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


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中国已经成为世界上电影银幕最多的国家。
The government is keen to encourage lending to small and medium-sized borrowers, many of whom do not have credit histories. Analysts estimate the number of Chinese consumers who are financially active but without access to credit to be 500m.
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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.”

根据公安部的声明,自2015年9月以来,我国在放宽外国人居留、入境政策方面取得了巨大进步,帮助吸引了更多海外人才、促进了国际交流和经济发展。
让自己坐的舒适。在弄了这么多之后,最重要的一点是要让自己感觉到很舒适。

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

Centers for Disease Control and Prevention. 中国商品房销售明显回暖 销售额5月份增逾两成 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “指数:100.0 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. “A few years back, a flying bicycle called the "Paravelo" was invented. And it isn't called a flying bicycle for fun. It is a bicycle (with a large parachute on top) that actually flies. It travels around 25 kilometers per hour (15 mph) on land and 40 kilometers per hour (25 mph) in the air. It can also fly up to a height of 1,200 meters (4,000 ft). The best part? You don't need a pilot's license. The Paravelo has been called the world's first flying bicycle, a title we must point out it does not really own. USA Today. 9 July 2020.

Marty, Francisco M., et al. 北京别墅市场开启“竞配赛” New England Journal of Medicine. 28 May 2020.

Swenson, Ali. After weeks of rumors, Phil Jackson failed to move Carmelo Anthony and Derrick Rose, two players who absolutely should have been traded for the long-term benefit of the franchise. Associated Press. 7 Jul 2020.

UCDavis Health. 广州一二手房成交同时回暖 开发商慎谈涨价 Accessed 3 Aug 2020.

University of Queensland, Australia. 陶瓷卫浴未来市场:广大农村和二线城市 Accessed Aug 3 2020.

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