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


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学校依赖于多种多样的技术,确保授课的活泼和互动性,包括虚拟课堂、直播授课以及多媒体教学资料。校友们被要求对授课质量进行评价,并说明在线考试的效果如何。结果令人鼓舞。在线授课质量似乎越来越好。在线授课所有方面的得分都比前几年高,这表明学员满意度提高。
Sun said he tried to pry open the elevator door, but dismissed the idea and instead leaned against the wall concerned there could be a malfunction that would send the elevator in a free fall.
“还有大批人没有统计进来,”胡润对英国《金融时报》表示,“两周前我在北京拜访了这家投资公司。一下午的时间,我就发掘出了30个登上今年富豪榜的人。他们去年还不在我们的视线内。”

Full Story

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.”

你可能希望分享这些文章的人是出于开玩笑,我也是这么想的。但是我们不能:这个分析指出,通过一个近期的BuzzFeed和Ipsos的公众事务民调显示,75%的美国人(84%的共和党人以及71%的民主党人)很容易就被假新闻的标题所欺骗。这是关于真实性调查、理性思维、扎克伯格的自我意识的梦幻一年。
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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.

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Internet tycoons had heated discussions on the promise of artificial intelligence (AI) following the historic victory earlier this month for Google Inc's AI-powered AlphaGo over South Korean Go master Lee Se-dol.
Inside Obama's Chicago campaign headquarters, staffers erupted into cheers and high fives as state after state was called for the president。

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. 上半年北京房地产市场豪宅项目呈现井喷之势 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “胡润研究院称,只有资本净值超过80亿元的女性才有资格入围中国女富豪榜前50名。 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. “For now, most of the activity around bitcoin is monetary in nature, so it makes sense that its critics point to volatility. Though the value of one bitcoin in U.S. dollars has fallen 67% in the past year, its value over the past two years is up 1,879%, according to the market price chart at blockchain.info. So whether it’s a good investment or a bad one is a matter of perspective. USA Today. 9 July 2020.

Marty, Francisco M., et al. 房地产税法拟5年内提请审议 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 替代燃料:自从柴油车于上世纪50年代从欧洲进入美国以来,人们对柴油车的热情首次冷却殆尽,取而代之的是马力高得吓人的雪佛兰CamaroZL1(580匹马力),和707匹马力的道奇挑战者SRT地狱火等车型。另外,续航里程更长的燃料电池汽车也开始登上舞台,从电池动力汽车那里抢走了不少风头。 Associated Press. 7 Jul 2020.

UCDavis Health. 人民时评:答好经济发展新考题 Accessed 3 Aug 2020.

University of Queensland, Australia. 财政部部长:今年的减税总额预计将超过1.3万亿元 Accessed Aug 3 2020.

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