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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

政府部门发声禁用玻璃幕墙 石材幕墙顺势上位

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 辉县美涂士千人团购会掀春季装修狂潮 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

他还贴出了一张自己看着一群种族多元化儿童的图片。
导演贝尼特·米勒(Bennett Miller)认为卡瑞尔是饰演杜邦的合适人选,但不想让观众一眼就认出他来。他要求造型师比尔·科森(Bill Corso)改变卡瑞尔的外貌。

另一名来自美国的毕业生写道,来自世界各地的知识的丰富性和深度为课程带来了巨大的价值,他补充称,“鉴于这里汇聚着众多的文化和经验,有关贿赂的课堂道德讨论不像典型的美国学校那样枯燥。”

来自民主党的奥巴马和共和党的罗姆尼在竞选活动中,都把重点放在如何修复萎靡不振的美国经济上。据估计,至少有1.2亿的美国选民将选举投票。
2017年排行榜分别评选了60个“无工作经验要求”的项目和6个“有工作经验要求”的项目。“无工作经验要求”的项目主要面向拥有很少或没有金融业背景的学生,“有工作经验要求”的项目针对的是已经在金融领域工作的专业人士。只有少数几家学院提供“有工作经验要求”的课程。
米尔德里德的女儿7个月前遇害,但凶手仍然逍遥法外,主角一怒之下做出了一个大胆的决定:买下了小镇入口三张广告牌并在张贴图片中抨击颇有威望的警长威廉?威洛比。威廉的副手官迪克逊是一个幼稚的妈宝男,有暴力倾向。迪克逊卷入这件事后,米尔德里德和小镇执法系统之间的较量变得愈发激烈了。
Talk show host and comedian Ellen DeGeneres will host the Oscars ceremony for a second time.
官员们意识到发生了什么之后,他们立刻想上台救场。《爱乐之城》演员和剧组人员已经开始了获奖感言,听到这个消息,心都碎了。
卡恩称,Summly的机器学习和自然语言处理能力背后的设想和技术“均很出色”。
当发生问题时,库克会迅速而无情地采取行动。2012年底,苹果过早推出了有缺陷的苹果地图(Apple Maps)应用之后,库克解雇了乔布斯的亲密盟友、领导开发iOS的斯科特?福斯托(Scott Forstall),以及前Dixons首席执行官、掌管苹果零售部门不到一年的约翰?布劳伊特(John Browett)。此举传递出一条信息:库克不会容忍业绩不佳或内部政治。
单词adamant 联想记忆:

"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

A hilarious video showed the swaying crowds singing Can’t Take My Eyes Off You and Hey Baby to the laughing young woman in Bordeaux.
Starbucks, up 49 per cent to 21 in the ranking, has evolved from a café to a place where people can hang out all day since it now sells breakfast, lunch and evening meals, accompanied by alcohol in some places.

Wang Chunfa, executive secretary of the China Association for Science and Technology, has expressed deep concern over the retraction, which came just days after he met in Beijing with Arnout Jacobs, the head of Springer Nature for Greater China.
风水学。风水学也是可以帮助我们很好地布置办公桌的好帮手,千万不要把自己的桌子摆在一边靠着墙,背朝着门的方向。
['rep?twɑ:]
The annual national civil service exam kicked off last Sunday, and some recent hot topics - such as college graduates starting their own businesses and the Yutu (Jade Rabbit) lunar rover - appeared in the exam questions.

v. 劳累,拉紧,过份
adj. 全球性的,全世界的,球状的,全局的
新加坡樟宜国际机场已经连续五年在每年一度的Skytrax世界机场大奖评选中获得世界最佳机场。
"China is really in a tough position," Dr. Peters said. "Emissions have grown so much in the last 10 years or so that no matter how you look at China, it has an immense task."
The proposed amendment, which is expected to come into force on Jan 1, contains a clause stipulating extended maternity leave and other welfare for couples having children. These are expected to boost the willingness of some couples to have a second child. Many couples have expressed reluctance to have a second child because of the high costs of bringing-up two children and the prejudice they anticipate from employers.

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

美国各地许多餐馆和商店星期三向美国退伍军人提供免费服务或优惠,以纪念一年一度的退伍军人节。
Age: 53

CDC

morality
The inclusion of three turbodiesel engines this year could be considered controversial, especially as diesels remain far less popular in the U.S. than in Europe, where they tend to dominate the discussion. This is the first year in which more than two diesel-powered mills made the top 10 list and ironically two of them come from domestic automakers, including the only current full-size domestic half-ton pickup to offer one, the Ram 1500.

