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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

“便利店+”时代正在来临

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 “网聚供应链”——涂料产业峰会开启电子商务2.0时代 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Allianz
Rose McGowan accused producer Harvey Weinstein of rape this time last year, sparking an avalanche of allegations in the entertainment industry and beyond.

The bulk of the risk in this move comes with the possibility that both Ibaka and Turner are free agents this summer, but the disappointment that might result from losing one or both would pale in comparison of a postseason flameout in May.

据悉,这个女孩来自上海,在两个月间每天都通过她妈妈的手机和银行卡,给这名男子网上支付1900元到9500元不等。
随着中国经济结构的演变,富豪榜单也在发生改变。
Arizona, Texas Head List Of Best States For Expected Job Growth
n. 外表,外貌,出现,出场,露面
Airbnb的紧要关头
"That of course is in keeping with all of the developments that we have seen in China in recent years, including the current enormous emphasis on innovation as a major component in the transition of the Chinese economy from 'Made in China' to 'Created in China'," he said.
拉斯维加斯枪击案
The most popular variation of this line is “Don’t fantasize about big sister: I am only legend.”

"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

Sinta Nuriyah
7.Manage up, down, and sideways

We'll start our review with the South American nations, and who else could we begin with, but the hosts Brazil. Rewind 18 months and they looked like they'd be struggling, but the appointment of 'Big Phil' Scolari has been inspired, and he's brought a belief to the team that was previously missing. Last years 3:0 demolition of Spain in the Confederations Cup final shocked many experts, and all of a sudden the Brazilians have expectations on them. Whilst you can't argue with that scoreline, we still wonder if Brazil have the firepower to win such a long tournament. Neymar is expected to conjure up the magic, but they're relying on Fred to come up with the goals. No disrepect to Fred, but the last two Brazilian teams to win the World Cup, in 2002 and 1994, could count on the likes of Ronaldo and Romario to lead the front line, two genuine legends of the game.
Nine provincial-level regions' GDP exceeded 3 trillion yuan in 2016, three more than the year before. The number of provincial-level areas with GDP surpassing 1 trillion yuan in 2016 remained 25.
他编写出的第一款软件是个音频播放器,可以播放他偶像史蒂夫?乔布斯(Steve Jobs)演讲的音频片段,而音频来自一个乔布斯的传记,内容没有经过授权。如今达洛伊西奥笑着回忆道,软件因为音频受版权保护、性能不流畅、过于简单之类的各种原因,被苹果拒绝了。他早期设计的另外一个应用软件能让用户触摸一张木头的图片时发出敲击的声音。第三个应用则将智能手机的屏幕变成一个锻炼手指的跑步机,这一次,软件第一天便赚了120美元。
China accounts for about 15 per cent of the world’s gold production, a higher proportion than Saudi Arabia has in the oil market. But since 2016 authorities have tightened their scrutiny on gold mining, which has led to the closure of smaller mines in the country.

The school is also second for its international course experience. More than four in five of its latest graduating cohort went on an internship abroad and over half studied in another country for more than a month.
On Aug 21, the country came to a pause as millions of Americans — even the president — put on eclipse glasses and stopped to take in the first eclipse to cross the United States since 1918. Its path across the United States was a scientific bonanza for astronomers who were able to more easily point advanced equipment at the sun.
不会。这笔被誉为史上最大规模的首次公开发行(IPO),是沙特实际领导人穆罕默德本萨勒曼(Mohammed bin Salman)宏大经济重组计划的基石,因此沙特阿美IPO肯定会成行。该公司的股票将在沙特本国的证交所上市。不过,此次IPO计划在国外的部分不太可能是一次公开发行。唐纳德特朗普正在为纽约游说,伦敦也在全力以赴争取。香港和东京也在沙特的考虑之中。但沙特会转而选择非公开售股,或者在晚于预期的时间在国外上市。
而诺贝尔物理学奖则颁给了三位生于英国、目前正在美国工作的科学家,肯定了他们对极端状态下物质的特异属性所做的原子级研究。
但是,这一情况在两年前发生了变化,清华大学首次跻身前20名,2016年排名第18位。去年,北京大学也跻身前20名。

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

0=不是
单词determine 联想记忆:

CDC

Temperatures had already risen by 0.8C since the industrial revolution and although last year’s 1C rise may not be repeated every year from now on, scientists said 2016 could turn out to be another exceptionally warm year as the El event continues.
7. Your company's human resources staff saw your résumé on a job board。

If nothing else, it's clear that when it comes to the summer, the NBA season doesn't really ever stop. It just switches gears.
每个句子后面有5个数字,选择最能反映你的感受的数字。
Mr Ravenscroft ended up leaving teaching to found Enabling Enterprise, a body that seeks to bridge the gulf between schools and business by taking pupils out of the classroom and giving them practical projects and visits to businesses, including UBS, the bank, and Freshfields, the law firm.
You are supposed to enjoy life, not be stressed out all the time. If you spend most of your days stressed about everything that going on at work, you are not at the right job.

