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


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节目32 歌曲《给我你的爱》,张杰 林宥嘉
舒尔茨在星巴克网站上发表了一封信,信中写道:“据我所知,一些公司领导人也对我们保持相对沉默以及我们代表民众要求政府首脑采取行动所产生的影响感到担心。”
举例来说,新浪微博就一直提供推特所不具备的一些功能,尤其是评论功能,让众多用户得以在别人发表的微博下发表自己的见解。拥有逾7亿用户的腾讯QQ即时信息服务也有众多附加功能,比如可以让用户改换形象的“皮肤”,同时QQ还是腾讯为其他产品和服务做广告的渠道。新浪拒绝置评。

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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.”

时间:2009-10-21 编辑:sunny
China purchased 141,000 industrial robots in 2017, up 58.1% year-on-year, but foreign brands accounted for nearly three quarters of that, showing that the gap is still widening between Chinese robot makers and their foreign peers.

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.

but that was markedly lower than the previous month’s rise of 8.2 per cent.
Snapchat on Tuesday launched Discover, a section of its app where media outlets including Vice, CNN andPeople magazine can publish video content within Snapchat. Already several of the channels feature ads, which aren’t cheap. According to Adweek, Snapchat ads cost $750,000 per day.
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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. 浙江:科研劳务费可参照本地区科研人员平均工资确定 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “他告诉电视台记者说:在美国有这样一种制度,我们会注意那些本来该到你的手上结果却没到你手上的东西,我们会把它重新送还给你,这个系统非常好。 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. “体育在热门趋势搜索排行中占据了优势地位,对2012欧洲杯和奥运门票感兴趣的人最多,排名超过了休斯顿和凯特王妃。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 北京完成首批积分落户数据核查 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. "Twenty Two" featuring the tales of 22 comfort women became the first Chinese documentary to surpass 100 million yuan at the box office. Associated Press. 7 Jul 2020.

UCDavis Health. 住建部:已完成今年棚改任务62.5% 棚改货币化安置不搞“一刀切” Accessed 3 Aug 2020.

University of Queensland, Australia. 调查称购房者对楼市信心指数呈增长态势 Accessed Aug 3 2020.

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