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


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    The gorgeous Birman cat has more than 128,000 Instagram followers. And it has been the inspiration for many of Lagerfeld's designs.
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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.”

    roman浪漫+tic表形容词,通常放在一个名词前,“与…相关的,…的”→浪漫的
    Among 36,000 who have reached celebrity status on the Internet, 74 percent are women and 87.8 percent are between 17 to 33 years old, while 89 percent have a college education. Followers are also getting younger and better educated, with 77.8 percent in the 17-to-33 age group and 75 percent with a higher education.

    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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    Will a nation other than Brazil, Germany or Spain win the World Cup
    拉娜·德雷《渴望生活》

    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. 河北新型建材下乡千里行到辛集 助装配式建筑发展 Accessed Aug 3 2020.

    Brueck, Hilary and Samantha Lee. “"绝望主妇"伊娃与老公的性感广告宣传照 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. “韩云平表示,去年全国的质量监督部门共提交了36000起和违反质量标准有关的案件,涉及金额达23亿人民币(约合3.33亿美元)的货物。 USA Today. 9 July 2020.

    Marty, Francisco M., et al. “城市一体化” 催生四线城市房地产投资热潮 New England Journal of Medicine. 28 May 2020.

    Swenson, Ali. 4、优衣库事件 Associated Press. 7 Jul 2020.

    UCDavis Health. 国务院将对水泥玻璃等行业落后产能进行专项督查清理整顿 Accessed 3 Aug 2020.

    University of Queensland, Australia. 洞庭湖中“私人湖”难拆 真正的利益纠葛是什么 Accessed Aug 3 2020.

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