HTTP/1.1 200 OK Cache-Control: no-cache, private Content-Type: text/html; charset=UTF-8 Date: Thu, 26 Nov 2020 17:32:30 GMT 闫盼盼视频在线 Skip to main content
A Project of The Annenberg Public Policy Center

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


Quick Take

日立数据系统:提升士气的狗狗节
巴韦贾对全球化不断变化的性质的深度分析显示,全球贸易增长疲软背后的主要因素是投资减速。全球贸易增速曾在很长一段时间内是全球GDP增速的两倍。
4. 2012年搞笑诺贝尔奖之神经科学奖

Full Story

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.”

The reason is twofold: For one, logistically, there are simply too many opportunities to get caught job searching. Résumé copies will be found. Computer servers will be checked. Co-workers will notice when you're clearly elsewhere, either literally for interviews or emotionally (more on that later)。
11. Arctic and Antarctic sea ice volumes both fall to an all-time low

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.

位居榜单第三的是史蒂夫·卡瑞尔(Steve Carell)。《卑鄙的我2》(Despicable Me 2)在今年大获成功,斩获票房9.19亿美元。该电影系列累计已取得14亿美元的全球票房,该系列第三部《小黄人》(Minions)也即将上映。卡瑞尔今年还出演了小制作独立影片《迷途知返》(The Way Way Back)和《超级魔术师》(The Incredible Burt Wonderstone)。后一部影片的票房虽未能赚回制作成本,但是我们这里只关注票房收入——该部影片为卡瑞尔2013年的电影票房收入又添2,250万美元。
但是,我们也许终于走到了终点。也许只有在该剧落幕之后,它对成衣秀的影响力才会终结。也许我们对历史无休止的模仿(是的,我们曾模仿70年代的风格以及80年代的大波浪头和高垫肩)才会最终停止。
“Obviously, a single year, even if it is a record, cannot tell us much about climate trends,” said Stefan Rahmstorf, head of earth system analysis at the Potsdam Institute for Climate Impact Research in Germany. “However, the fact that the warmest years on record are 2014, 2010 and 2005 clearly indicates that global warming has not ‘stopped in 1998,’ as some like to falsely claim.”

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. 地产股收盘 | 恒指跌破27000点 新城市建设发展跌近75% Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “上证综指下跌6.85%,以科技版块为重点的深证综指下跌8.22%。 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. “1.take hard classes USA Today. 9 July 2020.

Marty, Francisco M., et al. 计生协明年将着力解决群众不想生、不敢生、托育难等问题 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 在MBA榜单上,伦敦商学院、INSEAD和西班牙企业商学院(IE Business School)毕业生的薪酬相差无几,只有几美元的差距。INSEAD的毕业生薪资最高,为15.5015万美元。 Associated Press. 7 Jul 2020.

UCDavis Health. 机构:北京高端别墅市场销量环比下降62.4% Accessed 3 Aug 2020.

University of Queensland, Australia. 制假售假横行 涂料市场呼唤诚信经营 Accessed Aug 3 2020.

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