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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

个别地方楼市投机炒作抬头 过热城市须"踩刹车"

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 广州烂尾18年的“广告楼”终于拆了 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

“多年以来,我们看到中国增长势如破竹,而美国增长率却在下降,”保险商耆卫(Old Mutual)旗下资产管理公司Old Mutual Global Investors的亚洲股票业务主管乔希?克拉布(Josh Crabb)说,“但是,交易量下降得相当厉害,所以我们并不真的确定当前价格到底如何。看起来,香港市场的基本面展望非常严峻。”
从10年和20年的时间跨度来看,地域和资产类别的多元化已经证明对投资回报和风险管理有益。不幸的是,在12个月内,不一定能看到此种战略的好处。在如今这个140字微博消息和2分钟短视频盛行的时代,投资者不能以长期的表现来判断其投资组合的成败,又有何奇怪?

Work that requires German language skills also grew significantly during the third quarter of 2016. Those who wish to work as German translators might be in luck these days.

节目34 歌曲《家人》,谭晶
与此同时,在线旅游公司途牛(Tuniu)一名销售人员告诉英国《金融时报》,该公司周五已“因萨德问题取消了所有韩国游”。在该网站上搜索韩国游,会弹出一则消息:“ 抱歉,没有找到符合条件的产品。”
China is spending heavily on renewable and nuclear energy as it tries to slow the growth of coal, but despite those efforts it has become by far the largest emitter of greenhouse gases. Its emissions of 10 billion tons a year of carbon dioxide from the burning of fossil fuels and cement manufacturing are almost twice those of the United States, though emissions per person are still far higher in the United States.
尽管在奥巴马担任美国总统的过去的四年里,美国经济复苏缓慢、失业率居高不下,奥巴马在几个关键的摇摆州获得的选票还是高于罗姆尼。美国选民在两种风格明显迥异的国家发展愿景中做出了自己的决定。
adj. 聪明的,时髦的,漂亮的,敏捷的,轻快的,整洁的
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。
The frame is easily assembled and attaches to paddle boards, kayaks, and rafts.
Format: Five residential periods with online learning in between

"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

艾伦非常有才,主持也自然,她知道如何调动世界范围内的观众的心绪。她是奥斯卡的铁杆粉丝,而我们也是她的庞大粉丝团。真是完美的契合。
2010 U.S. unemployment rate (average): 10.2%

谎言6:我29岁。说谎原因:29岁听起来比30岁要年轻多了。
位于芬兰赫尔辛基的开发商Remedy Entertainment通过之前的作品《英雄本色》(Max Payne)和《心灵杀手》(Alan Wake)模糊了好莱坞和游戏之间的界限。如今,这家工作室将次世代的图像技术与紧张气氛和电视剧剧本结合了起来。故事设置在Riverport大学城,玩家将控制杰克o乔伊斯和贝斯o怀尔德。这两人原本是普通人,但在一次导致时间裂缝的意外中,他们获得了操纵时间的超能力。在游戏过程中,时间体系会随时崩溃,导致环境中的时间暂停、断续、倒流和冻结。玩家在游戏中会与帝王联盟(Monarch Corporation)展开对抗,喜欢《英雄本色》中子弹时刻的玩家,可以在放大时间因素的枪战中寻找新的战略。除了虚拟的故事情节,游戏还采用了定制的实景真人叙事模式,根据玩家的不同选择将产生不同的后果。
在几代人之中,工薪阶层的白人受到双重赐福:他们既拥有种族所带来的特权地位,也受惠于经济的繁荣发展。
n. 文件,公文,文档

A devastating financial crisis led business owners and corporate executives to be especially wary about adding staff or investing in new equipment. Some worry about risks from Washington or overseas. Others are seeing consumers maintain their slow-but-steady spending, providing little incentive to deploy their cash stockpiles.
而是穆斯克在会上表示,预计特斯拉到2015年底将实现10万台的年产量。
然而,夏威夷航空公司公共关系高级专家休伊·沃(Huy Vo)说,占据该公司半数以上航线的短途航班实际上运营并不容易。他表示,“我们的地理位置确实给我们带来了优势,也给我们带来了短途航线。不过,这些短途航线最难保持准时到达,因为飞行距离很短,航班在地面的停留时间也短,因此任何延误都会难以弥补。”
在中国版推特新浪微博上,很多网民为男孩危急情况下的勇敢、淡定点赞。
Lufax, which started four years ago has emerged as the leader due to innovative credit rating techniques.

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

一场破坏力巨大的金融危机令企业主和高管们在增加雇员和投资新设备上尤为谨慎。一些人士还担忧来自华盛顿或海外的风险。其他人士则预计消费者将维持缓慢但稳定的支出速度,这使企业没有太多动力来动用现金储备。
adv. 真诚地,真心地

CDC

Other commentators, such as Raoul Leering, head of international trade analysis at ING, the Dutch financial group, fear the outlook is bleak even in the short term.
8.文盲

9. Meghalaya, India-"Meghalaya won't stay this quiet for long; go before thrill seekers storm the Khasi Hills," advises Lonely Planet. Pictured is Nohkalikai Falls, India's tallest plunge waterfall at 340 meters.
7.思想控制仿生腿
去年八月北韩一位边界士兵试图射击一些气球,但最终引致了边界双方的一场重机枪交火。
蒂莫西·哈顿(Timothy Hutton)的小金人对归属问题做出了最好的答复,哈顿曾在影片《凡夫俗子》中表现十分优异,并成为奥斯卡金像奖最年轻的最佳配角奖得主。在数年前的一次聚会中,他的姐姐突然从冰箱里拿出小金人,和啤酒一起随机放在某处,使宾客们能够碰巧在路上拿到它,从而提提神。显然,现在它还在那里。

著名美国谐星梅丽莎?麦卡西收入为3300万美元,比去年增加了1000万美元。
Every January for the past decade I have handed out awards for horrible use of language in business. Usually the task amuses me. This year I have found the sheer weight of euphemism, grammatical infelicity, disingenuity and downright ugliness so lowering I have decided to start the 2016 Golden Flannel Awards with something more uplifting: a prize for clarity.
May everything beautiful and best be condensed into this card. I sincerely wish you happiness, cheerfulness and success.
And the public chose Callabro to be crowned this year's winner, where they will take home a £250,000 cash prize and a spot at this year's Royal Variety Performance.

