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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

欧司朗智能LED灯泡Lightify 加入谷歌Nest家居平台

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 楼市严打 华润链家等房企被罚163万元 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

2. Organize
此器于2012年由考古学家发掘出土,此后一直保存在仪征博物馆,未向对外展示。

在美国监管机构担心交易所交易基金(ETF)市场增速可能太快的同时,他们在亚洲的同行以及资产管理公司和分销商却忙着考虑还有什么办法可以提高投资者的兴趣。

Employers have stepped up their hiring recently, adding 171,000 jobs in October and an average of 157,000 a month so far this year. That's a better pace than last year and the strongest job growth since 2006, Labor Department data show.[qh]
Gisele, 37, came in second place, having earned $17.5 million, marking the first year she has not headed up the line-up since 2002.
Against: To some extent it's divided American audiences, perhaps damaging its hopes of winning best film.
The theory that exercise boosts your intelligence might have some basis in fact according to a study conducted at Georgia Tech. Even if you don't like lifting weights, and the inside of a gym makes you want to run for the nearest doughnut shop, it might take just 20 minutes to enhance your memory, according to the 2014 study. Researchers asked participants to work out for 20 minutes in an intense manner and found that just 20 minutes of activity could help improve "episodic memory" by as much as 10% in young adults.
单词reform 联想记忆:
受此启发,研究者和科学家们都致力于研发体积小却意义重大的科技成果。
智能水瓶
它还体现在萝塞拉·亚尔迪尼(Rossella Jardini)为莫斯奇诺(Moschino)设计的2009年春夏系列的蝴蝶结和宽松裙子上以及以玛丽·匡特(Mary Quant)为灵感的2013年春季系列中。

"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

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愿新春美景与欢乐常伴随你!
其关于朋友间爱情、事业、友谊的主题仍然与今天的年轻人息息相关。
该调查发现,211和985重点建设高校毕业生的薪酬水平大幅度领先普通高校毕业生。
与此同时,有一首非常有意思的歌曲来自我们的读者Libby Russell,是她为所有世界杯期间的足球寡妇所作。非常感谢Libby的分享,太棒了!

3. 丹·韦斯(Dan Weiss),《14》,Pi Recordings。《14》的内容如此丰富,整张专辑的作曲由鼓手丹·韦斯一手包办:细节丰富的室内乐,前卫的啸叫,新音乐无词人声与北印度音乐。相比这个宏大的音乐参照系,更令人印象深刻的是,韦斯集结了12名同行乐手,把所有音乐元素融汇为流畅的整体。
As the younger generation begins to frown on Bond’s chauvinistic attitudes and unhealthy lifestyle in the era of political correctness, Horowitz has introduced a cast of new characters who will point out the error of his ways.
这项预计于2016年1月1日生效的修正案,包含一个子条款:为生二孩的夫妻延长生育假和其它福利。这些政策有望提高一些夫妻生二孩的意愿。然而,由于抚养两个孩子的成本会更高,并且女性生二胎还要担心公司老板会有看法,所以许多夫妇都表示不愿意再生。
在就业增长前景最好的州当中,西部各州占据了主导地位。在排名前十位的州当中,只有两个州位于密西西比河以东,分别是佛罗里达州和乔治亚州。其他排名前五位的州是科罗拉多州(预计年度就业增长2.6%)、北达科他州(2.5%)和佛罗里达州(2.5%)。
神经系统科学家发现了小脑的一项全新功能。长期以来人们一直认为小脑基本上与意识直觉等活动无关,它的主要作用是协调站立、呼吸等基本的身体活动,然而,实际上小脑在影响人类行为上也发挥着重要作用。

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

Good luck and great success in the coming New Year.
n. 联合,结合,交往,协会,社团,联想

CDC

Given a choice, Chinese university graduates prefer to find employment rather than start a company.
中国香港——也许香港的标志性景观是一艘驶入画面的仿古船,其背景正是这座城市举世闻名的天际线,但《孤独星球》选中此地却是因为距维多利亚港数英里之外的自然遗产。

This marks the first time that Google has topped the list since 2011.
Russian President Vladimir Putin took a 10% pay cut last year, as his country sank into a deep recession. But that was after his salary more than doubled in April 2014, to roughly 9.7 million rubles.
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Large technology companies were criticised throughout 2017 for becoming too powerful, using their size to dominate markets and not paying enough attention to how the tools they create can be used for ill.

