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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

四川凉山州家居市场质量环保抽检多为合格

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 LED企业营销渠道论:看大咖们如何出招 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

IFAD的政策顾问、这篇报告的作者佩德罗·德·瓦斯孔塞卢斯称:“这确实是一个全球性的现象,由于缺乏机会,人们不得不背井离乡,出门打工养活家人。”
“An employee sent his boss a text message to say he was leaving.”

Plenty of dark clouds loom over the U.S. job market -- particularly the potential double-punch of tax increases and spending cuts known as the fiscal cliff.[qh]

Copestake said the return of Tokyo to top of the list came as no great surprise as the Japanese capital had steep real estate costs and rents, as well as high wages fuelling prices.
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。
与此同时,达洛伊西奥开始环游世界,到处参加会议,并结识其他潜在的投资人。他给每一位结识的人都留下极深的印象。温布尔顿国王学院中学(King’s College School)的校长安德鲁?霍尔斯(Andrew Halls)评价道,他成熟得可怕,他在各种状况下仍保持着清晰的思维,这令我这个54岁的人都觉得惊讶。
坚持一个中国的政策,这是中美关系的政治基础,不是风云变幻能够动摇的,也动摇不得。有了这样一个政治基础,中美合作的前景是广阔的。
Deepening reform in major sectors and key links
Alice Schwarzer
今年的全球女性权势榜中,有9位国家元首,她们治理的国家总GDP达到了11.8万亿美元——其中包括排名第一的权势女性、德国总理安吉拉·默克尔。还有24位公司的首席执行官,她们掌管的公司年营收总计8,930亿美元,另外16位女性创立了自己的公司,包括三位新晋亿万富豪中的两位:托里·伯奇和Spanx公司的萨拉·布雷克里。说起来,今年的榜单上有14位亿万富豪,她们的身家超过了820亿美元。
A partnership with IBM to sell iPads and iPhones to big corporate customers is just one example of how Apple is looking beyond its own walls more under Mr Cook, something Jobs had resisted.

"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

最新名单显示香港大学排名第三,澳门大学排名第六。
Zheng Gang, a member of the CPPCC National Committee and deputy mayor of Danzhou city, Hainan province.

吊床架组装方便,可以架在桨板、橡皮船和皮筏上。
举例来说,新浪微博就一直提供推特所不具备的一些功能,尤其是评论功能,让众多用户得以在别人发表的微博下发表自己的见解。拥有逾7亿用户的腾讯QQ即时信息服务也有众多附加功能,比如可以让用户改换形象的“皮肤”,同时QQ还是腾讯为其他产品和服务做广告的渠道。新浪拒绝置评。
《那年花开月正圆》
But the 3D version of the mascot image failed to dodge bullets, as critical netizens sneered at this version: "Reminds me of green and red lights." "Lost all the flair of that ink painting" "What are those balls under its ears?" "It is so ugly that I just want to cry."

The area is close to the city centre and the demolition contractors had to make sure that when they brought down the buildings they did not damage a light rail viaduct nearby or a shopping mall and electricity sub-station.
Striking a balance may take a while, but working toward this list as a goal for starting your company will make the difference. How an owner feels about progress and how quickly a business can be up and running — and feeding that bottom line — will swiftly feel the impact.
Despite the seemingly extensive target vetting on May 7 the Chinese embassy in Belgrade was struck by five Joint Directed Attack Munition satellite-guided bombs delivered by U.S. Air Force B-2 Spirit bombers. Three Chinese journalists—Shao Yunhuan of Xinhua and Xu Xinghu and his wife Zhu Ying of the Guangming Daily—were killed in the attack. Twenty other Chinese nationals were injured five seriously.
完成所有的事,甚至更多
10. China watchers inthe United States will continue to postulate China’s declining growth rate inthe face of evidence that it is stable at over 7%. China will grow fasterin 2014 than in 2013.

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

We will promote the liberalization and facilitation of international trade and investment.
['breik.θru:]

CDC

Starting a business can wreak havoc on the owner’s personal life. While all the above tips are necessary for success, taking care of yourself mentally and physically is also imperative. Exercise, sleep and diet play a central role in ensuring you implement these policies successfully. All of them drive attitude, motivation and relationships.
n. 路费,食物

President Obama leads the pack. On top of the $400,000 a year, he gets a tax-free expense account worth $50,000. The salary was last raised by Congress in 2001.
本周一,研究小组表示,根据遗骨可以看出,理查三世患有严重的脊柱侧弯,或者说脊柱弯曲。这会让他十分痛苦,还会导致右肩比左肩高,但莎士比亚的《理查三世》中描述的枯萎的手臂却无从证实。
outstanding
The list presents an annual snapshot of the ever-changing global business landscape. The U.S. holds onto its crown as the country with the most Global 2000 companies: 564. Japan trails the U.S. with 225 companies in aggregate, despite losing the most members (26) this year.

