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


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“不能再采取某些国家先行动,其他国家随后行动的策略,因为时间不多了,”奥斯陆国际气候与环境研究中心(Center for International Climate and Environmental Research)的科学家格伦·P·彼得斯(Glen P. Peters)说。他也参与了这些新数据的编制。“现在需要大家齐心协力。”
“If you were going to be betting, you would bet its going to be warmer than 2015,” said Mr Karl.
Overall twenty-eight thousand bombs and other munitions were exploded over Yugoslavia a country the size of Ohio. William Cohen then secretary of defense characterized Allied Force as “the most precise application of airpower in history.” Some five hundred civilians died in the bombing a remarkably low number for such a high number of munitions expended. In its own account of the campaignNATO stresses that targets were “carefully sexted” and that “massive effort was made to minimise the impact of the air campaign on the Serb civilian population.”

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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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Apple was the only top five PC maker to see shipments grow last year, up over 6%, while Acer saw the biggest fall, of more more than 18%.

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.

法律
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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. “取暖季”限产倒计时 供需天秤测钢铁苍穹 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “如果他赢得初选,他将与59岁的共和党第一届州长菲尔·斯科特对决。 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. “今年,纽约市公寓的平均售价突破了100万美元(约合人民币623万元),这是一个影响深远的里程碑。随着城市人口的激增,错过了上一轮楼市繁荣期的社区,都见证了房价和楼盘数量的增长。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 人社部:中央调剂基金具体实施办法近期出台实施 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. Blige will perform "Mighty River" from "Mudbound," the Oscar-nominated song she co-wrote with Raphael Saadiq and Taura Stinson. Blige is also nominated for best supporting actress for her role in "Mudbound." She is the first person to be nominated for both a performance and an original song in the same year. Associated Press. 7 Jul 2020.

UCDavis Health. 北京高端二手房成交连月上涨 业主报价两极分化 Accessed 3 Aug 2020.

University of Queensland, Australia. 银川市探索土地托管促“节本增效” 资金压力和人才短缺日益凸显 Accessed Aug 3 2020.

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