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


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8月24日
According to government sources, property sales in Hong Kong fell almost 40 per cent in the first half of the year compared with the same period in 2015 — both in terms of price and volume. An index from the Rating and Valuation Department released this month showed the commercial sector was a particular casualty, with prices falling 5.7 per cent in May compared with the same month last year.
奥巴马赢得了第二场辩论挽回颓势。虽然他也赢得了第三场,外交政策并不是选民关注的主要问题,这不大可能导致较大的选票波动。

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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.”

“A worker sent a text to a colleague saying he was quitting and asked her to forward it to management.”
一定要展现自己过人的智慧,努力地表现出心神不定的样子。把那些社交技巧抛到脑后吧!

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.

对两者而言,反对派是敌人而非观点不同的同胞。
发布日期:2015年
提到MeToo行动,麦高恩说:“他们都是混蛋,不是冠军,一群失败者,我不喜欢他们。”

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. 原料价格上调 或致家居建材行业进入“分化期” Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “萨默塞特?毛姆(Somerset Maugham)曾形容法国里维埃拉(French Rivier)为“阴暗人物的阳光之地”。环视着酒店大堂里的“模特”,带着黑超的男人们似乎与他们相识,我似乎理解了毛姆。戛纳华丽的外表下有着其并不光彩的一面,就如湛蓝的海水下垃圾成堆。电影节开幕前,法国潜水员,同时也是环保人士的Laurent Lombard(劳伦?隆巴德)拍摄的戛纳河床沉积着大量垃圾废物的视频被疯传。我们被告知在此游泳并无危险。据《每日邮报》报道,市长已下令清理。但是小镇确实不再那么闪耀迷人了。 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. “Manal al-Sharif is best known for challenging laws and mores that keep women down in her native country. USA Today. 9 July 2020.

Marty, Francisco M., et al. 住建部:推绿色农房建设,鼓励绿色建材下乡 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 经销商:经销商们正在努力精简购车的文书手续以及时间。这会使他们留出更多的时间向消费者推销延长质保、喷漆、织物保护、防锈等附加服务。 Associated Press. 7 Jul 2020.

UCDavis Health. 高起点规划高标准建设高水平管理 促进城市功能和品质全面系统提升 Accessed 3 Aug 2020.

University of Queensland, Australia. 南京去年新房卖了6.2万套 个别板块“一房难求” Accessed Aug 3 2020.

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