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


Quick Take

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8. Jessica Gomes
实际上,1至10月份的增速小幅升至8.3%。该指标大致反映了长期支出。

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.”

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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.

对比特币投资者而言,新一年的开头并不吉利。
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国家统计局最近开始跟踪研究的大城市的房价数据就支持这种可能性。

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. 泉州成为我国援非建材的主要产地 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “o 特斯拉的规模越大,运营的复杂性就越强。由于它直接销售给终端顾客,免去了特许经销商的环节,它必须开发一个自己的服务中心网络来进行售后维修保养。另外它独特慷慨的保修条款规定,车主在使用三年后,可以以原价50%的价格将车卖还给特斯拉。这种做法可能会催生一个二手特斯拉的专门渠道。“寻找阿尔法”上的一位博主写道:“等到车主觉得他们的车不像一年前那么诱人和罕见,特斯拉可能会吃进大量有三年车龄的二手车。在我看来,这是个潜在的麻烦。” 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. “简而言之,C型人格的人是完美主义者, 始终如一,永远不会违反规则。 与A型人格的人不同的是,C型人会花时间处理细节,经常反复检查工作是否准确。他们往往是深思熟虑的人,喜欢了解自己工作和生活的每一个细节。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 房山红色旅游助推乡村发展 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. In the first 10 months of the year, Chinese exports to the US were up 5.2 per cent from the same period in 2014, while exports to countries in Asean were up 3.7 per cent, according to Chinese customs figures. Associated Press. 7 Jul 2020.

UCDavis Health. 佛山成立首个陶瓷商业合作社 小微企业期抱团发展 Accessed 3 Aug 2020.

University of Queensland, Australia. 发展住房租赁市场特别是长期租赁 Accessed Aug 3 2020.

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