去年,CPI指数上涨在一月时达到峰值2.5%,随后在剩下的时间里在2%以下波动。
The highest average monthly salary for 2016 graduates is 5693 Yuan in IT/Internet/telecommunications/electronics industries; second is financial industry and culture/sports/entertainment/media industries with average salaries level of 4685 Yuan and 4552 Yuan respectively; monthly salaries in agricultural/forest/grassland farming/fishing, and services/ educational sports/industrial arts are relatively low among signed graduates, respectively are 3500 Yuan, 3873 Yuan and 3900 Yuan.
The emotions were far more visceral and less attractive.
值得注意的是,中国电信巨头华为递交了2390项专利申请,其专利申请数量在全球企业中排名第二,仅次于飞利浦(2568项)。

[spred]
然而,今年该项目仅排在第8位。
Seven schools made it back into the top 100 after having missed out in the past year or two.
Britney, YOU drive me crazy for appearing on Loose Women smacking gum like it's 1998 as the panel interrogate you.
vaccine

But that moment, try as Google might, has yet to come. Some reports have named 2014 as the year when wearable devices will hit the mainstream, but a newer study from L2, a digital research firm, confirms what many have been quietly fighting for: wearables are still not socially acceptable, creating a significant hurdle to further sales.
“一国两制”的实践要不动摇、不走样、不变形。
INDOORS: The two-story stucco contemporary was built in 2005. The interior is an airy open space; white walls contrast with red tile floors. Walls of sliding glass doors face live oaks and marshland on the Wilmington River.
A teenage student in Southwest China's Chongqing Municipality has been sentenced to one year in jail after trying to poison fellow students for being too noisy in class, local media reported last Wednesday.
福布斯杂志认为,特朗普净资产的下降,主要是由于曼哈顿市中心房地产市场的疲软。

单词appearance 联想记忆:
According to figures from Zhonggong Education, an institute that monitors the applicant numbers, more than 459,600 people applied to take the exam by the sixth day of this year's application window on Tuesday. Almost 103,000 of those had applied on Monday.
课程安排:伊利诺州埃文斯顿校区授课时间为每隔一周的周五至周日;佛罗里达州迈阿密校区每月上一次课,授课时间为周四下午至周日中午
In local currency terms exports managed slight growth of 0.6 per cent last month, besting expectations of 0.1 per cent contraction but still down substantially from growth of 5.9 per cent in November. Imports grew 10.8 per cent in renminbi terms, more than double the expected 4.8 per cent but down 2.2 percentage points from the month prior.

7、人民币贬值
在电影《007:大破天幕杀机》中饰演邦女郎的贝纳尼丝·玛尔洛(Berenice Marlohe),已经确认加盟导演特伦斯·马立克(TerrenceMalick)执导的最新电影作品,目前此影片正在奥斯汀进行拍摄。
? President Obama declared a "major disaster" in New York and New Jersey. Flooding devastated the coast and more than 2.3 million lost power. The National Guard rescued hundreds from flooding in New Jersey. The governor, Chris Christie, a Republican, said the damage was "unthinkable". He praised the "outstanding" co-operation he had received from Obama.
据英国《卫报》报道,在去年的伦敦时装周期间,有250名反皮草抗议者,2月份的玛丽卡特兰佐秀场也受到了抗议者激烈的抵制。
然而,007系列电影主题曲却并没有人们想象的那么历史悠久。第一部《诺博士》和第二部《俄罗斯之恋》没有开场曲,而是安排了管弦乐。《诺博士》甚至插入了《三只瞎老鼠》的怪异演奏。随后,《女王密使》才开始有了开场曲,并且在影片的中间和结尾插入了主题曲。
n. 名人,名誉,社会名流

Rocco LaDuca, covers crime and courts at the Observer-Dispatch in Utica, New York. He says he became a reporter in part because of fond memories of reading newspapers with his grandmother.
我们也不希望打贸易战。我们坚持人民币汇率形成机制的改革,保持了人民币汇率在合理均衡水平上的基本稳定。
今年时装周预计在今年9月14日至18日举行,在此之前,由歌手帕洛玛费斯撰写并由善待动物组织出版的公开信中呼吁伦敦时装周和英国时装协会禁止动物皮草的使用。

Isolated in northern China, this virus was similar to the virus that spread before 1957. For this reason, individuals born before 1957 were generally protected, however children and young adults born after that year were not because they had no prior immunity. By January 1978, the virus had spread around the world, including the United States. Because illness occurred primarily in children, this event was not considered a true pandemic. Vaccine containing this virus was not produced in time for the 1977-78 season, but the virus was included in the 1978-79 vaccine.
AIG CEO Robert Benmosche will be voted CEO of the Year.
脱口秀主持兼喜剧演员艾伦·狄珍妮丝将会第二次主持奥斯卡颁奖典礼。
为编制英国《金融时报》2017年金融硕士课程排行榜而收集的数据显示,在金融领域工作的毕业生当中,性别多样化程度日益上升。
奥巴马将迎来第二个任期,摆在他面前的任务依然很艰巨:如何处理1万亿美元的高额年度财政赤字,如何削减高达16万亿美元的国债,如何改革开支高昂的社会事业,如何应对党派斗争激烈陷入僵局的美国国会等等。