阿丽莎也微笑地说道:“无可挑剔,一直唱下去,男孩们!”
达洛伊西奥设计了一款名叫Summly的应用软件,该软件能够将繁冗的文章精简成几行关键句子。早一代Summly软件发布后,技术观察家意识到在这个无论资讯还是财报,一切新闻都快速阅于掌上的时代,这样一款简洁、精准的摘要软件蕴含着巨大的价值。该应用吸引了包括好莱坞明星和亚洲首富李嘉诚在内的全世界投资者的兴趣。
Accounting and consultancy
In 2012, Google introduced Google Glass, a computer you can wear on your face. Someone wearing the glasses can be walking down the street or doing any everyday task while simultaneously seeing an overlay of calendar appointments, messages, and subway alerts. They can make video calls and even upload live videos to the Internet while on the move, without ever needing to use their hands. Google Glass might be cool, it might be new, it might be revolutionary, but it's definitely not the first pair of wearable computer glasses.
One of the more notorious incidents was when Zhu Ling, a student at the prestigious Tsinghua University, was paralyzed when her roommate allegedly poisoned her with thallium in 1994.

We asked FlightAware to look at arrival delays, rather than departure delays, because it is sometimes possible for airlines to make up time lost on the ground while the plane is in the sky.
Chinese direct investment in the eurozone was up 37 per cent in 2015, rising to $17.1bn from $12.5bn.
榜单的前20名中,除了排名第四的复旦大学和第六名的北京大学这两所综合类高校之外,其余席位多被财经类和理工类高校占据。
“白”之禁忌
Effective email marketing involves more than occasionally blasting out a newsletter. To build an effective email marketing strategy, you need a tool packed with functionality. MailChimp seems to be the best system out there, offering elegant, intuitive newsletter templates, advanced list segmentation features and marketing automation capabilities.

这些包括纳米汽车在内的轻巧设计小得甚至连肉眼都不可见。
投资者也关注到了本田的这一困境。尽管在席卷全球的金融危机中,本田是全球少数几家能独善其身、避免严重亏损的汽车厂商之一,但在过去几年中,其普通股股价下跌了17.2%,而同期日经225指数却上涨了7.4%,丰田汽车的股价也上涨了19.5%。
tempor时间+ary表形容词,“…的”→短暂的
我的核心价值观是什么?作为一个人,对你来说什么是重要的?家庭、健康、信仰、工作还是其他?确保在你的生活中,你追寻了自己最在乎的东西。

Since its first release in 1995, many new versions and sequels have been created. However, fans say none could replace the breath-taking and tragic tale of the original.
Two terrifically entertaining, ensemble-driven, fact-based procedurals about appalling crimes and the institutions — the Roman Catholic Church and Wall Street banks — that allowed corruption to fester. In addition to mustering righteous anger, Mr. McCarthy and Mr. McKay, in very different ways, managed to infuse the routines of modern work (answering phones, typing on keyboards, scrutinizing spreadsheets) with suspense, emotion and moral gravity.
筹备IPO交易的公司正在增多,尽管今年在美国高调上市的Snap(旗下拥有Snapchat)表现不佳,同时投资者担忧欧元不断走强可能遏制欧洲企业的盈利复苏。
Mr. Nathan was among the few dealers actively bidding at the evening sales. Buying on behalf of a client, he paid 506,500, or twice the estimate, at Christie’s for Charles-Antoine Coypel’s 1737 painting, “The Destruction of the Palace of Armida.”
Had the North Koreans not set off another nuclear test at the weekend the big story this week on the Korean peninsula might have been the Trump administration’s odd timing in announcing its plans to pull out of a trade deal with Seoul.
由普华永道与中国发展研究基金会联合发布的报告称,广州、深圳、杭州、武汉、南京是我国五大“机遇之城”。

The strength of Kellogg/HKUST is the quality of its participants.
Song “The Spring Blossom” (Na Ying)
Li Xiaojin, a professor at Civil Aviation University of China's Economics and Management College, said that rapidly increasing numbers of flights and limited airspace for civil aviation are the major reasons for delays.

供给侧结构性改革:去产能、去库存、去杠杆、降成本、补短板
Adapted from an online novel Queen of No.11 Agent, the TV series is about the adventure of a female slave Chu Qiao and her romance with a prince Yan Xun.
与此同时,红毯上出现了一个不幸的窘境,粉红佳人和夏奇拉穿着相同的巴尔曼礼服现身。
世界知识产权组织总干事弗朗西斯.高锐在记者会上表示“中国的表现必须予以强调,他们的排名排到了第25位,与那些多年来一直位居全球创新指数前列的高收入国家比肩而立。”
镜头切换到《爱乐之城》的演员和剧组人员那里,他们高兴得抱成一团了,但大家可以听到比蒂好像在说:“应该是爱玛?斯通。”而唐纳薇回应道:“什么?”当《爱乐之城》剧组上台领奖时,可以听到旁边的舞台管理人员说:“哦……哦!天啊!他拿错信封了!”