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


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其次,麦克德莫特是一名职业生涯三分命中率39.9%的投手,解决了雷霆阵容最大的一块短板——拉塞尔-威斯布鲁克周围缺乏投手,而且他直到下个赛季结束都是便宜的新秀合同。
They will get more creative in 2018, including on non-cash benefits. Bank of America, for example, has just introduced a programme allowing employees of the global banking and markets unit to take a sabbatical — on full pay — for up to six weeks in a year. There are conditions: people must have been with the bank for at least a decade, and can request the time once every five years, to a maximum of three. But in a memo circulated this week, seen by the Financial Times, chief operating officer Tom Montag urged eligible employees to consider it.

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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 continued, albeit slower growth in prices tracks with recent data showing real estate investment ticked upward in October and sales had registered barely any negative impact from the new restrictions.

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.

科学家上周五发表报告显示,去年是自1880年记录开始以来,地球上最热的一年,对温室气体排放失控的危险发出了更强的警告,削弱了反对气候变化者认为的全球变暖已经停止的观点。
China's best performances by subject this year come from Tsinghua University, with three top-10 places, and Peking University, with two top-10 places. Tsinghua University finishes eighth in both Architecture/Built Environment and in Engineering (Civil and Structural). Tsinghua comes in 10th place in the world's Materials Science subject rankings.
审校:赵倩 来源:前十网

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. 各地税务机关积极开展便民办税春风行动—— 创新举措促减税降费落地显效 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “The annual rich list of China's movers and shakers gives a temperature check on where money is flowing in China, and underlines the growing financial muscle of the country's super-rich. 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. “7) Let Me Play Devil’s Advocate: Looking for a subtle way to critique? Turn the conversation into an exercise where you’re a detached party performing a function: Poking holes in the logic and plan of attack. You use this strategy to stress test ideas without making the process personal. USA Today. 9 July 2020.

Marty, Francisco M., et al. 国家政策扶持 智能家居再迎发展契机 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 公司:网络投票公司Everyone Counts Associated Press. 7 Jul 2020.

UCDavis Health. 家居品牌假日促销常态化 商家不敢再玩“假促销” Accessed 3 Aug 2020.

University of Queensland, Australia. 顺德家具出口连续7个月增长 欧盟为第一贸易伙伴 Accessed Aug 3 2020.

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