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COVID-19 Nasal Swab Test Does Not Cause Risk of Infection


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关注规模较小和私营制造企业的财新制造业PMI下降,而主要关注规模较大和国有企业的官方制造业PMI指数同期出现上升。这种分歧可能表明,比起规模较大和国营的企业,较小的企业受污染限制和其他监管收紧的冲击更为严重。前者还享受国有银行的优惠待遇。
Argentina, the host nation's big rivals, are in with a great chance too. Any team featuring Lionel Messi is going to be in with a shout, but when you add to that the likes of Sergio Aguero, Gonzalo Higuain and Ezequiel Lavezzi, then it's a team with one of the best sets of attacking options in the tournament. Likewise, Uruguay's attacking trio of Luis Suarez, Edinson Cavani and Diegoi Forlan is about as potent as it can get, and is capable of scoring goals against any team in the world, although whethere the rest of their team is strong enough is open to debate.
Mr Erdogan, who has also benefited domestically from the row with Mr Rutte, has sought to broaden his diplomatic dispute to take on all of the EU, particularly Germany, which has had similar run-ins with Ankara over campaigning in Germany’s large Turkish community.

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To help control the spread of COVID-19, the Centers for Disease Control and Prevention has recommended getting a COVID-19 test for people who show symptoms of the disease, have come into contact with someone known to have the disease, or are in vulnerable groups. 

The most common form of testing for the novel coronavirus involves the use of a nasopharyngeal, or nasal, swab. The swab reaches deep into the back of a person’s nose and mouth to collect cells and fluids from the upper respiratory system, which can then be checked with diagnostic tests for the presence of the novel coronavirus known as SARS-CoV-2.

The testing procedure involves inserting a 6-inch-long swab into the cavity between the nose and mouth for 15 seconds and rotating it several times. The swabbing is repeated on the other side. The swab is then inserted into a container and sent to a lab for testing.

Dr. Shawn Nasseri, an ear, nose and throat surgeon based in Beverly Hills who has conducted many COVID-19 swab tests, told us in an email that the nasal swab “follows the floor of the nose and goes to where the nose meets the throat, or naso-pharynx.”

Asked if the swab test is safe, Nasseri said, “Absolutely. The biggest risk is discomfort. The rare person — 1 in thousands — passes out from being super sensitive or gets a mild nosebleed. It’s estimated that close to 40 million or more swabs have been performed safely in the U.S. alone.”

But in recent weeks, viral posts on Facebook falsely claim that the nasal swab test can cause serious health issues. One post says, “The stick deep into the nose causes damage to the hamato-encephalic barrier and damages endocrine glands. This test creates an entrance to the brain for every infection.”

The hamato-encephalic barrier, also known as the “blood-brain barrier,” protects the brain from toxins that could be present in the blood.

Dr. Yvonne Maldonado, a professor of epidemiology at the Stanford University School of Medicine, told us in an email that the Facebook claim “is not true.”

After exhausting all his options, the practical kid decided to tend to his academic responsibilities, not knowing how long it would take before someone finds him.
伦敦——自2002年开设以来,“周六人物”(Saturday Profile)便旨在向《纽约时报》的读者介绍世界各地的人。读者可能从来没有听说过这些人,但他们过着有趣的生活,做过不同寻常的事情,或者刚刚有了一段非凡的经历。

Nasseri said that “it is incredibly implausible, if not impossible, to cross the skull base and blood-brain barrier with a swab unless someone uses a rigid metal instrument and is pointing the metal object 90 degrees in the wrong direction.”

Dr. Morgan Katz, an infectious disease expert at Johns Hopkins University, told the Associated Press that the Facebook posts misunderstand what’s happening when the swab test is performed.

科技:凯迪拉克将在汽车的后视镜添加高清视频功能,其视野要比传统的后视镜开扩四倍,因为它能够在最大程度上减少了车柱和乘客对视线的影响,对于上了年纪的凯迪拉克车主和颈椎不好的人来说,这的确是个福音。下一个即将被广泛采用的技术,则是让汽车在倒车时,能够发出像垃圾车那样的“滴滴声”。
另一名学员表示:这个项目让我的事业获得了巨大飞越,为我在毕业后马上就担任一个战略最高层管理职位做好了准备。
进入前五强的还有桑德拉·布洛克(Sandra Bullock),是我们榜单中仅有的两位女演员之一(另一位是排名第十的詹妮弗·劳伦斯)。布洛克出演了两部电影题材迥异的热门影片:《地心引力》(Gravity)是一部紧张刺激的惊险片,有望使她再次获得奥斯卡提名;而《辣手警花》(The Heat)则是一部票房成绩不俗的喜剧片,全球票房收入达2.3亿美元。

Editor’s note: FactCheck.org is one of several organizations working with Facebook to debunk misinformation shared on social media. Our previous stories can be found here.

Sources

Centers for Disease Control and Prevention. 楼市回暖明显 全年楼市成交面积都增长4成以上 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “Foreigners with permanent residence enjoy the same rights as Chinese citizens, such as in investment, housing purchases and schooling, among other rights. Business Insider. 15 Apr 2020. 

Dr. Shawn Nasseri.  Ear, nose and throat surgeon. Email exchange with FactCheck.org. 3 Aug 2020.

Dr. Yvonne Maldonado. Professor of epidemiology, Stanford University School of Medicine. Email exchange with FactCheck.org. 3 Aug 2020.

Fauzia, Miriam. “the truly embarrassing press conference from Vlade Divac, the leaks of Vivek Ranadive's lust for Buddy Hield, and the failure to sell off a host of spare veteran roster parts that theoretically could have been turned into picks. USA Today. 9 July 2020.

Marty, Francisco M., et al. 在非洲卖建材是种什么体验? New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 谁会与一位王室成员击掌呢?尽管他年龄不大。 Associated Press. 7 Jul 2020.

UCDavis Health. 时评:一二线房价继续上涨与股市低迷资金流出 Accessed 3 Aug 2020.

University of Queensland, Australia. 武汉启用新存量房买卖和居间合同 Accessed Aug 3 2020.

U.S. National Library of Medicine, National Institutes of Health. “The Blood-Brain Barrier.” Accessed Aug. 4, 2020.