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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

上半年北京购房需求得到部分释放 房价总体基本平稳

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 欧派“北漂”业绩破5亿 惊呆同行引深度思考 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

寻找工作的雇员并不希望将这些蛛丝马迹被他们的经理发现,凯说,但是他们确实被发现了。
卡尔森一向热衷于歌唱事业和歌剧事业,因而这样的工作对她再合适不过了。

到现在第22部007系列片已经登场,邦女郎角色变迁,不过有一点我们可以肯定,无论007电影怎么拍,邦女郎总会漂亮性感、聪明高贵而且越来越有内涵。这是007电影过去、现在乃

The top obsession of 2010 was the much-anticipated iPhone, followed by actress Lindsay Lohan, the iPad, and the television shows "Glee" and "Jersey Shore".
Zhang Jingxiu, executive director of Beijing-based employment consultancy Newjincin Research Institute, said he didn't monitor the significant decrease of students' willingness to start businesses, but he does admit the desire to found startups among students on campus is low.
本次问卷调查的主要对象为中国高校2017年应届毕业生,包括大专、本科、硕士及博士等,智联招聘最终收回有效样本93420份。
Gender diversity is increasing among graduates working in the financial industry, according to data collected for the 2017 edition of the Financial Times ranking of masters in finance programmes.
但随着美国接近实现充分就业,随着通胀向目标水平趋近,“你可以看到收紧政策是有道理的,”他说,“不需要很多就足以改变整个平衡”。
美国的麻省理工斯隆管理学院(MIT Sloan School of Management)位居第五,从而阻止了法国商学院囊括前五名。
制度也可能失效。
protein

"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

There are a wide range of low-cost flights to Russia and transportation in the country is also easy with the Trans-Siberian Railway.
《请以你的名字呼唤我》

《三生三世十里桃花》
3.The End of the One-Child Policy
纽约的一家餐馆正在尝试制作市面上最“腐败”的披萨,这种披萨表面覆盖了黄金薄片、鹅肝和松露。
我是否在担忧未来?担忧某些并未发生的事情会导致压力和焦虑。专注于当下,了解到这就是目前所存在的一切。

在开放课程排行榜中,基于对参加课程高管的调查,瑞士洛桑国际管理发展学院在最重要的10项指标上得分特别高。该校在3项指标上排第一,在其他7项指标上都排前五。
轮滑看起来有点像常规的单排轮滑鞋,不过轮滑的轮非常大,尺寸大小跟自行车车轮差不多,看起来像是溜冰鞋,滑雪板和自行车的合体。最近一家名字叫作战车溜冰的公司声称,他们已经有了一些独特的想法——战车轮滑。根据该公司所说,这种轮滑是"革命性的新轮滑产品"。这是一场改革吗?也许是吧,他们至少在改进设计。这是发明吗?不是的。第一双轮滑早在142年前就已存在 。
Video of the year: "Tornado," Little Big Town
In contrast to Hunter’s, her Piano co-star Anna Paquin’s Oscar seems to have no fixed abode, flitting between her sock drawer and on the floor next to her boots.
Company: Binary Group

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

温莎王朝的非官方座右铭“永不抱怨,永不解释”到底可信不可信?
de加强语义,sign标记,er表示人-做标记的人-设计者

CDC

年龄:31岁
苹果越来越需要有人去抵挡和应对攻击者以及监管者(苹果在欧洲遭到税务调查),而库克对人、策略和执行——而不是产品——的重视终于开始看起来像个优势。

The number of such applications in Beijing last year increased 426% from that of 2015.
“整个20世纪下半叶,在世界各地,贸易和经济增速都出现了这么大的差异。所有的专业化分工都意味着出口增长快于GDP增长,”威廉姆斯说。
“I was quite sceptical initially in doing an online course but the communication and online interaction were perfect,” says one graduate from AGSM.
具有荷兰和美国双重国籍的Frans de Waal和另一位美国科学家Jennifer Pokorny获得这一奖项,他们的研究确认黑猩猩可以通过辨认同类的屁股照片来认出不同的个体。

The joint programme delivered by Tsinghua and Insead University (Tiemba) moved up two places to lead the 2015 global executive MBA ranking, dethroning Trium, which drops back to third place after only one year at the top.
The Fifa World Cup is close by. Let me give you a few rules that will preserve your beauty.
在最近一连串的几场比赛之前,史蒂芬·库里真的没有想到能够创造这么多的NBA历史纪录。
《请以你的名字呼唤我 》

