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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

海鸥卫浴董事长抛增持计划 大股东承诺不减持

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 毕业季北京房租涨幅达20% 中介乱收费现象频出 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

中国富人近年来对岛屿表现出越来越浓厚的兴趣。
201001/93691.shtml重点单词

Denmark, for instance, is 88 percent white Danish today — hardly a majority in jeopardy. But a generation ago, in 1980, it was 97 percent white. The anti-immigrant Danish People’s Party is now the second-largest party in the Danish Parliament. In Germany, where the foreign-born population shot up by approximately 75 percent between 2011 and 2015, the anti-immigrant, populist Alternative for Germany party is now drawing record support.

谷歌和亚马逊分居第二、三名。
根据中国海关的数据,今年头十个月,中国对美国出口同比增长5.2%,对东盟(Asean)国家出口同比增长3.7%。
Release date: 2015
在这场新闻发布会上,国家卫生健康委员会负责疾病预防的官员王斌称,中国已经在预防和控制艾滋病方面取得了进展。
re反,treat=tract拉-拉回-撤退
Historical and fictional films each have their own strengths when it comes to storytelling. Every now and then, though, movies pop up that don't quite fit into either category. The stories are wildly unrealistic, but they carry an inkling of truth between their pages. While these are some of the most interesting films out there, viewers often don't even know that what they're watching really happened. Well, wonder no more! Keep reading to learn about some of Hollywood's zanier scripts that took their inspiration from good old-fashioned real-life drama.
sup在下面+ply重叠,折叠→重叠下去→供应[下去],补给
冲击奖项:最佳电影提名应该可以肯定。参演《至暗时刻》的加里奥德曼是最佳男主角的最热人选,如果说有谁能击败他的话,那可能就是克莱门特了。

"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

此外,《美国新闻与世界报道》还提供了学科排行榜,包括计算机科学、经济学和商科以及工程学等热门学科。
评委会将奖项授予了来自东京工业大学的大隅良典,以表彰他在细胞自噬作用研究上所做的贡献。

劳瑞斯蒂尔
Did you have to worry about these little things when you were my age? 在您那个年代,您曾经担心过我们现在担心的事吗?
In the most significant change in methodology since this ranking was first published in 2005, the FT now collects information about alumni’s first jobs after graduation. These data are used in conjunction with information about their current jobs, three years later. This allows the FT to calculate their salary increase since graduation — a new ranking criterion — as well as their career progress (see methodology).
About 200 million migrants, half of whom are women, sent $445 billion to their families in Asia, Latin America and Africa in 2016, the International Fund for Agricultural Development (IFAD) said last Wednesday.

“我去的每一个地方,都发现企业主对未来的需求量有一个很好的预期,” Gus Faucher PNC金融服务机构的资深经济学家称。“商人必须提高薪酬来吸引更多的劳动力或者保留原有的工人”。
Against: Strong in many categories, but without quite managing to be a front runner in any. Perhaps Timothee Chalamet's performance is its best chance of awards success.
其他人将想方设法利用技术来帮助人们减少上网时间。谷歌(Google)前雇员特里斯坦哈里斯(Tristan Harris)发起的“时光莫虚度”(Time Well Spent)运动正在吸引人气,该运动鼓励设计者理解他们所控制的微妙的心理力量,以解决其所称的“数字注意力危机”。据Recode报道,曾经在Pinterest和Facebook工作的蒂姆肯德尔(Tim Kendall),计划成立一家专注于对抗设备上瘾的初创公司。
In the original casting, Michael Keaton was set to play the character. However, ABC executives begged the writers and producers to keep Jack alive. They believed the character was too likeable to die off so quickly. The writers agreed. Michael Keaton was not interested in signing up for a long-running show. Instead, the role of Jack was given to Matthew Fox. The rest is TV history.
Gitanjali因为拿下了本次最高奖项,从而获得了一笔2.5万美元的奖金。

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

If the oldest man ever elected president can “tweet like a kindergartner,” why not flip the script and see if a youngster can be elected to office and govern wisely?
因此,看看吧。我真诚地希望你们会喜欢它们,就像我在挑选和编辑它们时那样。

CDC

然而,在开始攻读EMBA课程之前,男女学员之间已然存在巨大的薪资差距,女性平均薪资较男性低15%,女性和男性的这个数字分别为11.1万美元和12.8万美元。
尽管该片被洛杉矶影评人协会评为最佳剪辑奖,但却没有受到纽约影评人的重视。它的势头会逐渐减弱吗?

根据世界黄金协会(World Gold Council)的数据,自2008年以来全球黄金供应每年都增长,这一增长在去年陷入停滞。作为世界最大的黄金生产国,去年中国的黄金供应创纪录地下降9%,这是自1980年来中国的黄金产出第二次下降。
While heavily dominated by French and English schools, accounting for 44 per cent of the table, the ranking is more diverse than ever with schools from 25 countries.
‘The Good Wife’ Once Will (Josh Charles), Alicia’s illicit love interest, died at the end of Season 5, this sexy CBS courtroom drama seemed as if it might droop and wither, but instead, the sixth season steamed with almost madcap energy, mixing Alicia’s newly fledged political campaign, a war of the roses between Alicia’s new firm and her old one, and the legal travails of Cary, her legal partner. Alicia isn’t quite so good anymore, and that makes “The Good Wife” all the better.
Now a white-haired grandfather, Belmonte has never regretted missing the 1950 match, particularly since his mother died just a few days later. "I decided not to go, and it was a good decision," he told the reporters.