If a child on the street who has nothing, is willing to share, why are we who have everyting still so greedy? 如果一个孩子在自己一无所有的时候都能愿意分享,为什么拥有一切的大人却如此贪婪?
1936年诺贝尔和平奖奖牌在美国巴尔的摩的拍卖会上拍出116万美元高价,这枚奖牌是在南美的一家当铺里被发现的。
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.
7. Viceroy's House

Rouslan Krechetnikov和Hans Mayer对液体的溅出现象进行了研究。他们考察的课题是:人们在端着咖啡杯走动时咖啡的溅出情况,给你个提示吧,在你走到第七步至第十步之间,咖啡最容易溅出。
They say that it is especially risky to use the same password for entertainment sites as for email and social networking accounts.
n. 委员会,委托,委任,佣金,犯罪
The price of U.S. benchmark West Texas Intermediate crude, which is traded on the New York Mercantile Exchange, has been kept lower by problems transporting the oil to markets. Those troubles have eased recently, but Sabine Schels, head of fundamental commodity research at Bank of America Merrill Lynch, doubts the problems will disappear.

莱昂纳多凭借他在《荒野猎人》中的演出斩获最佳男演员奖项,打败了埃迪雷德梅尼等劲敌。埃迪凭借在《丹麦女孩》中的演出获得金球奖提名。坊间盛传小李子有望在今年夺得他人生中第一座奥斯卡奖杯。
At age 20, the teen prodigy of "Royals" raised the bar, marrying the massive vistas of electronic music alongside the human-scaled and handmade on her second LP, with help from co-producer Jack Antonoff.
……太紧张,差点昏过去。
Did you write The Lego Batman Movie off as kids-only? Biggest mistake ever. This movie is a witty feat of hilarity, full of dry humor and moments of comedy gold. Basically, if you like Will Arnett in Arrested Development, you will like this.
将第1题到第9题的分数相加,计算自己在“消极情感”维度的得分。

但是,欧洲央行宣布决定后市场暴跌。投资者抱怨称,这家央行此前在其准备注入多少额外刺激以支撑复苏的问题上误导了市场。
幸好这类单曲只是《名誉》这张专辑的一部分。在《Dress》(《连衣裙》)这首歌中,她沉醉于令人激动的新恋情里;在《New Year’s Day》(《新年》)这首歌中,她试着弄明白聚会结束后她还拥有什么。
Effective bosses and managers tend to:
“有个员工的父母跟公司联系,告诉我们说,他们的儿子辞职了。”
There’s no arguing with that one. From bathroom signs to fashion runways, the gender lines have been blurring at an ever-faster pace. It’s about time we ended ye olde pink/blue, girl/boy stereotype divide.

扎实有效去产能。
turkey
去年,中国工商银行的每股盈利为0.77元人民币,低于上一年的0.78元人民币,税前每股分红为0.2333元人民币,低于上一年的0.2554元人民币。
蕾哈娜在榜单上排名第二,获得亚军,《男人装》表示:在这12个月以来,她真是无处不在,但是我们依然没有对她审美疲劳。

[nju:'trin]
You might think Hawaiian has it relatively easy, since its flights rarely have to contend with the kind of challenging weather conditions found on the mainland. Hawaiian perennially rates high in on-time performance rankings, topping the most recent DOT list i n September. It recently announced it will branch well beyond its island home with non-stop service to Beijing.
源于:sloth(n (对工作)懒惰)slou=slow,ch吃:吃得慢-无精打采的样子
《盗墓笔记》
Which showed month-on-month prices had fallen – albeit marginally – in Beijing, Tianjin, Shanghai, Shenzhen, Xiamen and Zhengzhou during the second half of the month.
2018年特里萨梅(Theresa May)会继续担任英国首相吗

"We hold ourselves to a very high standard," Curry said. "We didn't put any pressure on them defensively in the third quarter. We were sloppy on a couple of possessions offensively and gave them life. Those are things we need to improve on. Everyone likes to learn those lessons in wins."
Businesswomen are booming in Asia: The whole region makes a strong showing, from China and Singapore to New Zealand and Thailand. Entrepreneurship is on the rise: see Zhang Xin (No. 50) , Sun Yafang (No. 77) and Solina Chau (No. 80). And Asian region women are showing their political might, from newcomer Park Geun-hye, the South Korean president (No. 11) and Burmese dissident and parliamentarian Aung San Suu Kyi (No. 29) to Australian PM Julia Gillard (No. 28) and Thai Prime Minister Yingluck Shinawatra (No. 31).
受此影响,对设备等关键领域的商业投资一直处在美国复苏历史中的低点。若就业市场缓慢改善,且家庭财富增长,则可能引发消费支出增加的良性循环,增强商业信心并增加投资。但若情况并非如此,那么今年将再度令人失望。

In comments reported by state news agency Xinhua on Thursday from a speech given at a meeting of regional leaders in Cambodia on Wednesday, Mr Li said the Chinese economy had performed above expectations in 2017 as trade reversed two years of declines.
Emma Thompson, a two-time winner for Howards End and Sense and Sensibility, famously keeps hers in the loo: “They look far too outré anywhere else. They’re great big, gold, shiny things.” She’s not alone – Susan Sarandon, Lionel Richie and Sean Connery all claim to keep their golden fellas alongside their bidets and baths.
Bra discussions: Lindsay Lohan discusses her lingerie needs with a sales assistant in the Naked store in SoHo, New York on Tuesday .  来!内衣分析一下:周二在
第九步 每天,告诉全世界“别BB了”,其实这样蛮圈粉的
benefit