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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

老人扛一整袋零钱买房 售楼处铺满纸币

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 保温材料行业走向绿色是必然趋势 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

眼下,这位大摩新掌门或许意识到了来自零售经纪业务的微薄盈利还不够华尔街薪酬的血盆大口塞牙缝。预计戈尔曼会决定最终要向交易商高盛(Goldman Sachs)看齐。
来自民主党的奥巴马和共和党的罗姆尼在竞选活动中,都把重点放在如何修复萎靡不振的美国经济上。据估计,至少有1.2亿的美国选民将选举投票。

During the RoboCup 2500 contestants from 40 countries competed in 15 competitions with various types of computerized soccer robots, healthcare robots, rescue robots and dance robots.

It is the first time since 2001 that an athlete other than Mayweather Jnr or golfer Tiger Woods topped the earning league.
The consumer price index rose by 1.8 per cent year-on-year in January, from 1.6 per cent in December 2015. However, CPI continues to trail Beijing’s target of “around 3 per cent“.
outrage
对于那些已把自家公寓改造成B&B旅店的纽约人,围绕非法住宿的论战可能会趋于白热化。而在这一切之上,市长比尔·白思豪(Bill de Blasio)的十年保障性住房计划将初具规模;与此同时,本次奥尔巴尼会议(Albany)的立法将给租房者的钱包造成重负。随着我们迈向新的一年,这类改变游戏规则的因素也正在日益迫近。
repertoire
Around 280 million train tickets have been sold on 12306.cn since Jan 3, 2018 when tickets for the Spring Festival holiday started selling.
Now, Curry and the Golden State Warriors are right road of adding another accomplishment.
Benchmark oil prices dropped below $40 a barrel last week, the lowest level in six years, darkening investor sentiment towards commodity-linked companies and exporting countries including Brazil, Russia and South Africa.

"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

Jude Webber
In the three years after the death of Steve Jobs, Mr Cook, 54, has held his nerve through attacks from activist investors and a loss of faith among some that Apple could succeed without its late founder. This year has seen Apple’s chief step out of the shadows of his predecessor and imprint the company with his own set of values and priorities: bringing in fresh blood, changing how it manages its cash pile, opening Apple up to greater collaboration and focusing more on social issues.

'It is absolutely perfect, absolutely pure externally and internally. It is almost a dream,' said Jean-Marc Lunel, senior international specialist of Christie's jewellery department.
['disk?:s,dis'k?:s]
图表一显示的是上世纪70年代以来新兴市场银行、汇率及债务违约危机的发生次数——对照名义联邦基金利率。克普克以此为据,试图证明高位且不断上升的利率通常在新兴市场危机爆发周期之前出现。
福布斯全球2000强是一个囊括全球最大最具有实力的上市公司的综合榜单,我们的衡量指标为营收、利润、资产和市场价值。

Common industries for college startups include catering, agriculture, IT, transportation, education and culture. 13.8% of the entrepreneurs were interested in hospitality and catering, while 13.7% chose agriculture, the report said.
"Some geniuses in the internet industry created miracles, but that does not tell the whole story," said Chen. "Business has its own rules. Before you start up, you have to know how to produce products, how to sell them, how to manage a company. Those lessons you cannot expect a fresh graduate to know."
['?nim'pl?im?nt]
如今,蓬勃发展的互联网经济在支撑我国信息技术(IT)行业财富增长方面正发挥着越来越重要的作用。
经济学家原本还预计,今年1至10月份全国固定资产投资(不含农户)增长速度会与1至9月份的增长速度8.2%持平。

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

据行业估计,到2020年,我国年度票房有望达到1000亿元人民币。
His strategic shift away from corporate strategy was in spite of the fact that his own school had deterred him from making a career in education, even though he had worked as a private tutor.

CDC

“我们从斯雷布雷尼察大屠杀事件了解了荷兰和荷兰人是什么样的,”埃尔多安说起现代荷兰历史上最可耻的一幕,“我们从他们屠杀那里的8000名波斯尼亚人就知道,他们品德败坏到何等地步。”
指数:96.6

The movie takes place a year after the events of Finding Nemo and follows the journey of Dory to find her parents. Dory is helped by Nemo and Marlin in this epic adventure along the coast of California. You will also see some new characters introduced in the film.
尽管这笔节省下来的钱目前看来相当可观,但其实远不够填补随之而来的不断升高的患病率所增加的社会负担的窟窿。
In an interview with Yicai magazine last week, the chairman of China Construction Bank pointed to the rising tide of non-performing loans as the biggest problem confronting China’s banks.
马纳尔·阿尔-谢里夫最有名的,是挑战她的祖国压制女性的法律和习俗。