Growth in the key sectors driving China’s economy softened last month, according to official gauges tracking activity at manufacturing, services and construction businesses.
From the beginning, social networks have been effectively walled off from the Internet. The treasure trove of content on Facebook, for instance, doesn't generally show up on Google (GOOG). But does it have to be that way? Wouldn't it be convenient to see Twitter search results automatically displayed alongside a standard Google search, for example? And why, for instance, don't the latest tweets about a restaurant pop up when you're searching Yelp (YELP)? The competing interests of different networks sends this content behind proprietary walls, but a number of tools offer creative ways to bridge the gulf. (Full disclosure: My company has developed one such tool.)
1. "Game of Thrones" (5.9 million)
Subdivided flats smaller than 100 square feet (9 square meters) can rent for $385 in the Asian city.

同时,罹患痛风的人升高了大约1/3,这个病在维多利亚时期的伦敦一度被视作“富贵病”,现在更倾向于认为与缺乏锻炼有关。
Data from the Ministry of Industry and Information Technology showed the production of new-energy vehicles last month surged by 144 percent year-on-year to 16,100 units, and the output of fully electric passenger vehicles tripled from the same period last year, reaching 7,952 units in January. Official data showed that 97 percent of new-energy vehicles produced in January would be eligible for favorable taxation policies.
时间:2011-12-06 编辑:Jasmine
A person walks through snow Tuesday in Belington, West Virginia. Superstorm Sandy buried parts of West Virginia under more than a foot of snow on Tuesday.
上榜的商学院包括来自26个国家的商学院,其中美国有35家,英国有10家,中国有9家。中国人民大学商学院(Renmin University of China School of Business)的排名上升最快,从第43名升至第18名。法国的格勒诺布尔商学院(Grenoble Business School)排名第70名,土耳其的萨班哲大学管理商学院(Sabanci University School of Management)排名第99名,巴西的Coppead排名第100名。

Likewise, if the 11 countries led by Japan left in the TPP manage to salvage a deal following the US exit that could provide some balance in the region.
This is not to take anything away from Tesla, which has demonstrated that it can create and manufacture a complex and sophisticated product with demonstrated customer appeal. But its own internal forecasts, as well as the swelling of its share price, are based on the expectation that the future will unspool in an orderly fashion identical to the recent past. That’s a dangerous assumption to make – for several reasons:
2015年9月,当“防止虐待动物协会(RSPCA)”的检察员们打开这处位于南澳大利亚阿德莱德的房子时,他们发现了14只猫咪,其中13只已经死去,仅存的那只也瘦弱不堪。
5) I take a gloomy view of things 0 1 2 3 4
你永远都不能把一只狼变成宠物狗。

凯瑟琳·毕格罗和编剧马克.波尔已经为了这部电影筹备了一段时间,影片讲述的是1967年发生在底特律的警方突袭行动,这次行动引发了美国历史上规模最大的一场民众暴动。出演该片的有凯特林.德弗、约翰.卡拉辛斯基、威尔.保尔特、约翰.波耶加以及杰克.莱诺。
制造业PMI降至5个月以来的最低水平,是由于受访企业表示,更严格的环保政策限制了业务扩张。这些政策旨在遏制每年冬天笼罩中国大部分地区的有毒烟雾。
n. 草稿,草图,汇票,徵兵
一名校友表示:我们被迫远离了安逸,但获得了独特的体验。

Islands in China come with many restrictions on their use and just 50 years of ownership.
Sonneborn, who lives in Bristol, Vermont, with his parents and younger sister, Julia, 11, is seeking the Democratic nomination.
Producing fake data, it appears, is condoned at official levels. Publishing real data lands you up in court. Much more of this and the public will be right to lose trust in official statistics.
准时完成你的工作。即使还有额外的任务,也要如此。
domestic
Cannes' heckles and jeers are famous and the first film to fall foul of this tough crowd was Gus Van Sant's Sea of Trees, which was greeted by a storm of raspberries and thunderous boos at its press screening. Because these take place before a film receives its black-tie premiere, word quickly gets around and can cast a pall over the big event. When Naomi Watts and Matthew McConaughey took their turn on the red carpet, it had “a horrifically compelling walk-of-shame quality” according to the Daily Telegraph. But the Texan actor put on a brave face at a press conference shortly afterwards. “Anyone has as much right to boo as they do to ovate,” he said. I think we know what he meant.

人类在过去50年的平均寿命比人类存在的20万年中的平均寿命要长的多。目前,人类的平均寿命是70岁,1950年的平均寿命是47岁,两者存在很大的差异。
purchase
It will be interesting to see which direction they go at the trade deadline. They have a handful of solid players along with Brook Lopez.

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。
体操、蹦床、竞技体操、艺术体操、
再来看一下流失顾客的公司吧。
9. 设身处地也能提高记忆力
n. 前进,航行速度,进展,(前后两车间的)车间时距