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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

宁吉喆:我们的国民经济核算科学可靠、真实可比

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 11月54城新房网签量环比跌一成 北京房价仍在涨 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Tesla says it enjoys sales per square foot at its showrooms that are double that of Apple . The tech company is currently considered the industry leader.
1997:H5N1传染人类1997: H5N1 Infects Humans

departure

About 60 per cent have not yet worked and a further 30 per cent have less than two years’ experience.
在欧洲所有商学院中,高管MBA校友在毕业3年后的平均薪资为14.3万美元,管理硕士毕业生为5.4万美元。MBA毕业生平均薪资为12.3万美元。西班牙和德国的管理硕士毕业生在毕业3年后的薪资最高,均为平均7万美元。法国MBA毕业生和瑞士EMBA毕业生的薪资最高,平均薪资分别为13.7万美元和16.6万美元。
10月份的读数较9月份回落0.8个百分点,其中主要追踪大型国有企业的生产指数回落1.3个百分点,降至53.4。新订单指数回落1.9个百分点,降至52.9。
Interestingly, a survey found Beijing was thought to be the most congested city in China, among 31.8 percent of respondents, followed by Zhengzhou at 8.8 percent.
The requirements come from one of two newly issued regulations over the taxi and online ride-hailing services by China's transportation authority. The regulations will take effect in October and November respectively.
portion
出口的提振在很大程度上源自对美出口,其价值自3月份以来首次出现同比增长,同比增6.9%,至368亿美元。在其他出口目的地中,对欧盟出口同比增长5.1%,至299亿美元,对日本出口同比增长3.2%,至122亿美元。
万分沮丧之下,他发明了可以允许自拍的东西:他称之为"伸缩杆"。因为智能手机还没发明出来,所以,连接在自拍杆末端的是一个微型相机。在杆的前端有一面小镜子,方便使用者调整他们在相机里的姿态。他在1983年为"伸缩杆"申请了专利。虽然自拍杆进行了大量生产出售,却属商业败笔——相片的质量比较差。另外,以前的研究表明,那时的女士会因自己有自拍的想法而感到尴尬。在2000年,自拍杆被韦恩·弗洛姆(Wayne Fromm)重新发明,那时,上田宏的"伸缩杆"专利期尚有三年。弗洛姆称他的自拍杆为"快捷豆荚"。他认为他才是当今自拍杆的发明者,甚至起诉其他自拍杆生产者。当被问到上田宏的自拍杆时,弗洛姆评论说它们是"先前的艺术"。

"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

securities
中国的全国居民消费价格指数(CPI)和工业生产者出厂价格指数(PPI)仍很温和或处于收缩区间,但上月都出现了些许回升迹象。

Bolder lawyers will start working with more “sci-fi” programs that claim to predict the outcomes of legal disputes before they have reached court, by analysing similar cases and past rulings, opposition tactics and win/lose statistics, the success rates of certain lawyers before certain judges, and so on.
英国国家卫生署去年公布的入院患者的数据显示,各种各样的营养性疾病和传染性疾病在过去十年来以惊人的速度增长着。
Sun said he tried to pry open the elevator door, but dismissed the idea and instead leaned against the wall concerned there could be a malfunction that would send the elevator in a free fall.
3.Sit in the Front Row

在主要贸易伙伴中,以美元计的出口确实出现增长的包括对美国的出口,同比增长5.5%,达到370.6亿美元。而对韩国的出口也显示增长8.3%至102亿美元。
眼看11月就要过去了,正如我周一写的那样,往年经验表明,9支球队很有可能已经被踢出季后赛地竞争行列了。然而,他们中没有一支球队表明要摆烂。
Ah yes, the other reason Sacramento shouldn't tank: Philadelphia has the option to swap picks with them this year. It's actually impossible for the Kings to get the No. 1 pick because of that, and it hurts their chances at a top-three pick overall.
WOLF HALL (PBS, April 5) In the season’s most promising piece of casting, Damian Lewis (“Homeland”) will play Henry VIII and the two-time Tony Award winner Mark Rylance will play Thomas Cromwell in this “Masterpiece” adaptation of the popular Hilary Mantel historical novels.
vi. 谈话,讲述

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

University officials said the letter was now on its way to him along with a T-shirt from the university.
如今,蓬勃发展的互联网经济在支撑我国信息技术(IT)行业财富增长方面正发挥着越来越重要的作用。

CDC

Trailing behind "Game of Thrones" on the most downloaded list are "Breaking Bad" and "The Walking Dead." Here is the list of 2013's most-downloaded TV shows (single episode) according to data collected by TorrentFreak and BitTorrent trackers:
Bernard Baumohl, chief global economist of the Economic Outlook Group, said he is even more optimistic. "The next two years could be the best two we have seen in at least a decade," he said. "There is clearly a lot of evidence the economy is gaining a lot of momentum."

