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


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哈佛大学连续16年位居榜首,斯坦福大学和剑桥大学仍分别位列第二、第三名。
In news that should come as little surprise to global air travelers, Singapore's done it again.
调查指出,关键的是,世界的不稳定性和冲突可能继续推动通货膨胀并影响某些城市的生活成本。

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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.”

5. Gross warns: 'Ponzi Scheme! Tipping Point! Credit Supernova!'
Nigel Farage, former leader of the UK Independence party, has not advanced so far because it has proved harder to capture the UK’s party-based institutions than it is the US presidency.

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.

此外,今年有66位40岁以下的富豪入选,创下了该榜单的记录,诺依曼,希伯尔曼和夏普三人位列其中。
但是,权先生警告年轻人在欲进行手术时应三思。
新晋的富翁包括第一位以戏剧制作人身份进入榜单的卡梅隆·麦金托什,WeWork的亚当·诺依曼和米格尔·麦凯尔维,以及图片分享网站Pinterest的创始人本·希伯尔曼和埃文·夏普。

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. 门窗企业O2O变革的关键的“四个要素”是什么? Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “然而,3月份以17美元的发行价上市的Snap,在最初上涨后下跌至约15美元,打击了市场对于所谓“十角兽”企业(通过私人筹资达到100亿美元或更高估值的公司)会有更多IPO活动的预期。 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. “By investing deep in the industrial fabric of the country, from the coastal cities of Tianjin and Shanghai to the new industrial frontiers of the Western provinces of Shaanxi and Sichuan, from the processing of rare metals to the manufacturing and assembly of complex aircraft parts, China is adding substance to formand showing the world that, as far as its commercial aerospace achievements are concerned, the best is yet to come. USA Today. 9 July 2020.

Marty, Francisco M., et al. 投资热蔓延卫浴业: 环保 健康 绿色成三条主线 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 沃伦·巴菲特自2014年以来再次排名第二,净资产由去年的608亿美元增加到756亿美元。 Associated Press. 7 Jul 2020.

UCDavis Health. 包头:2批次木门木地板甲醛超标 4批次灯具有漏电着火风险 Accessed 3 Aug 2020.

University of Queensland, Australia. 2019年新型城镇化建设重点任务明确 Accessed Aug 3 2020.

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