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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

炼钢成本坚挺钢市或继续上扬 新一轮涨价有可能到来

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 品牌化发展成家居业突破口 the quarantine period, and its counterpart organizations do so abroad, all in concert with the World Health Organization.

Jobs for photographers grew by about 22 percent in Q3. The report’s authors attribute the increase to employers “finally understanding the importance of high-quality pictures on their landing pages.” The desire to expand and improve websites through employing trained, creative professionals was something of a recurring theme throughout this list.
Izabella Kaminska

“The employee submitted a message through the company web site.”

大小:3073平方英尺(约286平方米)
2.听觉矫治专家
就业增长超出预期;
“一个员工离开时留了张便利贴,上面写着他走人了。”
Mr Karl added: “We would have likely had a record [year] even without El , but it pushed it way over the top.”
il不+legal合法的→不合法的
At present, 15 Chinese cities allow a 72-hour visa-free entry for nationals of certain countries. Shanghai, Jiangsu and Zhejiang offer 144-hour visa-free stays for international transit passengers from certain countries.
“我们为最佳影片奖颁奖通告期间出现的失误,向《月光男孩》、《爱乐之城》、沃伦?比蒂、费?唐纳薇、以及奥斯卡奖观众表示诚挚地道歉。颁奖嘉宾收到的是错误奖项的信封,这个失误一经发现立刻得到了纠正。”

"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

Late last year, the World Health Organization declared that Zika virus was no longer a global emergency. But the disease’s effects on babies who may live for decades are only beginning to be understood. In northeastern Brazil, where links between the virus and birth defects like microcephaly were first detected, families struggle to give the best lives possible to stricken babies. Researchers hope to find clues about the virus’s effects on the fetus by studying pairs of twins in Brazil in which one was born with birth defects and the other was not.
[di'zain?]

Rafael Corrales, a partner at Charles River Ventures, believes that the growth in a wide range of fields—from academia to infrastructure to policy—is a sign that 2014 was the biggest year bitcoin has had yet, despite its volatility. “In the short-term, that’s an easy knock from people who don’t understand or believe it can be something,” he says. “It’s the easiest thing for them to go after. In that transition stage, you’re going to have extreme volatility, so looking at its value over one year is kind of silly.” As for occasional hacks, he adds, “There are going to be bumps in the short term, but they’ll be solved sooner than later. And these things are being addressed by a huge community of people. So you have to be really excited, despite small bumps.”
She made several points in a note to clients Tuesday that struck me as new:
Stand: Starbucks CEO Howard Schultz urged the end of government shutdown
As a measure of that fall, 10 works have sold at auction for more than $100 million since 2004, and all of them were made by modern or contemporary artists in the past 120 years. Older paintings have seen their value, in relative terms, level off or decline. The trend was plain to see in recent weeks, as London’s auction houses tried to find buyers for their latest tranche of old masters. As has been the case in recent years, there were few works by major names.

想要改善自己的生活,而不只是学业,最好的方法之一就是冥想。每天花上十五分钟,静下心来,集中注意力并充满自信。
这表明,一般而言,大学教育从长期看来收益良多。
adj. 浪漫的
Until now Thor has been the neglected child of the Marvel Cinematic Universe. Though some liked Kenneth Branagh’s first film featuring the god of thunder, Chris Hemsworth was arguably overshadowed by Tom Hiddleston’s preening popinjay of a villain, Loki. And the second film, the humourless Thor: The Dark World, is widely regarded as the worst film released by Marvel Studios to date. So to inject new life into this sagging franchise, Marvel brought in New Zealand comedy auteur Taiki Waititi to add some Kiwi quirk. This time Thor faces down the goddess of death, played by Cate Blanchett. Thor may have the hammer, but she has the attitude. Released November 1 in Serbia and Hungary, November 2 in Cambodia and Israel and November 3 in India and Canada. (Credit: Marvel Studios)
Spending on medicines in "pharmergingmarkets" will rise more than 50 percent over the next five years, ThePharma Letter said, citing IMS.

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

好莱坞的明星们早已着手准备了数周,尤其是对于去当地南瓜地挑选一些南瓜这样的事来说。
Many analysts may be surprised at the suggestion that they have underplayed the Fed. The two factors most often cited in relation to EM assets these days are the Fed and China, and the risk that they will deliver a negative shock.

CDC

She says she noticed the similarities between her and the Disney character when she first saw the film in December, calling the experience eerie.
It was 8.9% in 2015 and 9.9% in 2014. The expenditure accounted for 2.11% of last year's total GDP, compared with 2.06% in 2015.