中国一群现代汽车经销商要求韩国现代汽车赔偿8-9亿元(1.2-1.35亿美元),称现代汽车削减了向他们出口的车型,导致经销商亏损严重。
单词circulate 联想记忆:
Company: BooginHead
还是说回TextPride吧。雷和欧布莱恩发现,用户很喜欢各种品牌授权的表情符号,他们相信广告主肯定希望非常便捷地通过一家供应商来进入多种短信应用。但他们也明白,这充其量只能占到这项业务的一半份额。对运动队这类大名鼎鼎的品牌来说,用户是愿意为这些贴纸埋单的。但那些不知名的品牌就需要自己掏钱来挤进这个圈子了。

['?:d?ri?]
Splashdata's list shows that many people use easily guessable passwords. Some other passwords in the Top Ten include "qwerty," "abc123," "111111," and "iloveyou."
谁都有不如意的时候,但是佳士得拍卖会上令人失望的情景已经不是第一次出现。今年7月的18世纪前绘画大师作品拍卖会仅拍得1900万英镑,而当时的最低预估价是3150万英镑。
这让11月份的贸易顺差达到446.1亿美元,比10月份减少约44.5亿美元,低于预期。
[spu:n]

A型与B型人格理论指出,A型人格的人外向、野心勃勃、严谨、地位意识强、敏感、不耐烦、焦虑、积极主动和注重时间管理。
大多数观察家认为去年五月首飞的单过道C919就是图中这架飞机。尽管这是一项突破性进展,但它并不能完全代表中国航空工业的发展。其他两个例子更有说服力。
tox毒,ic-有毒的
James is proof of a trend we've seen, from Tim Duncan to Manu Ginobili to Vince Carter. Conditioning, health science and nutrition are paving the way for athletes to remain in their prime, and then serviceable, for way longer than before. James is realistically still going to be the best player on his team when he's 36, and that's straight up bonkers.
《警察故事》(Babylon),Sundance,周四播出。詹姆斯·内斯比特(Jame Nesbitt)最近在《失踪》(The Missing)中出演了一个孩子失踪多年、备受折磨的父亲,他在这部剧中饰演的是完全不同的角色:一个斤斤计较的老派警官,雇用一个美国公关专家(布里特·马灵[Brit Marling]饰),来改善苏格兰场的形象。这部讽刺剧集由《贫民窟的百万富翁》(Slumdog Millionaire)的导演丹尼·博伊尔(Danny Boyle)执导,有点像阿尔曼多·伊安努奇(Armando Iannucci)的政治喜剧片《灵通人士》(In the Loop)。

The latest list showed that University of Hong Kong ranked third and University of Macao seized the sixth place.
There are two divergent views of what is happening to the oil price ithin the industry and among serious investors. 2016 may help us to see which is correct.
It's been confirmed that Hu Ge who took the leading role of "Li Xiaoyao" will join the cast of the film, while the name of female lead has not yet been revealed.
这个触动人心的成长故事完美捕捉了一个人从青少年初长为成年人的甜蜜又苦涩的阶段。

无人驾驶汽车是当下炒作得最火的行业,这类汽车的倡导者已成为冗词赘语的世界级领军人物。埃隆?马斯克(Elon Musk)自称“要在一个安全系数超出人工驾驶数量级倍数的一体化平台上专注于全自动驾驶的实现”。(就是说特斯拉肯定能防止车祸的发生)。
A series of explosions on Aug. 12 that originated in a warehouse illegally storing hazardous chemicals in the port city of Tianjin killed 173 people, injured hundreds and left behind post-apocalyptic scenes of destruction. The blasts raised serious questions about the lax enforcement of safety regulations during China's rapid industrialization.
The diplomatic row began when Ankara’s foreign minister was denied entry to the Netherlands on Saturday for a campaign rally in favour of Mr Erdogan’s constitutional reforms. Armed Dutch police also intercepted another Turkish minister, Fatma Betul Sayan Kaya, on her way to the rally in Rotterdam and escorted her back to the German border.
Below are a number of statements that people often use to describe themselves.
“有些人说自己去吃午饭了,然后一去不回。”
3. Your boss received your résumé from a contact of a contact。

['si:nj?]
The prince said authorities could recover as much as $100 billion in settlements.
The study relied on a dataset of hundreds of millions of secret answers and millions of account recovery requests.

6. You don’t just pass in front of the TV if i’m watching football, you better crawl on the floor.
马克斯将与她的朋友克洛伊一起,揭开她的同学雷切尔o安布尔神秘失踪背后的真相。游戏具有电影的体验感,配有不拘一格的原声,将当下年轻女孩的焦虑与生死攸关的情境结合了起来,再加上了时光倒流的能力,这一切使得这款游戏脱颖而出。尽管该作品中采用的机制在其他游戏中曾经用过,但由法国开发商制作的美国风格游戏,还是让这种定时操作有耳目一新的感觉。
Cheng继续说道:“一旦你找到适合自身需求的列表,只需轻按该列表即可看到推荐店铺的位置,然后通过左右滑动来查看更多选项,点击"阅读更多"或者屏幕底部的箭头可以选择地点和获得更多细节。”
A historically jittery commodity, crude oil has seen calm prices for three years, and one big factor has been helping smooth the wrinkles: U.S. shale oil.
Ellen DeGeneres: