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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

房子过去20年里缘何暴涨?房价3到4年后将迎拐点

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 个人所得税法修正案草案本月底将迎来二审 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

这张专辑等于是一次直截了当的暗示,提醒着我们,不论什么时候,只要霉女王想要,她就能拿回自己在流行音乐界的领先地位。
昔日影坛风光无限米高梅公司重组计划已获得批准,电影公司将由望远镜娱乐公司( Spyglass Entertainment )掌舵再次出发。而MGM也将不会在作为电影电影发行公司,而仅仅是一个制作公司。这使得第二十三部《007詹姆斯-邦德》电影问世日期更加具体化。

Julian Evans-Pritchard, China economist at Capital Economics, commented:

单词associate 联想记忆:
如果你在工作时间去寻找其他的工作岗位,很明显,你想要辞掉你的工作。去找一份新工作吧,如果找到,就换吧。
从投资决策角度来看,2014年是有史以来最糟糕的年景之一,几乎可以说是全盘皆输。除了少数华尔街亿万富豪才玩得起的“股东积极主义”维权策略还算奏效外,没有哪种投资策略在这一年里始终灵光。
在经历了长达几十年的许诺后,新的基因疗法终于开始有了一些真实的好成果。不过就像所有的新型疗法一样,基因疗法需要向公众准确地传递如何治疗以及治疗背后的原理,这和疗法本身一样具有挑战性。
People with near-perfect memories actually exist, and they have something called an "eidetic memory," which means they can recall a remarkable amount of information from their past experiences. Interestingly, many people assume having an eidetic memory means having a "perfect" memory, but even these superhuman memory machines can have some trouble recalling absolutely every detail with crystal clear accuracy. However, that doesn't mean you can't emulate these memory superstars and improve your own memory and protect yourself against age-related diseases and maladies.
你的阑尾终究可能不是一个无用的进化副产物。你的阑尾不像智齿那样,事实上它可能发挥着重要的生物学功能,恰好现在人类还没准备好放弃阑尾的这种功能。
4.阿迪达斯。品牌喜爱度:35%/排名:25
无论从哪个角度看,2014年都是本田汽车公司宁愿忘却或掩盖的一年,看看本田为2015年提出的宏大口号——“本田之年”就知道了。

"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

8."Homeland" (2.4 million)
这造成了一种有待填补的身份认同真空。

“I think the best way to engage young people in the process is to win,” he says.
日本总体排名第五,是亚洲表现最优异的国家。“原动力”排名第五,“前瞻性”排名第一。
n. 增加,附加物,加法
More than 27,000 vacancies are offered by over 120 central departments and their affiliated public institutions in the 2017 civil servant recruitment drive. The number of vacancies is about the same as 2016.

Premiered in August, the 48-episode TV series is a fictional story, with a plot centering on struggles and romance during the Qin Dynasty (221-206 BC).
凯文·杜兰特
Although Downey has a few movies coming out next year, they’re much smaller than his superhero films. He won’t see another huge payday until 2015 when Avengers: Age of Ultron hits theaters.
报告同时也显示,双十一已经成为由淘宝,天猫,京东领衔的电商的最大购物活动。
Apple Chief Executive Officer Steve Jobs holds the new " iPad" during the launch of Apple's new tablet computing device in San Francisco, California, in this January 27, 2010

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

值得庆幸的是,这些户籍规定正在发生改变。12月初,在中国中央经济工作会议上,与会代表建议给予农村居民城市户口,这也强有力地证明了户籍制度正在变化。温家宝总理于12月底呼吁,应加快户籍制度改革的进程。
中国与世界其他地区的贸易10月同比大幅下滑,原材料进口受到尤其沉重的打击,中国投资放缓削弱了这个全球最大商品贸易国的需求。

CDC

12月8日,佳士得(Christie’s)的双年夜间拍卖会仅拍得650万英镑(含佣金),约合970万美元,而最低预估价为1270万英镑。45件作品中有19件流拍,比例达42%,包括两幅估价最高的作品——阿尔布雷特·丢勒(Albrecht Dürer)的学生汉斯·霍夫曼(Hans Hoffmann)1582年创作的水彩习作——丛林中的野兔,还有弗朗西斯科·瓜尔迪(Francesco Guardi)在18世纪70年代创作的描绘威尼斯圣乔治马焦雷岛美景的油画,这两幅画的最低估价分别是400万英镑和150万英镑。
遗憾的是,随着乌拉圭在当地时间周六(6月28日)被哥伦比亚淘汰出局,本届世界杯决赛将不再是巴西和乌拉圭之间的再次对话。如果巴西杀入7月13日的决赛,对手将可能是墨西哥、荷兰、哥斯达黎加、希腊、美国、比利时、阿根廷和瑞士中的一支(译注:1/8决赛中,墨西哥与希腊分别不敌荷兰与哥斯达黎加,憾别世界杯)。

Lawyers are inherently cautious but most have realised that technology is crucial to crunching through the vast amount of information they handle. Without it, certain document heavy processes, such as disclosure and compliance, would be nearly impossible.
6. You don’t just pass in front of the TV if i’m watching football, you better crawl on the floor.
中国企业家王兴(音)通过聊天软件“微信”(WeChat)与身在美国加州的姐姐和澳大利亚的叔叔保持联系。这款聊天软件让人得以一瞥中国网络公司怎样参与全球竞争。
2016年全国硕士研究生招生考试周日结束后不久,教育部即接到考研试题泄露的举报。

