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


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当你和他/她在一起的时候,你看不见周围的所有人,你的眼中只有他/她
招聘经理看错了简历。
New year’s events can be anticlimactic. Not so in China where stock markets began 2016 with enough excitement to make traders choke on their bubbles: Shanghai stocks dropped 7 per cent on Monday, Shenzhen more than 8 per cent. It could have been worse. A new mechanism that suspends trading after a drop of 7 per cent halted play early — in this instance, by an hour and a half.

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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.”

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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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China hopes that the Asia-Pacific region will be one that enjoys order and stability, a region that is able to work out issues through consensus-building consultation, properly manage differences through dialogue and has the wisdom to resolve differences.
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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. 全国房租连涨45个月 北京社区商铺房东不敢涨价 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “单词mortgage 联想记忆: 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. “Although the original book got 7.9 out of 10 on Douban, the TV version only got 5 for its poor adaptation. USA Today. 9 July 2020.

Marty, Francisco M., et al. 山东大规模减税降费,今年减负规模将达1300亿以上 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 冲击奖项:自从在特莱瑞德电影节首映以来,奥德曼一直就是最佳男主角奖项的宠儿。 Associated Press. 7 Jul 2020.

UCDavis Health. ?新版个税法教育、住房等支出可税前扣除 专家:相当于提高起征点 Accessed 3 Aug 2020.

University of Queensland, Australia. 《大数据下的厨卫消费行为趋势研究报告》首发 Accessed Aug 3 2020.

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