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


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比利时和乌拉圭这两个袖珍之国因为包容性最大限度地增强了自己的实力,巴西、阿根廷、西班牙和德国这四个本届杯赛的夺冠大热门肯定会对他们特别小心。他们将会是有力的提醒,告诉世界小国家通常也能一击致命,就像巴西本土的小动物蚊子和蝎子一样。
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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.”

民粹主义的兴起(即使在美国和英国这样的就业人数众多的国家也是如此)使得政客们认识到,就业的质量和数量同等重要。
愿新年的烛光带给你祥和与喜悦,祝你新年充满爱。

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.

本田执行副总裁里克o斯考斯特克在一项声明中表示:“我们已经解决了这一问题。本田已经在早期预警报告中采取了一些重大举措来解决过去的缺陷问题,现在我们将更进一步,加强这些举措。我们将继续与国家公路交通安全管理局充分合作,提高透明度,改进报告工作。”
普京在国际记者年度新闻发布会上表示,他准备和任何一位当选的美国总统合作。
《财富》美国500强公司苹果(Apple))已宣布,将从现金中拿出300亿美元用于股票回购。这个消息让投资者很高兴:股价暴涨,甚至在消息发布一周后,这只股票相对于标准普尔指数在这7天上涨了12%。苹果有一项规模更大、总额高达1300亿美元的资本回报计划,将一直延续到2015年,而这些回购就是这项计划的一部分。

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. 方大集团拟收购三企业60%权益 加码LED照明 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “The year before, Taiwanese anti-China protesters chose the sunflower as the symbol for their cause. 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. “影片评价极高,演技也大获好评,尤其是故事的主人公——那些孩子们,以及汽车旅馆经理的扮演者威廉?达福。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 恒指收涨0.5% 券商、保险股集体上扬 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 单词flimsy 联想记忆: Associated Press. 7 Jul 2020.

UCDavis Health. 全球避暑城市名城百佳榜单出炉 贵阳昆明入前十 Accessed 3 Aug 2020.

University of Queensland, Australia. 房价明显低于市场价 是捡漏还是陷阱 Accessed Aug 3 2020.

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