本田已在美国召回了1000多万辆汽车,修复其安全气囊一项潜在的致命缺陷。这种气囊由日本供应商高田公司制造,其充气装置在发生车祸时会突然爆裂,溅出金属碎片伤及乘客。本田已确认有三起死亡和48起受伤事件与这一问题有关。
与此同时,红毯上出现了一个不幸的窘境,粉红佳人和夏奇拉穿着相同的巴尔曼礼服现身。
Erle Spratt, who manages M&G’s Asia property fund, an open-ended investment vehicle, says it is risky to invest directly because assets are not easy to find and price. “It is a very difficult market to buy assets in for investors like us, because developers have very substantial holdings and they tend not to sell,” he says.
喜剧类最佳男配角:路易?安德森(Louie Anderson),《小丑梦摇篮》(Baskets)
唐纳德·特朗普总统是美国第一位亿万富豪总统,不过,根据上周一公布的《福布斯2017全球富豪榜》,他已经不像过去那么富有了。

有史以来第1个真正有用的机器宠物
库克公开性取向的举动,提供了一个罕有的机会,让人们得以一窥他保护严密的个人生活,但同时也让苹果品牌在一些不太宽容的地方面临风险。库克在阿拉巴马州长大的经历促使他作出此举,他曾说在阿拉巴马州看到的一些歧视现象“简直让我感到恶心”。
Wealthy Chinese are showing growing interest in islands in recent years.
换总部:随着丰田迁至德州,奔驰从新泽西搬往北卡罗来纳州或乔治亚州,斯巴鲁也要建它的新总部了。它的一个选择是搬到离其客户群更近的佛蒙特州。
9.Use One Planner

请接受我节日的祝贺。
当然,那时候,伦勃朗是大热门。但是如今,这位荷兰画家和他的同辈大师已经过气,不再是收藏家和投资者渴望的对象。
007系列电影主题曲第九名:露露--《金枪人》
Nobel economists like Joseph Stiglitz, environmental activists like Bill McKibben, George Soros and the Institute for New Economic Thinking, politicians like Al Gore and other modern thinkers all warn us that traditional economists (and the banks, businesses and government agencies they work for) are addicted to bad economic theories, And they're sabotaging America's future.

The survey found the majority of grads, or 73.5 percent, have found jobs, while the number of students set to continue their studies in China accounted for just 6.3 percent, sharply down from 16.5 percent in 2016.
大学的发言人告诉记者:如果Siddeeq先生在之后的53年还是收不到这封信,他肯定会抱怨我们的效率。
JINX: THE LIFE AND DEATHS OF ROBERT DURST (HBO, Feb. 8) Andrew Jarecki (“Capturing the Friedmans”) directed this six-part documentary series with the cooperation of Mr. Durst, the New York real estate scion linked to several killings and the unsolved disappearance of his first wife.
Written instructions apparently issued by China’s tourism administration, shown to the FT by one Beijing travel agent, order agencies to cancel group tours to South Korea booked for after March 15 and add that companies not in compliance could be fined or have their licences revoked. The tourism administration was not immediately available for comment.
Best chance: Oldman has been the favorite for best actor since the film's Telluride premiere.
People on both sides of the Taiwan Strait are brothers and sisters, and no matter how the situation on the island evolves, the mainland is determined to maintain Cross-Strait stability.

31岁的C罗的足球圈中的死敌、今年一月击败其荣膺世界足球先生的里奥·梅西在2015-2016年度收入5600万英镑,位居第二。
D'Aloisio himself strives to maintain a bubble of normalcy. He dates the same girl he did before the whirlwind hit. And though he's stopped attending school-he's too busy to sit in class while overseeing Summly's development-he still gets his work from his teachers and meets with them regularly. He cherishes the fact that his circle of friends knows little of his life as a budding industrialist. When I met him, he was about to head to Greece for a weeklong vacation with a pack of high school pals.
黄记泳表示,去年赴韩旅游的中国游客超过800万人,同比增长36%。他还表示,甚至在韩国政府宣布部署萨德之后,该数字也曾继续上升。

该版猴票为我国发行的首套生肖邮票,因此颇受追捧。据悉,一枚邮票的价格已经从当时的发行价8分涨至1.2万元,整版价格更是达到150万元。
Google's top 10 searches for 2017–U.S.
“这部电影讲述的是在荒野中求生存、适应自然以及人文精神的胜利,更重要的主题是信任。”
这些表情包恶搞的话题涉及恋童癖、虐待儿童、性侵害以及纳粹大屠杀。
我不了解你是什么样的情况,但是如果我根据工作,生活和生活各自准备一个日历,我会手忙脚乱的。如果你生活中所有的事都记在一个日历上,在一个计划中,你就不能重复安排任何事了,就像一个重要的测试或者和老板的晚餐一样。