Comic skit “You’ve Got Trouble”(Sun Tao, Qin Hailu etc)
达洛伊西奥也尽力维持着生活原本的样子。他的女友还是之前的那个女友。而且尽管他不再去学校了──坐在教室里就没空监管Summly的研发──他还是照常去找老师拿作业。他十分庆幸他的朋友不了解他企业家的那一面。而当我采访他的时候,他正准备和一群高中死党去希腊玩上一周。
现在对于宣传单张的内容还没有详细的介绍,但之前投放的传单都包含谴责北韩统治者家族的言论。
To be brief, people with type C personalities are perfectionists, consistent and will never break the rules. Unlike their "sister" type A; type C personalities tend to take their time with the details and often check and recheck their work for accuracy. They tend to be deep thinkers and like to know every detail in regards to their work and life.

收集了一些明星们挑选南瓜的相片。看看这些照片,然后告诉我们:你准备好庆祝周三的万圣节了吗
该项目的另一个好处在于,它鼓励了职业灵活性,让年轻人对曲折的职业道路有所准备,而后者可能在现代职场中是必不可少的。
capacity
确实有人有近乎完美的记性,可以从过去经历中检索出大量信息。只是,即使很多人认为这样的记忆已经很完美,他们有的时候也不能准确清晰地记起一些特定的细节。虽然真正完美的记忆并不存在,但你还是可以拥有近乎完美的记忆力,超越这些记忆达人,去抵抗岁月给你带来的疾病和健忘。
The drama in Nafta

“谁来支付由此产生的成本呢?”纽约合作公寓和共管公寓委员会(Council of New York Cooperatives and Condominiums)的主席马克·J·卢森堡(Marc J. Luxemburg)表示,“这会给许多楼盘带来真真切切的成本。”
2016年,担忧和愤怒主导了英国和美国这两个最重要、稳定、悠久的民主政体的政治情绪。
以下十条就是你找工作时可能露出的“马脚”
最流行的整形手术包括双眼皮手术——通过减少上眼睑多余的皮肤来使双眼看起来更大,抽脂手术——运用高频声波来减肥,以及鼻子整形手术。
2005年初,斯通和其联合创始人爱丽莎卡玛赫特和朱瑞德斯贾丁斯发现,使用博客的女性规模庞大,但主流媒体却很少会引用她们的文章。于是,三人决定召开一次草根会议,并吸引了谷歌和雅虎(Yahoo)等赞助商。门票很快销售一空,不久,她们便成立了BlogHer.com。这个博客发布平台把撰写博客变成了许多女性可以用来赚钱的一项业务——2009年至2012年期间,这家公司向5,000名博主支付了超过2,500万美元。目前,这个平台的用户已经超过9,200万人。

2006年,哈茨与现任丈夫凯文共同创办了在线票务平台Eventbrite。自成立以来,这家公司先后从红杉资本(Sequoia Capital)和老虎全球基金(Tiger Global Management)等公司获得了总计1.4亿美元的投资。今年9月,它的票务销售总额达到了20亿美元。创业让哈茨不得不在与人沟通时运用坦率、且具有合作性的对话方式。她说:“我必须学会如何寻求帮助。所有人都认为创业是勇敢的举动,但我认为,更需要勇气的事情是,把自己摆到众人面前,同时努力达成协作。”
Its brand value has increased by 22 per cent to $19bn and it has climbed 20 places up the ranking to number 50.
While a way must be found to aggregate those views, it will always be defective.
Wonder Woman

Mr Cook’s decision to expand its cash return programme of dividends and share buybacks helped to defuse the situation with the activists, returning $94bn to date. In the end, he stared down the challenge just long enough for the next wave of iPhone growth to hit and new products to emerge from Sir Jonathan Ive’s workshop.
1. "Game of Thrones" (5.9 million)
The TV version premiered on Jan 30 and starred two popular actresses, Yang Mi and Dilraba. It is about a fairy’s romance with a god in their three different lives.
de去掉,but。去掉but?导演Z(平静):你可以上台了。女演员F:but我还没准备好呢?Z(有点儿烦):哪那么多事儿呀,快点儿!F:but我这可是第一次!Z(强忍):谁没有第一次呀,快!F:but…,Z(已经怒了):哪XX那么多but呀,全都给我de掉,再不上去我就X人了!!!
The Journey of Flower
We will speed up the reform of SOEs and state capital.

在桑迪飓风登陆新泽西Mantoloking之后的早晨,洪水包围了Mantoloking大桥附件的房屋。
你有D型人格特征吗?有测试表明,拥有这种鲜为人知的性格的人非常善于隐藏情感,甚至他们自己都没有意识到自己很孤单、很焦虑。
Wishing you all the blessings of a beautiful New Year season.愿你拥有新年所有美好的祝福。

WHAT: A riverfront contemporary with three bedrooms and three and a half bathrooms
1 February
Courtney Weaver
"过去,大熊猫很难进行圈养,但是经过成都熊猫基地和世界各地许多动物园的通力合作,人类已经攻克了这个难题。目前世界上已经有了将近400只人工大熊猫。" 马文如是说。
盖尔 加朵