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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

11月300城市土地市场量跌价涨

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 海南废止14件地方性法规:包括禁止赌博、彩票罚款等规定 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

The Sixers are still slowly pivoting from a full-on institutional tank job to trying to be competitive, and the Suns are not expecting to be anything like good. So those two teams are quasi-tanking. They are, at least, not mad about losing.
想知道2013年的最差工作是哪些吗?报社记者以其令人尴尬的特质,取代伐木工人成为今年的最差工作。

Paris is the only Eurozone country in the top 10, and sees a drop of three places, which the report says may be due to falling confidence in the euro.

约60%的学员尚未参加工作,另有30%的学员拥有不到两年的工作经验。
Or maybe you've become bolder in arguing against decisions you disagree with, Foss says. "Any variation to what's expected of you or from you could raise an eyebrow," she adds。
星期三,2014年春晚主持名单公布,包括了朱军、董卿、毕福剑、李思思和张国立。作为电影演员和导演的张国立会首次主持央视每年举办的春晚。
单词invigorate 联想记忆:
The improvements in education levels mirrored the development of China's education system. Independent research into China's education situation showed that overall education development was better than the world average last year, Yuan Guiren, minister of education, said in March.
无论从哪个角度看,2014年都是本田汽车公司宁愿忘却或掩盖的一年,看看本田为2015年提出的宏大口号——“本田之年”就知道了。
Homing in on a brand that excels at making the kind of vehicle you’re looking for is an efficient way to focus your shopping and find the best car for you. The 2016 U.S. News Best Vehicle Brand awards recognize the best brands in four categories: Cars, SUVs, Trucks and Luxury.
3、《丛林故事》

"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

然而我知道,你们这一代人不同于过去的任何一代人,极其渴望体会不同以往的人生。所以,在你们离开学校之际,我要向你们介绍几条显而易见、却容易忽略的真理,帮助你们以略微不同的角度来看待生活,而不是仅凭一叠薪金来认识世界:
In this May 6, 1998, file photo, Steve Jobs of Apple Computers unveils the the new iMac computer in Cupertino, Calif

201202/172834.shtmlChinese entrepreneur Wang Xing stays in touch with a sister in California and an uncle in Australia through chat software that offers a glimpse of how China's Internet companies can compete globally.
This includes McKinsey, the consultancy that kick-started its secretive leadership election process in October with a gathering of more than 500 senior partners at the Grosvenor House Hotel in London. The next stage involves the firm’s 550 senior partners voting on a shortlist of candidates to replace Dominic Barton — the incumbent since 2009 — in January, followed by a run-off between the two most popular candidates in February.
As US ETF assets under management passed the $3tn mark this summer, AUM in the Asia-Pacific industry just managed to creep over $350bn.
Pyongyang, which refers to Park as "human scum' has long condemned the balloon launches and in recen onths has stepped up its demands for Seoul to ban them.

加快培育壮大新兴产业。
Taylor Swift “Blank Space” (Big Machine)
教育部还表示,公费留学学生的归国率达到了98%。公费留学生一般选择中国急需的专业,包括工程学、纯科学、农业和医学科学等。
5.高效决策者
v. 借,供应货款,

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

愿你所有的新年想都成真!
在中国北方分析出的这种病毒与1957年以前传播的病毒相似,因此,1957年以前出生的人一般都有了抵抗力,而在那年之后出生的儿童和年轻人由于没有预先的免疫力而缺乏抵抗力。1978年这种病毒在世界各地传播开来,其中包括美国。这种病主要发生在孩子们身上,因此,这次流感没被看成是真正的大流行。1977-78年的流感季节,还没有及时地生产出控制病毒的疫苗,但是,1978-79年的流感疫苗就包含了这种病毒的疫苗。

CDC

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.
以美元计算的话,这一跌幅就更加明显了,上个月出口同比下滑11.2%至1774.8亿美元。这一跌幅不仅超过了去年12月1.4%的跌幅,也超过了下滑1.8%的预期。这是自去年3月下滑15%以来的最大跌幅。

今年登榜的还有“starwars”(星球大战),排名第16。
“FKA细枝”(FKA twigs),《两星期》(Two Weeks),Young Turks
“How you leave a position can make a lasting impression,” notes OfficeTeam executive director Robert Hosking. That’s for sure. Most (86%) of the HR managers in the survey said that how someone quits a job “affects their future career opportunities.” Word gets around.
单词regulate 联想记忆:

有些人则特地请人代劳:
In one tweet that was posted on Jan 10, Obama wrote, "Thank you for everything. My last ask is the same as my first. I'm asking you to believe - not in my ability to create change, but in yours."
When reflecting on the year in film, moviegoers often remember strong performances, or they might consider how a movie worked as a narrative, the emotions it evoked, what chances it took.
For years, slow emissions declines in the West have been swamped by rising emissions in the East, and the trend continued in 2013. China's emissions grew 4.2 percent and India's 5.1 percent. Both countries have been constructing coal-burning power plants at a breakneck pace.

