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


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节目7 歌曲《春暖花开》,那英
Kate Winslet is another Brit who’s opted for the loo for her best actress Academy Award, which she was awarded for her complex role as a concentration camp guard in the 2008 adaptation of Bernhard Schlink’s novel, The Reader.

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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.”

愿你拥有新年所有美好的祝福。
尽管每轮市场反弹最终都呈V形,每次连续的涨势中,个股的参与越来越少。今年春夏两季的绝大部分时间里,时事分析评论员们都专注于赢家与输家、大盘股和小盘股之间的明显差异。欧洲的通缩担忧以及日本的技术性衰退,使得分析师们愈加困惑,尽管美国经济正在好转,美国国库券收益率和通胀指标却双双下行。

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.

If you have a question, come to my office. Don't corner me in the bathroom.
他会在自己的独唱专辑中尝试什么样的歌曲呢:《Sweet Creature》(《可爱的人儿》)和《Ever Since New York》(《自从来到纽约》)是温馨的原声抒情歌曲;而在《Kiwi》(《奇异果》)这首歌中,他大声地炫耀着自己的欢乐;《Two Ghosts》(《两只幽灵》)则是一首为分手而惋惜的歌曲。
5. The top 300bureaucrats will rally behind Xi’s reforms and these bold new programs, backingthe central government while bringing these ambitions to their provincialgovernments and setting parallel growth goals at home. Detailed plans forreform and accelerated growth will be set, and then promptly executed, ingeographies across China. We expect the tier three and four markets torally again this year, growing faster than tier one and two cities.

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. 家装行业猫腻多:低价全包变身“加价全包” Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “Foss 还指出别人的推荐信有时间标记。如果你一周之内有五个新的赞那样看起来会很可疑,这些赞不像是真心的,好像你在刷好评,让别人说你好。 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. “例如,美国和亚洲向投资者推介产品的方式存在明显区别。在亚洲,很大比例的基金(一些人估计为90%)是以佣金为基础。这对ETF不利,因为它们在股票交易所公开交易,在结构上不便向可能推荐它们的银行、券商或理财顾问支付佣金,这与该地区的共同基金行业不同。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 浙江前三季度住宅售价涨幅创5年新高 杭州最火 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. The pair came out with a spree of punch lines, dishing them around the Beverly Hills Hilton, much to the delight of its starry audience. Mr. Damon, Meryl Streep and, naturally, Mr. Clooney were among the targets. Ms. Fey particularly had the crowd roaring with a description of 'Gravity,' which stars Sandra Bullock and Mr. Clooney. Associated Press. 7 Jul 2020.

UCDavis Health. 希凯参加2013中国国际陶瓷工业技术与产品展览会 Accessed 3 Aug 2020.

University of Queensland, Australia. 部分城市库存下降 四季度有望推升市场成交规模 Accessed Aug 3 2020.

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