不要误以为最后时刻的风平浪静就意味着截止期限前的动作是平淡无奇的:
《速度与激情6》帮助其另外两位男演员在我们榜单中获得较高的排名:范·迪塞尔(Vin Diesel)和已故的保罗·沃克(Paul Walker)。迪塞尔以8.87亿美元位居我们榜单第四。《速度与激情6》在全球斩获7.89亿美元的票房。仅仅几个月之前,他出演的《星际传奇3》(Riddick)在各大影院上映,仅收入9,800万美元票房,不过,这也足以使迪塞尔的排名领先于他的搭档沃克。
2013年,公开表示移民改革对大公司有利的公司高管并不是只有可口可乐CEO穆泰康一人。
n. 检查,视察

有效率的老板必须是有效率的决策者。他或她在每个小的决定上不能有半点犹豫。要能快速精准的做出决定----对以后的结果承担责任(请看第二条)----这是很重要的商业技巧,特别是在管理他人的时候。
公众宗教研究机构与宗教新闻通讯社联合开展的这项调查显示,不同政治派别和不同宗教信仰的人们对于恶劣天气的观念存在分歧,今年已经发生了多起严重的高温和干旱灾害。
老虎要入眠,鸟儿要降落;
如果你是一个腼腆的人,那么一开始坐在前排可能会让你有点不自在。但是,我向你保证,这是接受老师传授的内容的最好的办法之一。你也可以听得更清楚。不用伸长脖子,你就可以看到黑板上所有的内容。

首先,正如咨询与培训机构RedPrairie公司的供应链专家汤姆?科赞斯基所言,一提到物流行业,多数人都觉得它“没有吸引力”,是一项乏味且薪水不高的仓储工作。
You're right to be paranoid. The company is always watching you, and there's a record of everything you do: every phone call, every text, every tweet and instant message. At most companies, they save that data forever.
protection
At a time when the overall stock market is idling with the parking brake on, Tesla shares are on a tear. Since the beginning of the year, they have risen 80%. Currently at $262, the stock is selling at close to its all-time high and has a market cap of $32 billion.
Mass entrepreneurship and innovation

Comic skit “Big City Small Life”(Wang Ning, Chang Yuan and Ailun)
China saw its population grow last year, along with an improved male-female ratio and the level of education, according to a survey from the National Bureau of Statistics that was released on last Wednesday.
200911/88510.shtml
别提什么至少提前两周通知公司,精心安排一次离职面谈,在卷铺盖走人前费尽心机跟人搞好关系了。有些人在离职时太过匆忙,根本顾不上这些套路。
因为中国严格的政策,该内衣品牌的几位最有名的模特无法出席今年最重要的活动,上周吉吉·哈迪德就在推特上表示她不会出席此次维密秀。

“The Man Who Knew is an impressive work of scholarship,” Lionel Barber, editor of the FT and chair of the book award judges, said. “It’s a masterpiece of political economy and, above all, it’s a great and enjoyable read.”
单词calendar 联想记忆:
NeXT 电脑公司总裁兼CEO史蒂夫乔布斯在向公众展示他的新一代NeXT 工作站(此时乔布斯已经离开苹果创办了皮克斯动画和NeXT 电脑公司),1990年9月18日,旧金山
That an iPhone mini and a LTE license from the Chinese government this year or next could finally persuade China Mobile (CHL), with 700 million subscribers, to cut a deal with Apple.

6. Make a plan.
Horowitz, speaking to radio station RTE, said he was keen to keep the new Bond true to the 1950s creation.
vt. 抵押
谎言4:太感谢了!我很喜欢!说谎原因:告诉别人他们送的礼物一团糟会让我看起来像是冷血的混蛋。
[ni'glekt]
“Insead enormously boosted our intercultural experience,” said one alumni survey respondent from Switzerland. “It is a place to learn global culture better than anywhere else.”

South Africa's leader Jacob Zuma got a 4% raise in March, but his salary in dollar terms has actually dropped compared to last year, because of the fall in the south African rand.
Summly发布后,达洛伊西奥获得了苹果(Apple)的称赞,该应用跻身2012年最佳iPhone应用之列。交易完成后,Summly昨天被撤下App Store,此时它的下载量已达近100万次。
它轻便易折叠,适合携带出行。

The full list of this year's honorees follows.
[s?'plai]
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)。
这种现象部分原因可能来自人民币汇率总体的疲软,原因是这会令境外的商品变得更加昂贵。今年1月人民币汇率下跌了1.3%,而在2015年最后一个季度人民币贬值了2.2%。不过,中国的出口仍未因人民币贬值而受到提振。
adamant