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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

复验不合格的建筑材料 一律按要求退场

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 绿色建材市场混乱 健康发展需制度保障 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

unique
如果你的确需要招募很多自由职业者来为你打短工,那么你或许考虑过,干脆把服务外包流程也外包出去。市面上有好几家不错的公司从事这样的服务,每家都有不同的业务模式。比如,Bolton Remote公司能为你组织起一支经过审查的离岸承包商队伍。另一家提供商Hubstaff会评估你的项目,然后为你匹配合适的项目专家。使用就业外包服务可以节省你的时间,从而让你不必自己从事招募这一套流程。这些公司一般提供免费的招聘和就业外包服务,但是会从计时工资中抽取一定提成。

杜邦自称“金鹰”,有着独特的,鹰隼般的外形。设计师们想塑造出那个外形,但又不想弄得跟杜邦本人一模一样。

This is the second time that both enterprises and institutions have adjusted basic pension, since the first simultaneous adjustment in 2016.
“Australia stands out as a market that boomed when reform allowed it to switch from a commission-based model to a fee-based one,” says Mr Montanari. “This would be a game changer in Asia.”
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But many foresee an economic collapse, arguing that a prolonged eurozone crisis coupled with a property bubble could render vast swaths of Chinese industry unprofitable. This would reveal hidden financial vulnerabilities and feed a downward spiral. Others believe that Beijing has ample resources to avoid a crisis, but argue that, with a growth model based on infrastructure and land sales, and with exchange and interest rates rigidly controlled, it may not have all the necessary tools at its disposal.
2015年,全球范围发起的233起反倾销案件中,针对金属行业的案件占比达创纪录的46%,几乎全部是针对钢铁行业的案件。
墓地主人的身份依然是个迷。这座墓地曾经被盗过,而且墓地中没有任何的文字记录来表明这些死者的名字以及他们的职位。
adj. 特指的;指定的
On the sales front, General Motors and Ford F -0.13% lost market share to Chrysler, which leveraged its Jeep brand to previously unimagined heights – and then, metaphorically left its heritage behind when it established legal domicile in the Netherlands and changed its name to FCA US LLC.

"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

“He’s informal, candid and approachable,” says Ginni Rometty, chief executive of IBM, who praises him as “very authentic. It’s the hallmark of a modern CEO. What you see is what you get.”
这个触动人心的成长故事完美捕捉了一个人从青少年初长为成年人的甜蜜又苦涩的阶段。

6.Head-Mounted Computer Displays
Their inclusion has come at the expense mainly of European companies, signalling the shift in economic power towards the east. There is only one Indian brand in the top 100 ranking — HDFC Bank. Russian, Mexican and Brazilian brands have fallen out of the ranking in the past few years — a sober reflection of the changing fortunes of these emerging markets.
Despite it being not that different from the typical bottle opener, the BOx does have a nice design made with stainless steel and solid wood.
Obama defeated Romney in a series of key swing states despite a weak economic recovery and persistent high unemployment as U.S. voters decided between two starkly different visions for the country。

TextPride was a fine business, but a tiny one. Meanwhile, the market for messaging apps was exploding. Facebook FB 0.61% bought WhatsApp for $19 billion; that service now has 700 million monthly active users. Tango, an app with 250 million registered users, is worth $1.5 billion. Kik has 200 million registered users. Snapchat, worth $10 billion, has 100 million users. A new study, commissioned by Kik, shows that U.S. users now spend more time on average in messaging apps than they do on social networking apps. The only problem? These messaging apps need ways to make money, and there’s no reasonable way for advertisers to wedge themselves into conversations between friends.
在此次颁奖典礼上,麦肯锡全球董事总经理鲍达民(Dominic Barton)在典礼上还颁发了“布拉肯贠尔”青年商业作家奖(Bracken Bower Prize for young business writers),获奖者为克里斯托弗克利尔菲尔德(Christopher Clearfield)和安德拉什舠尔奇克(András Tilcsik)。他们计划出版的图书将会探索企业如何能够管控发生灾难性失败的风险。该奖项面向35岁以下作者,专门颁发给那些探讨增长所构成的挑战和机遇的商业图书计划,奖金为1.5万英镑。
domestic
Verification and evaluation should be enhanced before publication, Wang said.
"How to tie a tie" was the No. 1 question in 2010, followed by "how to lose weight", "how to kiss" and "how to write a resume."

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

罗宾威格尔斯沃思(Robin Wigglesworth)
approval

CDC

May the bright and festive glow of New Year candle warm the days all the year through. Hoping you will have a wonderful time enjoying New Year that is happy in every way.愿明亮喜庆的新年烛光温暖一年中的每个日日夜夜,祝你欢欢喜喜度新年!
当然,那时候,伦勃朗是大热门。但是如今,这位荷兰画家和他的同辈大师已经过气,不再是收藏家和投资者渴望的对象。

第九步 每天,告诉全世界“别BB了”,其实这样蛮圈粉的
而汇丰银行(HSBC)则表示,上个月该行自己发布的中国制造业PMI指数显示出了制造业停止扩张的现象,从而确认了此前已发布的“预览版”估值。
10.Be Dedicated and balanced
The aspiring actress is also hoping her online following will secure her an audition to appear on ABC show 'Once Upon A time' which is adding Elsa as a character next season.