骑行背带
她还表示,由于西方一些国家的经济条件和反移民情绪,许多中国学生发现现在很难留在这些国家。
大力促进就业创业。
两队将于10月5日抵达深圳并将在深圳大运中心进行比赛。
Weaker demand from emerging markets made 2015 the worst year for world trade since the aftermath of the global financial crisis, highlighting rising fears about the health of the global economy.

《ScreamRide》
The Veterans Day holiday, which pays tribute to all men and women who have served in the U.S. military, dates back to 1919, when President Woodrow Wilson proclaimed November 11 as Armistice Day to celebrate the end of fighting exactly one year earlier in World War One - "the war to end all wars" - between Germany and the allied nations of Britain, France and the United States. The armistice famously went into effect at "the eleventh hour of the eleventh day of the eleventh month."
romantic
我发现自己经常担心一些事情
因此,39%的90后试图避免使用手机所带来的负面影响,措施包括关闭APP的消息提示功能、限制社交媒体互动频率、以及在某些情况下完全不使用社交媒体等等。

None of these potential clouds appear to darken the sunny view from Tesla headquarters in Palo Alto. Tesla is sticking with its middle term goal of building 500,000 cars a year by 2020. Much will depend on the ability of the Model X to maintain the current momentum – and mystique. Tesla has steeply ramped up spending on capital expenditures and R&D to make sure the launch, already a year behind schedule, is a success.
Analysts say headline import figures may start to improve in the coming months since commodity price falls were particularly pronounced at the end of 2014, which will mean smaller year-on-year falls in Chinese imports in value terms.
当银行打电话给哈维尔的父母,告诉他们有关收费的事情的时候,他们才知道发生了这样的事情。
A segment of Peking Opera from “Take Over The Weihu Mountain” (Yu Kuizhi and a student from Confucius Institute)

Chinese imports fell 18.8 per cent in October from the same month a year earlier, a slight improvement from the 20.4 per cent year-on-year fall in September. Sharply lower prices of oil and other commodities also helped scythe the bill.
在过去三年里,夏威夷航空公司的航班延误率只有6.92%,几乎是排名第二的阿拉斯加航空公司的一半——这家公司的航班延误率达到11.27%。
美国两个城市的生活成本都有了显著增长,洛杉矶上升了19个名次进入前十。
赫洛维兹对爱尔兰广播公司RTE表示,他的新邦德形象强烈忠于50年代的邦德。
The Bellarine Peninsula, located Southwest of Melbourne, Victoria, has been a hotspot for timeless beaches and historic towns like Queenscliff and Portarlington.
《广告狂人》对时装的影响体现在品牌的发展当中,例如香蕉共和国(Banana Republic)就推出了《广告狂人》系列(这个系列是与该剧的服装主管贾妮·布赖恩特[Janie Bryant]联合设计的),而且很多心照不宣的地方在设计中更加随处可见:裁剪和印花,褶边和接缝;它的影响渗入了在秀台上普遍存在的一种鲜明理念:如果你缺乏灵感或者产生了审美怀疑,就去回顾60年代吧。

菲亚特(Fiat)试图就投资克莱斯勒(Chrysler)条款重新谈判。
室内环境:这栋砖砌结构、灰泥粉饰并铺着瓷砖屋顶的两层楼房屋由Dorr & Dorr公司设计,于1916年完工,近15年内曾经翻修。该房屋采用了半牧场、半工匠艺术的设计风格,运用了简洁的线条、开敞式空间、典雅的木制品和彩色玻璃等设计。翻修工程由明尼阿波利斯市Sala建筑公司的约瑟夫·麦茨勒(Joseph Metzler)完成。
我们的外汇储备是充裕的,是足以支付进口和满足短期偿债需要的。

“People are used to the Fed saying it will tighten but, in the end, with volatility or other risks on the horizon, policymakers take it back and it’s a case of if in doubt, stay on hold,” Mr Koepke says.
据悉,大多数借款的女性年龄都在19到23岁之间。
If managers suspect you're looking elsewhere, your LinkedIn profile is often the first place they'll snoop, says Jenny Foss, founder of the career blog JobJenny.com and author of "Ridiculously Awesome Job Search Kit." "It's where a lot of people tend to get busted," she adds。
Apple tops the list of World's 500 Most Influential Brands for 2016, compiled by New York-based World Brand Lab and released last Monday.
n. 制作人,经理人,主办者