能够再次主持奥斯卡我感到非常激动和荣幸。你知道有句老话:第三次总是幸运的。
单词senior 联想记忆:
7. Amy Adams - $13.5 million
平均工作经验:12个月

另一方面,为什么捷蓝航空公司的航班在假日期间晚点率最高(高达22%)?首先,这家航空公司的飞机往返美国最繁忙的几个机场,包括纽约肯尼迪机场、拉瓜迪亚机场和纽瓦克机场。捷蓝航空公司也遇到了夏威夷航空公司在太平洋空域上遇到的相同问题。
《维多利亚与阿卜杜勒》
As a result, 39 percent of the post-90s generation tries to avoid the negative effects of mobile phone use through measures like turning off app notifications, intentionally limiting the frequency of social media interactions and staying away from social media entirely in certain situations.
"The autonomous region has invested 4 billion yuan (around 600 million US dollars) to promote industries with local features in poor areas, and relocated 77,000 poor people last year," said Lu Huadong, deputy director with the office.

jar
如果一个“推文幼稚的像个幼儿园小朋友”一样最年长的人,都可以当选总统,那为什么反过来不试一下,看看年轻人能否当选并明智地执政?
“D型人格”最先由荷兰蒂尔堡大学的心理学家Johan Denollet提出。他还设计了一个测试,帮助人们认识自己是否具有D型人格特征。
为什么会有这样的不同?原因并不是因为双方获得的信息不同。正如库迪斯和沃斯所指,荷兰金融圈里的每个人都知道和了解所发生事件的严重程度。也不是因为Seppenwolde的贷款机构不得不重建自身财务。违约几周后,贷款机构就知道他们没有损失一毛钱。
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.

Housing started last year on a high note. It ended the year facing mounting worries about higher interest rates, supply constraints, tight credit and a host of other problems.
Rank: 5
It was visible in practically every brand that edged from the 1960s to 1970s for the season currently in stores, including Alberta Ferretti, Pucci and Etro.
这是第一首真正意义上的007系列电影主题曲(再说一次,詹姆斯·邦德前两部电影开场只使用了管弦乐),至今仍然是最好的一首。雪莉·巴赛得到了唱出自己心声的机会,她很乐意接下这个挑战。这首歌增添了《金手指》中反派人物奥里克的危险性(还有吸引力),但这仅仅只是雪莉·巴赛歌曲魔力的一部分。詹姆斯·邦德傲慢自大、英雄主义、诱惑人心、虚幻迷离,但谁在乎啊?这首歌就是为詹姆斯·邦德所作,歌词充满男子气概,歌手的演唱简直完美。
结果发现,被要求画出单词的参与者能够更准确地记起这些单词。而且画本身的质量并不会对记忆效果有什么影响,帮助记忆的仅仅是“画画”这个动作。对于香蕉,画一个大概的轮廓和详细的画出每个细节,产生的作用是一样的。参与者们即使只是花上几秒来画画,也能在记忆结果上有显著提高。研究人员还计划进一步地引进更复杂的单词甚至观点表述来观察参与者记忆表述的准确度。

"All institutions in this list deserve to celebrate - being named one of the most international universities in the world is a sign of great potential, competitiveness and dynamism."
但与其他世界主要国家领导人相比,这薪酬已经是最高了。
在纽约举办了多次其标志性的时装秀之后,内衣品牌维多利亚的秘密又来到伦敦、巴黎、戛纳和洛杉矶举办维密秀,而在2017年,该全球女士内衣行业巨头来到了上海。
追踪制造业、服务业和建筑业商务活动的官方指标显示,10月份这几个驱动中国经济的关键行业的增长有所放缓。

There should be no more arbitrary use of government power and that requires that the government must no longer overreach itself and we must eliminate any possible room for rent-seeking behaviors. This reform must be persistently pursued by the central government and all local governments at varies levels.
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.
The circular also stressed zero tolerance for cheating.
adj. 稳定的,安定的,可靠的
但是,在秀台上和零售店里,那种情感上的认同消失了。那么,我们还剩下什么?
“The consumer will take a little more time to come back which is why we’re focusing on a game plan we know that works, focusing on affordability and premium [drinks] in metro areas,” he said, adding that he is confident that the company can continue to gain share in the country and is set up for when consumer spending picks up again.

乌拉圭之所以取得成功,不仅仅是因为它对足球的激情,还因为其早期文化的包容性。在1950年世界杯上,当时其邻国巴西仍然对黑人球员心存怀疑,乌拉圭队却以拥有一位黑人队长、杰出的巴雷拉而感到自豪。此外,乌拉圭在世界杯成型期的胜利造就了延续至今的血统,它的很多球员如今都在海外的一些世界豪门俱乐部踢球,如利物浦的苏亚雷斯和巴黎圣日耳曼的卡瓦尼。
leakage
University officials said the letter was now on its way to him along with a T-shirt from the university.

Inarritu said: "I forgot to thank all the native Americans who made this film possible. I cannot say how surprised I am and how proud I am to have survived this film with all these fellows."
报名窗口将于周六关闭,报名成功者须参加11月29号的2016年国家公务员考试,考试通过后才可以参加明年3月的面试。
在一份电邮声明中,国际足联表示,在小组赛中,三等票总计售出143364张,相当于每场比赛就卖出了3000张。
New Year should be a time of banked-up fines, the scent of flowers and wine, good talk, good memories and loyalties renewed. But if all else is lacking - love will do.
此外,这也是北京大学连续第二年在亚洲大学排行榜上排名第二位。