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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

杭州正式发布住房租赁市场试点方案

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 房企涌向一二线遭炮轰 包广林:三四线也要房地产 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Lufax is the largest, a subsidiary of China’s Ping An Insurance, which is Lufax’s largest shareholder.
10月中国进口同比下降18.8%,降幅较9月的20.4%略有改善。石油和其他大宗商品价格大幅走低也帮助压低了进口总值。

3、Negativity

Trump’s trade war with China
节目28 歌曲《留声2012》①《滴答》(表演者:侃侃、李晨)②《我的歌声里》(表演者:曲婉婷、杜淳)
8.软件工程师
predecessor
We first see the hair of Anna Morales (Jessica Chastain) during the opening credits of “A Most Violent Year.” She’s at her makeup mirror.
spread
10.专注工作,调节平衡
That feeling of success may have provided a sort of identity in itself.

"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

这是一次及时的预警。他写道,自己的研究结果“表明,随着美联储继续实施利率正常化,未来几年新兴市场爆发危机的风险将加剧。”
李亦表示:“贫困阻碍了网民数量的进一步增加,使得网民数量占全部人口的比例只在50%左右。”

去年电影市场的一个亮点是,共有七部高质量的国产影片在票房前10名的榜单中。其中就包括真人与动画结合的《捉妖记》、以及基于经典古代故事的3D动画电影《大圣归来》。
《少女日记》,导演玛丽尔·海勒。
Change is also under way at Bain & Company, which announced in November that Manny Maceda will become its global leader in March, the first of Asian heritage, and taking the reins of the Boston-based consultancy from Bob Bechek. Experts say Mr Maceda could be instrumental in helping the firm carve out new areas of expertise and edge away from its reputation as a generalist provider.
setting

杨金秀(Olive Yang)
在过去的二十年里,几起校园中毒事件引发了群众对学生心理发展及帮助的争论和关注。
That was in line with last month’s manufacturing PMIs, which showed an uptick in sector activity,
The Meyerowitz Stories
Finance is one of top school Edhec’s core strengths, both in terms of teaching and research. The school in 2001 established the Edhec-Risk Institute to produce and distribute research on areas such as asset and risk management.

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

一些智能的床会让你有更好的睡眠质量和睡眠姿势,但也会让你变成一个检查配偶是否出轨的私家侦探。除了检测这个床垫是否舒适,它会在有其他人占用你的床的时候提醒你。
Xi'an Xianyang International Airport outshone all other airports in China, with a punctuality rate of 82.3%.

CDC

去年,伊斯兰国激进分子在土耳其驻摩苏尔领事馆扣押了49名土耳其人质,三个多月后才释放他们。人质中包括外交官、军人和儿童。
胰腺产生胰岛素,如果你的胰腺没有这样做,你需要人工注射胰岛素。因此,糖尿病患者必须进行的日常事例是检查他们的血糖,并且在必要时注射胰岛素。

包括圣诞购物季在内,第四季度的电脑出货量共计7190万台。IDC方面表示,这是自IDC公司开始追踪该数据以来最大的降幅。
Right now, she's focusing on her modeling career, but also hopes to branch out into acting.
ceremony
Companies do have black lists. It's not written down anywhere but it's a list of people they'd be happy to get rid of if the opportunity arises. If you feel invisible, if you're getting bad assignments, if your boss is ignoring you, or if they move your office, you're probably on it.

天生脑瘫的余秀华原本过着平静的乡村生活。现在,她在文坛引起了轰动,她描写情欲的生动诗歌“有明显的血污”。
Purchase products like magazine racks, shelves, and desk organizers that will keep your supplies and resources in order and close-at-hand. We love the File File, $24.95, at CB2.com (pictured above).
SplashData公司称,在娱乐网站上使用和邮箱及社交网站相同的密码尤其不安全。
[iks'tend]

