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


Quick Take

去年12月份达成的预算协议很难称得上是华盛顿激辩多年所希望看到的、能够提振信心的协议,但至少它为华盛顿不断上演的政治博弈按下了“暂停”键。在过去三年中,华盛顿每年都会上演的这种博弈对经济的复苏构成了威胁。
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"If it (transforming the economic development mode) only results in empty talk instead of being implemented, then economic development cannot be promoted in a sound and rapid way, and may even not be sustained." LI YIZHONG, member of the CPPCC National Committee and former minister of industry and information technology

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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最不守时奖

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.

A cheery New Year hold lots of happiness for you!
Western states dominate the best states for projected job growth. Only two, Florida and Georgia, of the top 10 are located east of the Mississippi River. Rounding out the top five are Colorado (2.6% annual projected growth), North Dakota (2.5%) and Florida (2.5%).
“温家宝总理强调指出,中国有效应对了全球金融危机的严重影响,经济保持稳定快速增长。因此中国成为全球第二大经济体,在五年内GDP几乎翻番。”Luis Schmidt Montes, Chilean ambassador

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. “质造”房地产新生态 去年求稳今年“归稳” Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “《量子破碎》 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. “DNA from the bones matched that of descendants of the king's sister, while the skeleton had the twisted spine and battle injuries consistent with contemporary accounts, said researchers from the University of Leicester. USA Today. 9 July 2020.

Marty, Francisco M., et al. 四川依法开展建材抽检 确保灾后重建安全 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. Tesla has an order backlog of $226 million. At the production run rate of 1000 cars a week expected at the end of 2014, that translates to a 30-week backlog. Associated Press. 7 Jul 2020.

UCDavis Health. 销售每况愈下 成都现红木家具卖场关店潮 Accessed 3 Aug 2020.

University of Queensland, Australia. 沪置换型二手房成交低迷 连环交易大多中断 Accessed Aug 3 2020.

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