of housing prices and half because of you reporters." JIANG WEIXIN, member of the CPPCC National Committee and minister of housing and urban-rural development, responding to media questions about government measures to curb housing prices
Agricultural raw materials, especially the so called soft commodities such as sugar, coffee and cotton, have been among the top performers this year.
圣加伦大学其他单项高分包括在校友国际流动性方面排名第一,在国际体验方面屈居亚军,在就业安置方面排名第三。
5. What are my core values? What is important to you as an individual? Is it family, health, spirituality, work, etc.? Make sure that you are living in alignment with what matters most to you.

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

For: Well-received by both audiences and critics, it tells a crucial slice of history.
负责2012伦敦奥运会国际游客接待的8000名志愿者,收到了一份长达66页的指南手册,里面包含了大小事项,从国外礼节到着装细节再到如何和记者打交道。可是外国游客们的指南在那里呢?没有指南手册告诉他们即将游览的英伦三岛的习俗、礼仪和其他事项,他们能行吗?为了2012伦敦奥运会,我们下面就来简单介绍一下外国游客在奥运会期间的伦敦生存指南。

CDC

公司的运营情况不好。
恭贺新禧,万事如意。

在今年的榜单上,美国学校恢复了自己的优势,上榜的美国学校数量增至51所。2016年,这一数据首次跌破50,降至47所。在8所新上榜或重新上榜的学校中,有6所来自美国。
智能衣服挂钩
希拉里的回应则迎来了掌声:"我认为我是个女权主义者,因为我相信在我们经济和社会的方方面面,女性都应该获得跟男性同样的权利,不管是在我们国内,还是在整个世界上。你们知道,我在公共生活中将大量精力投入到了为女性倡权上,通过法律、规定、文化等途径做一切力所能及的事情,改变依旧存在的、让女性退缩的那些成见。"
10.被授予爵位的企鹅

The full list of this year's honorees follows.
失业率的大幅下降的实际效果将会有所体现
Steven Spielberg directs Meryl Streep and Tom Hanks in The Post, a thrilling drama about the unlikely partnership between The Washington Post's Katharine Graham (Streep), the first female publisher of a major American newspaper, and editor Ben Bradlee (Hanks), as they race to catch up with The New York Times to expose a massive cover-up of government secrets that spanned three decades and four U.S. Presidents. The two must overcome their differences as they risk their careers - and their very freedom - to help bring long-buried truths to light.
9.Fantastic Beasts and Where to Find Them

“The individual sent an email blast to the entire staff.”
"Migration should be an option, a choice. But for 200 million people, it's a necessity," he told the Thomson Reuters Foundation in a phone interview.
贾斯汀比伯名列第五,因他为慈善组织Pencils of Promise和Believe Charity Drive做的贡献。
The deal makes a millionaire of 17-year-old Mr D’Aloisio, who taught himself to write software aged 12 and will join Yahoo’s London office while he continues his studies at school.
9. 杰西卡?帕尔

美联储上个月公布了今年放缓购债步伐的时间表。美联储计划在每一次政策会议上将购债规模减少100亿美元,直到今年年底不再进行购债。自从2012年末以来,美联储每个月都买入850亿美元美国国债和住房抵押贷款支持证券。
还有些电视剧不如人们最初预料的好,不过仍有吸引力,最显眼的是映时频道的《婚外恋》,它一开始看起来像汉普顿斯式黑色电影,后来变成了法国艺术电影。剧中的罪行与过于缓慢的节奏以及《罗生门》(Rashomon)式的讲述方式不太相称,不过该剧在最后几集势头大涨,悬念丛生。
《火线警探》,FX,1月20日。副警长瑞兰·吉文斯(Raylan Givens,蒂莫西·奥利芬特[Timothy Olyphant]饰)与他的朋友兼天敌博伊德·克劳达(Boyd Crowder,沃尔顿·戈金斯[Walton Goggins]饰)之间爱恨交织的关系贯穿了整部剧,不管怎样,这个问题将在第六季,也就是最终季中得到最终解决。
2. “Inside Out” (Pete Docter)
Dawn Hudson, Academy CEO:

但是,当《老友记》第二季浓墨重彩地展现卡罗尔和苏珊的同性恋婚礼时,这个剧集就朝着人人平等的方向迈出了一大步。幕后,执行制片人玛塔·考夫曼说:"国家广播公司预计会接到成千上万的投诉电话和邮件"。然而在这部剧集上映之后,收到的恶意信件却是寥寥无几。原来,大家根本就不在乎。
The Nobel Prize in physiology or medicine was awarded to a cellular-level experiment.
But national and racial identity were often conflated for the white majority. That identity felt to many white people like one of the most important pillars holding up their world — and now it seems under threat.
remembrance

Businesswomen are booming in Asia: The whole region makes a strong showing, from China and Singapore to New Zealand and Thailand. Entrepreneurship is on the rise: see Zhang Xin (No. 50) , Sun Yafang (No. 77) and Solina Chau (No. 80). And Asian region women are showing their political might, from newcomer Park Geun-hye, the South Korean president (No. 11) and Burmese dissident and parliamentarian Aung San Suu Kyi (No. 29) to Australian PM Julia Gillard (No. 28) and Thai Prime Minister Yingluck Shinawatra (No. 31).
23岁的古纳尔?优素福(Gunal Youssouf)是Teach First人,她加入了普华永道(PwC)英国分公司的管理咨询毕业生项目。优素福表示,在Teach First的两年让她有机会在不用花钱攻读传统资格证书的情况下尝试教学工作。
除此之外,该杂志还指出,特朗普为竞选总统自掏腰包6600万美元,并且支付了2500万美元用于解决特朗普大学的相关诉讼。
Law firms will lead the pack, with 30% expecting to add staff. Paralegals with four to six years' experience are in particular demand, as are attorneys who specialize in "lucrative areas like litigation, health care, bankruptcy, and foreclosure law," the report says.
AdWords事实上是一个竞价排名系统,在支付费用之后,它会把客户的广告列在谷歌搜索结果和其他网站的靠前位置。只有当有人点击这些广告链接的时候,客户才需要支付费用。
我发现自己很难开启一段对话

n. 商业广告
然而,时间较长似乎并不代表学业较轻松。要保持学习劲头,合理的时间管理至关重要。英国华威商学院的一名毕业生谈到:“几个必修项目会帮助你跟上进度并避免在最后阶段非常紧张。”总的来说,2012级毕业生花了两年半多一点的时间完成学业。
7.助听器

不过,中国的手机制造商却在2016年实现了崛起。华为出货量同比增长了30.2%,达到了1.393亿台,再次排在全球第三。
据《重庆晨报》报道,经调查后,荣昌警方于4月29日以危害公共安全的罪名逮捕了周某。
最近的一个例子是:当格温o史蒂芬尼发布新专辑《 Spark the Fire》时,Swyft公司即时设计了一个免费贴纸包,在自己的几个短信应用中推出。它被下载了近一百万次,并在用户中传送了七百万次,最后在10天内被观看了4100万次。雷表示,对任何品牌来说,要在其他渠道达到这样的广告效果,需要花上5万到25万美元。
It is the first time that news came up first since the technology company began publishing its yearly review a decade ago.Vera Chan, the company's senior editor and web trend analyst, said the BP oil spill was the most searched topic for term for a variety of reasons.
China’s outbound non-financial investment fell 40.9 per cent during the ten months through October, according to official figures, reflecting the enduring impact of strict capital controls.