“Where ETFs have grown — in the US and Europe — there is a big ecosystem of financial advisers,” he says. “You need a more advisory model. But until you see people paying for advice rather than paying for commissions, it is hard to see when it will take off.”
This is not to take anything away from Tesla, which has demonstrated that it can create and manufacture a complex and sophisticated product with demonstrated customer appeal. But its own internal forecasts, as well as the swelling of its share price, are based on the expectation that the future will unspool in an orderly fashion identical to the recent past. That’s a dangerous assumption to make – for several reasons:
Why the difference? It wasn’t because of a difference in the available information. As Koudijs and Voth point out, everybody in Dutch financial circles knew and understood the magnitude of what had happened. Nor was it because the Seppenwolde lenders had to rebuild their own finances. Within weeks of the default, the lenders knew they hadn’t lost any money.
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.

Common areas include two living rooms, both with walls of glass opening to a patio and an in-ground pool. Ceilings rise as high as 28 feet; doors throughout are Spanish cedar. Among the stainless-steel kitchen appliances are a Fisher & Paykel range and two Sub-Zero refrigerators, as well as steel cabinets and sinks. A breakfast bar separates the kitchen from the dining area, which also opens to the patio and pool.
但是又一次,科比仍然表示自己很健康,自己的投篮很好,之后就将话题转向了关于他的队友和球队赛程上面。
The gold market may be obsessed about the dollar and prospect of a rise in US interest rates. But there’s another factor looming on the horizon: a fall in gold mine supply.
Hope all your New Year dreams come true!愿你所有的新年想都成真!
与此同时,国内互联网用户已经养成了手机支付的习惯,去年用手机支付的用户数量飙升到了4.69亿,同比前一年增长了31.2%。

[l?un]
A teenage student in Southwest China's Chongqing Municipality has been sentenced to one year in jail after trying to poison fellow students for being too noisy in class, local media reported last Wednesday.
社交网络内容将出现在谷歌搜索结果页面
n. 保守派(党),
6. The parties are epic – if you have the time

Soyabeans which are trading above $10 a bushel are expected to remain strong, while dairy prices are also expected to rise during 2017 as demand steadily increases, said the bank.
荷兰危机牵涉到成熟的金融专业人士,那些惯于分析金融和经济趋势的人们。但是,他们过于看重个人经验。
Plum Alley:
单词criminal 联想记忆:

据信,宝能借入了大笔资金来购买万科的股票。现在,它已是万科最大的股东,持股比例为25%。
雪莉·巴赛为007系列电影演唱了两首名曲,这是其中之一。从某种程度上来说,007系列电影一直讲述的是心愿达成的故事。观众在享受剧情的同时,耳旁听着最棒的歌手用强有力的声音唱着关于贪欲的歌词,真是恰到好处。所以无论你对这部电影抱有何种看法(尽管这不是007系列最佳电影之一),巴赛拥有上好的素材,创作了让人眼前一亮的歌曲。
总部位于广东的房地产开发企业碧桂园集团现年35岁的女继承人杨惠妍以485亿元的身家紧随其后。
Obama scored narrow wins in Ohio, Wisconsin, Iowa, Pennsylvania and New Hampshire - all states that Romney had contested - while the only swing state captured by Romney was North Carolina, according to network projections。
CONTACT: Kathy Michalove, Seaboard Properties, (860) 535-8364; seaboardpropertiesre.com
These brands are close to their domestic markets, helping them to gain market share at the expense of global brands, and they are also winning share in new regions, according to BrandZ.

埃伦?约翰逊?瑟利夫2005年成为非洲第一位民主选举产生的女总统。挪威诺贝尔和平奖委员会赞扬她打破种族和宗教界限,帮助结束了利比利亚的内战。
一个更大的侧影
[f?'siliteit]

Ronaldo's monster pay-packet was the result of his eye-watering pound 38.5 million-a-year salary with Spanish giants Real Madrid and endorsement deals with the likes of Nike, watchmaker Tag Heuer and nutrition supplements group Herbalife - themselves worth pound 22 million.
You'd love to know the balance of forces that shape and move your ponytail, right? That's why Joseph Keller, Raymond Goldstein, Patrick Warren and Robin Ball received this igNOMINIOUS prize!
在这个力求避免任何歧视的态度的年代,年轻一代开始不满邦德的大男子主义态度和不健康的生活方式,因此赫洛维兹引入了一系列会指出邦德错误的新人物。
国家统计局高级统计师绳国庆将这一下滑主要归因于食品价格下降了1.4%,这是15年来的首次下降。
社交网络平台,包括微博和手机应用微信,被证明是网红扩大交流的最好工具,使其可以创造出一种囊括广告、电子商务和粉丝的行业。