*剧情类最佳客串男演员:汉克?阿兹利亚(Hank Azaria),《清道夫》(Ray Donovan)
6. 减少饱和脂肪摄入可以帮助保持记忆力
《江南Style》击败《Call Me Maybe》成为最受热捧的流行歌曲,而《007:天降杀机》战胜了《普罗米修斯》成为最多人查询的电影。
10.被授予爵位的企鹅

Zheng Gang, a member of the CPPCC National Committee and deputy mayor of Danzhou city, Hainan province.
根据FlightAware网站为福布斯编制的数据显示,总部位于落基山脉以西的航空公司在节假日期间的航班晚点率最低。
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2016年英国《金融时报》欧洲商学院排行榜衡量商学院研究生课程的质量和广度。它基于相关商学院在英国《金融时报》每年发布的5项排行的表现:MBA、EMBA、管理硕士(MiM)和两项高管教育课程排行榜。只有参与所有这5项排名的商学院才有资格获得满分。
The other tweet was published on Inauguration Day, and Obama said, "It's been the honor of my life to serve you. You made me a better leader and a better man."

IMD participants praised the way their training pushed them out of their comfort zones and also the one-on-one coaching sessions tailored to their individual business situations. “It was an eye opener about what a good leader is,” commented one participant. “We learnt about ourselves first, what drives us and why, in order to manage others.”
The EU filed just 12 anti-dumping cases in 2015, two less than the year before.
一位来自美国佛罗里达州的少女引起了世人的惊叹,因为她长得酷肖迪士尼动画电影《冰雪奇缘》中的艾丽莎女王。
你是否一直有一个作家梦,但又不知道从何着手?那么你是否考虑过自助出版呢?感谢亚马逊,这种想法已经成为可能。亚马逊的Kindle Direct Publishing工具可以让你自行制作电子书,CreateSpace能够帮助制作纸质书籍,而ACX则是有声电子书的制作部门。我在出书时曾使用过这三款软件。
China’s handling of its state reserves of raw materials such as cotton and sugar will be a key factor shaping the direction of agricultural commodities in 2017, according to a major lender to agribusinesses.

The index fell from 50.4 in October to a six-month low of 50.0.
Sometimes bosses suck. But if your boss sucks all the time and takes advantage of your time, it's time to find a new job.
银行家们表示,音乐流媒体服务Spotify计划最早第四季度在纽约证券交易所(NYSE)直接上市其现有的非公开发行股票,而不走正式的IPO程序,而其他大型知名科技公司则被视为更有可能在2018年上市。
他的投篮许多次都是只打中篮筐的前沿儿。而一些三分投篮甚至投出了三不沾。许多本应是扣篮的球最终他只选择了上篮,当然了,这是相比在若干年前没有任何伤病的他而言的。而最残酷的是,其中一次投篮,科比甚至把球嵌在了篮筐与篮板之间。最终还是对方的球员把球拿了下来。

Apple (AAPL, Fortune 500) announced that it would put $30 billion of its cash toward share repurchases. The news made investors happy: The stock popped, and even a week later was up 12% relative to the S&P over that same 7-day period. The buybacks were part of a larger $130 billion capital return program that the company said would extend through 2015.
Overseas tourists continued to shun Beijing through 2013.
Martha Cherry took a cigarette out of her mouth, murmured, "I've been there," and resumed smoking. Marc was in shock (which, let's face it, is a pretty healthy response when you realize your own mother may or may not have had thoughts of murdering you while you bathed). He realized for the first time how desperate and lonely it could be to be a housewife. He realized then and there that he was upon a very good idea for a TV show. This conversation was the birth of Desperate Housewives.
That is up from a rise of 11.2 per cent in September.
需要注意的是,票房总收入和个人收入是两个不同的概念。在2012年6月到2013年6月期间(这是我们编制最新全球100名人榜所采用的时间段),唐尼的估计个人收入为7,500万美元,比强森多挣2,900万美元。而本文所讨论的数字是每位明星出演的电影在今年斩获的全球票房。
Supply-side structural reform: Cutting overcapacity, destocking, deleveraging, reducing costs and identifying growth areas

Upon downloading WeChat, users are prompted to register either using their QQ accounts or their cell phone numbers. The application then helps users populate their contact lists using existing entries in their cell phone address books. To communicate, users can upload any photo or video on their device, take new ones, or press a button to save a voice message that is transferred almost instantaneously. Voice messages are played back with short beeps at the end to imitate the feeling of instant connection, similar to a two-way radio.
As a result, 39 percent of the post-90s generation tries to avoid the negative effects of mobile phone use through measures like turning off app notifications, intentionally limiting the frequency of social media interactions and staying away from social media entirely in certain situations.
单词fare 联想记忆:

国有媒体报道称,中国总理李克强表示,2017年中国经济运行好于预期,并预计年度国内生产总值(GDP)增长率为6.9%左右。
Company: Eventbrite
The World Health Organization this year declared H1N1 a global epidemic. Fortunately, it is much less threatening than people previously believed, and newly introduced vaccines seem to have quelled lingering fears.
[.impre'sɑ:ri?u]
They have no reason to tank thanks to the pick swap with the Celtics, but they might be able to pick up some nice consolation draft prizes from contenders looking to make a move.