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


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No students or teachers drank the poisoned water, the report said.
现年60岁的罗斯是位于波士顿的哈佛大学的教授,而89岁的沙普利是美国加州大学洛杉矶分校的教授。
中俄双方经贸合作的潜力很大,互补性很强,双方所达成的经贸关系目标是可以实现的。

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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.”

就业市场面临着挑战。约有500万美国人失业已有六个月之久,技能退化令他们未来更难找到工作的风险也加大。此外,收入增长放缓引发的担忧可能会限制企业招聘。据咨询公司CEB今年10月进行的一项调查显示,约有36%的美国高管预计其公司的职员人数会减少;相比之下,今年夏天这一比例为29%。[qh]
The TV drama is not based on a novel but the story of a real businesswoman Zhou Ying. Born in the Qing Dynasty (1644-1911), Zhou was the richest female entrepreneur in Shaanxi province at that time.

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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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

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Brueck, Hilary and Samantha Lee. “These brands are close to their domestic markets, helping them to gain market share at the expense of global brands, and they are also winning share in new regions, according to BrandZ. 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. “At tech start-up conferences, such as Slush in Helsinki in December, everyone was talking about experiences. The coming year is likely to see a wider adoption of virtual reality, which places the user in a digitally enhanced environment, and augmented reality, which overlays digital information on to the real world, creating new digital businesses. USA Today. 9 July 2020.

Marty, Francisco M., et al. 水泥业迎史上最严减排标准 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. We should stipulate at this point that neither of us have any idea how good this draft is going to be because the college season is barely underway. It sure looks nice, what with all those freshmen stacked up together in the lottery. Associated Press. 7 Jul 2020.

UCDavis Health. 一线楼市排名:“广上北深”取代“北上广深” Accessed 3 Aug 2020.

University of Queensland, Australia. 坚持“房住不炒” 别让房租步房价后尘 Accessed Aug 3 2020.

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