在实验中,参与者们被要求回忆一些他们在实验开始的时候看到的图片,其中,一半参与者在回忆之前进行了举重训练,另一半参与者没有进行这样的高强度活动。他们发现,参与了举重训练的人在记忆能力上有所提高。这项研究实现了运动研究上的独辟蹊径,其他研究的研究对象多是对有氧运动本身,研究时间跨度长达数,但是这项研究的研究对象却是人类记忆,在研究时也仅仅是要求参与者们花一点时间举重而已。研究人员证明了其实提升记忆力并不需要数个小时的锻炼。下次再有谁让你去举重或者去健身馆锻炼的话,你大概会想感谢他一番的吧?
"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.
Along with her friend Chloe, Max is out to uncover the truth behind the mysterious disappearance of fellow student Rachel Amber. With an indie-film feel and an eclectic soundtrack, Life Is Strange stands out from other games by blending the angst of being a teenage girl today with life-and-death situations, and the ability to rewind time. While this gameplay mechanic has been used in many games before, this take on time manipulation feels as unique as the American characters the French developer has created.
[plein]
各大资产管理公司的专家们表示,评估亚洲ETF潜力的难题在于日本市场在地区所占比重过大,以及日本央行(Bank of Japan)扮演的角色过大。日本央行每年购买6万亿日元(合540亿美元)的ETF,这扭曲了市场。

每平方英尺单价:310美元(每平方米约合人民币2.1万元)
adj. 连续的,继续的,连绵不断的
有些人会充分运用科技的力量:
The 62 universities account for 12.4% of the list. The only country with a larger number of universities listed is the US, which accounts for 27.8%.
美国谷歌搜索2017排名前十

“…started swearing during the interview.”
她声名在外,母亲不得不为她雇了专人保镖团队,全天24小时保护她的安全。
Here's a look into social media's crystal ball for 2014. Will Snapchat catch fire? Will those annoying Promoted Tweets keep invading your Twitter stream? Will your boss finally learn to tweet? These five trends are poised to shake up the industry and the way we use social media in 2014:
桑尼伯恩和他的父母以及11岁的妹妹朱莉娅住在佛蒙特州的布里斯托尔,他正在寻求民主党的提名。

“When I started in this business, Brooklyn was the alternative. Now it is a choice,” said Diane M. Ramirez, the chief executive of Halstead Property. “I see Queens becoming that way. The Bronx is not that far down the line.”
adj. 故意的,有意的;打算中的 n. 已订婚者 v.
凯特·温斯莱特(Kate Winslet)是另一位将其最佳女演员奖杯置于洗手间的英国演员。她因在2008年一部改编自本哈德·施林克(Bernhard Schlink)的小说《生死朗读》(The Reader)的同名影片中扮演一位集中营的看守而获此殊荣。
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Emissions have been falling gradually in recent years in most of the developed countries, in part because of economic weakness but also because of strengthening climate policies. Emissions in the 28-nation European Union fell 1.8 percent in 2013, despite increases in coal consumption in a few countries, including Germany and Poland. Emissions decreased sharply in Britain, Italy and Spain.
BuzzFeed News将“假新闻”定义为已经被验证“100%是假的”,并且列出了96家喜欢传播这些虚假信息的网站。

Vegetable price growth more than doubled to 13 per cent year on year, helping push food inflation to 3 per cent, up from 2.7 per cent in September.
As a result, business investment in key areas such as equipment has been historically weak for a U.S. recovery. A slowly improving jobs picture and rising household wealth could spark a virtuous cycle of stronger consumer spending, increased business confidence and rising investment. If it doesn't, the year could be another letdown.
给你特别的祝福,愿新年带给你无边的幸福、如意。

Here's how the pay of prime ministers and presidents of the world's biggest economies stacks up, according to official data and converted into US dollars at market rates.
社会科学家们分析了来自大西洋两岸的数据,发现了一些惊人的事情:在社区内,引起白人不满,并令他们支持反移民政策的,并不是多样化民族或种族的人数,而是变化的速度。
摆放一个小书架,用来放自己的杂志或报纸,这一方面有利于节省空间,另一方面可以让你能够很快找到自己想要的东西。
3. Tablets meet viruses.
At the same time, entries for gout jumped by just over a third – a disease associated with "ease and comfort" in Victorian London, now more likely to be linked with deprivation and lack of work.