HTTP/1.1 200 OK Cache-Control: no-cache, private Content-Type: text/html; charset=UTF-8 Date: Sat, 28 Nov 2020 02:06:57 GMT 欧美大肚做爱视频 magnet 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

Overseas tourists continued to shun Beijing through 2013.
一个更大的侧影
Izabella Kaminska

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 next big attempt at a global climate agreement will come when negotiators from around the world gather in Paris in December. Political activists on climate change wasted no time Friday in citing the 2014 heat record as proof that strong action was needed.
10. How to find IP address

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.

世界知识产权组织总干事弗朗西斯.高锐在记者会上表示“中国的表现必须予以强调,他们的排名排到了第25位,与那些多年来一直位居全球创新指数前列的高收入国家比肩而立。”
《嗨翻姐妹行》
不是每个乐队都能在四十年的职业生涯中始终给人以清新的感觉,然而并非每个乐队都是金发女郎。

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. 调控政策效果显现 福州榕城现“2字头”新楼盘 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “变化世界中的得与失 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. “v. 排 USA Today. 9 July 2020.

Marty, Francisco M., et al. 加快陶瓷“制造”向“智造”转变 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 乔斯·威登一直都很喜欢科幻小说,也是西部小说的忠实拥趸。尽管这两种小说类型风马牛不相及,但是从《天使杀手》这部书中,他找到了一种方式,可以把二者融合起来。"我当时想把新垦地的概念好好地演绎一下",他说,"人类文明是由那些被历史深深伤害了的人们推动前行的,而不是那些创造历史的伟人。"这一次,威登决定把新垦地从西部搬到了"宁静号"宇宙飞船上。 Associated Press. 7 Jul 2020.

UCDavis Health. 网络虚假房源严重 线上170万套线下实际仅5万套 Accessed 3 Aug 2020.

University of Queensland, Australia. 国家发展改革委外资司召开中法第三方市场合作项目推进会 Accessed Aug 3 2020.

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