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


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And, at random, some other highlights from the list:
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清华大学是国内表现最好的大学,有三项学科的排名进入全球前10。北京大学则是有两项学科排名挤入前十。就清华大学而言,建筑/建成环境和土木/结构工程学均排名第8,材料科学排名第10。

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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.”

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The unexpected drop in 2013 came in spite of new policies--such as the city's 72- hour visa waiver for transit passengers--that were introduced in an attempt to nurture China's tourism industry.

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.

BAD SPORTSMANSHIP
France, one of the most visited countries in the world, ranks No. 9 overall. It is No. 2 in Cultural Influence and No. 6 in Power.
U2乐队主唱波诺、主吉他手"刀刃"和蒂娜·特纳联手合作,共同完成了这首最狂野的007电影主题曲。你会被这首歌的演唱者吸引,并且愿意为她做任何事情。在电影《黄金眼》的主题曲中,蒂娜·特纳在《黄金眼》里面所展现的性感是我们一生都无法企及的。007系列电影主题曲从未如此甜蜜性感,好似歌曲里注入了性激素。

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. 租房平台引入“Uber模式” 平安6亿杀入租房市场 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “4. 詹妮弗-安妮斯顿 2100万美元 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. “农业原材料,特别是所谓的软性大宗商品,例如糖、咖啡和棉花,今年的表现在最佳之列。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 城乡融合发展有了崭新路线图 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. IFAD的政策顾问、这篇报告的作者佩德罗·德·瓦斯孔塞卢斯称:“这确实是一个全球性的现象,由于缺乏机会,人们不得不背井离乡,出门打工养活家人。” Associated Press. 7 Jul 2020.

UCDavis Health. 海外新兴LED照明市场崛起 “低门槛”如何吸引中国LED企业? Accessed 3 Aug 2020.

University of Queensland, Australia. 业内:房价至少再涨五年 一线城市仍地价将涨 Accessed Aug 3 2020.

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