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


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The FT European Business School Ranking 2016 measures the quality and breadth of schools’ postgraduate programmes. It is based on their performance in the five main rankings published by the Financial Times each year: MBA, Executive MBA (EMBA), Masters in Management (MiM) and the two rankings for executive education. Only schools that take part in all five are eligible for a full score.

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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.”

The dollar value of China’s exports fell markedly more than expected last month and import growth more than halved, while revisions to November data erased what had appeared to be a long-hoped-for return to growth for outbound shipments.
The data showed that Samsung took the top spot, followed by Apple in second place. Even so, the shipments of the two top tech giants declined respectively by 3 percent and 7 percent, demonstrating decreased global market shares.

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.

The joint Sino-American programme delivered by the Hong Kong University of Science and Technology and Kellogg School of Management has returned to the top of the Financial Times ranking of the best 100 MBAs for senior executives.
雪莉·巴赛为007系列电影演唱了两首名曲,这是其中之一。从某种程度上来说,007系列电影一直讲述的是心愿达成的故事。观众在享受剧情的同时,耳旁听着最棒的歌手用强有力的声音唱着关于贪欲的歌词,真是恰到好处。所以无论你对这部电影抱有何种看法(尽管这不是007系列最佳电影之一),巴赛拥有上好的素材,创作了让人眼前一亮的歌曲。
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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. 2015上半年家居建材企业的奔跑行程记录 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “Premiered on Jan 29, the drama received 7 points out of 10 on the country's popular review website Douban. 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. “3. Jia Junpeng, your mom wants you to go home for dinner.” USA Today. 9 July 2020.

Marty, Francisco M., et al. 一线城市楼市弱平衡:京沪楼盘降价广深探底 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 其中涉嫌售假的占比近45%,同比去年上升18.2%。消费者差评、频繁退货、投诉案例也很多。部分商家通过虚假低价的商业陷阱来促销商品。 Associated Press. 7 Jul 2020.

UCDavis Health. 报价走高 挂牌量持续滑落 南京二手房市场 似乎也在放“暑假” Accessed 3 Aug 2020.

University of Queensland, Australia. 北京2018年居民人均可支配收入超6.2万元 Accessed Aug 3 2020.

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