An ancient Egyptian amulet was uncovered in Jerusalem by a young girl taking part in a family dig in the capital.
It's quite an odd question, because Ireally wanted to start writing when I read lots of Stephen King stories. Hisstories were quite astonishing and interesting.
['greisf?l]
积极扩大有效投资。

此外,他们在毕业后改行的可能性更小。只有30%改行,而全日制MBA学员却有近三分之二改行。
自动驾驶汽车,自拍杆,无人驾驶飞机,触屏设备,电子香烟,喷射背包和许多其他看起来像现代的发明的东西,其实都是老发明。大部分的"发明者"把它们当做新发明,甚至去申请专利。但事实是,这些"发明"已经存在一段时间了。它们都有早期类似的原型,这些早期产品最终没有投入生产,或因为特定原因而限量生产。而有些"发明"得以大批量生产,却因为销售不佳而流产。
Mr Li said the economy’s strength came as a result of the government shunning strong stimulus policies and its push for supply-side reforms.
n. 娱乐
伦敦时装协会的新闻得到了社交媒体人士的支持,他们鼓励设计师放弃使用动物皮草。

The relocation is also part of the integration plan for the Beijing-Tianjin-Hebei cluster, which aims to ease congestion in the capital and achieve more balanced development in the region.
n. 莴苣,生菜,纸币
The gold market may be obsessed about the dollar and prospect of a rise in US interest rates. But there’s another factor looming on the horizon: a fall in gold mine supply.
这些人造耳朵对那些遭受过耳朵伤害或者耳朵停滞发育即患有小耳畸形的人来讲是巨大的福音。
The attitude of the founder will set the tone for the business. Negativity, laziness and entitlement waste time and money while they tarnish your reputation. Success largely depends on making mistakes and accepting blame in stride. Owning up to and facing challenges head-on is what makes a mere business owner a leader.

2011年,她的妈妈梅丽莎(Melissa)报名参加Lifetime频道的真人秀节目《Dance Moms》。
专注于新兴市场的基金集团经历了难熬的一年,安本(Aberdeen)和安石(Ashmore)的资产管理规模都严重缩水。新兴市场交易所交易基金(ETF)也遭遇大规模赎回,ETF.com数据显示,投资者从贝莱德(BlackRock)旗下基金iShares MSCI Emerging Markets以及先锋(Vanguard)富时新兴市场(FTSE Emerging Markets)撤出95亿美元。
Flying during the holidays takes special strategies, which we’ve outlined here. It also means being prepared for significant weather delays, especially in the Northeast and Midwest.
"There are always jobs," Challenger says. "Companies are always hiring. But the competition is much tougher."

Stevens会演唱电影《以你的名字呼唤我》中《Mystery of Love》,以及Bernal, LaFourcade和 Miguel会合唱《寻梦环游记》中的歌曲《Remember Me》。
Dachis says: Kraft took a stance in support of genetically engineered foods midway through the year and the decision turned their brand into an overall loser for 2012.
研究显示,美国已经取代印度成为反倾销和其他贸易保护案件的最大发起国,而中国及其钢铁行业正是美国的最大目标。
上榜理由:2014年世界杯庆典活动
Turkey's Deputy Prime Minister Numan Kurtulmus said Turkish authorities were in contact with those in Iraq.
电影《分歧者》的主演谢琳·伍德蕾为2015全球十大美女的冠军。这位年轻的好莱坞女星在电影《后人》中的演出大获成功。此外,她还入选了《尼龙》杂志“好莱坞青年特辑”评选的“55张未来面孔”。

Variety Talk Series: “Last Week Tonight With John Oliver” (HBO)
Despite the reported success of the Duke and Duchess of Cambridge's official visit to Canada back in September, timekeeping needs to be looked at for future trips.
但是,海外机构投资者表示,随着中国经济增长放慢,香港房地产市场已经过热,正在进入调整阶段。

●Van Full Of Illegals Shows Up To Vote Clinton At SIX Polling Places, Still Think Voter Fraud Is A Myth?
值得注意的是,本年度传播假消息之首的网站域名当属“abcnews.com.co.” 在十一月的一次Verge的采访中,伊利诺伊州大学信息科学学院的Nicole A. Cooke教授引用了一个假新闻网站上的消息,这个假新闻网站使用的是危险和普遍的策略,即域名和真网站看上去只有微小的区别。他们让消息源从第一眼看上去具备真实性。管理abcnews.com.co的人告诉华盛顿邮报,他相信他的网站在特朗普大选期间充当了一个重要的因素。
As of mid-July, there were about 50,000 stores running on Bigcommerce, which have collectively sold close to $4 billon using the platform. The developer has typically added new customers one-by-one. However, a deal it struck in early July with eBay positions its service as the preferred migration path for two Magento products that will be discontinued in February 2015, Go and ProStores. Bigcommerce previously migrated more than 5,000 merchants off ProStores, and the deal could potentially bring up to 10,000 more.
确实,现在的保罗更大更强壮了,但是,现在的他脸蛋和高中的自己一样。在高中的时候,保罗甚至就有了自己标记性的胡须。
Last month scientists at Illinois University made a breakthrough that could herald a second green revolution for world agriculture – they improved the efficiency of photosynthesis, the process by which plants turn sunlight into the biomass that is the source of all our food.