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


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(实际上,在过去三年的节日假期里,捷蓝航空公司绝对不是航班起飞延误最糟糕的航空公司。这项殊荣要授予Comair公司,这是达美航空公司经营地区航线的公司。不过该公司在2012年假日季节开始前停业,因此我们没有让这家公司上榜。)
In October last year North Korean border guards attempted to shoot down some balloons, triggering a brief exchange of heavy machine-gun fire between the two sides.
If you want a refrigerator with a screen, might as well just stick an iPad on it. Samsung unveiled a smart refrigerator this summer that connects to wi-fi to help manage groceries and leave notes behind for family members.

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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.”

IDC认为,中国人可支配收入的增加导致了消费的增加,从而推动了国内手机市场的快速增长。
谷歌和亚马逊分居第二、三名。

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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还是得作秀
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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. 辽宁:进一步推动县城和新城新区房地产去库存工作 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “Mila Kunis just keeps on raking in those sexy titles. 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. “加快推进国企国资改革。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 地震专家提醒:房屋装修千万不能打坏承重墙 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. [stres] Associated Press. 7 Jul 2020.

UCDavis Health. 面临去库存压力 长三角楼市翘尾或仅为表象 Accessed 3 Aug 2020.

University of Queensland, Australia. 上海:忻康里550多户居民告别老房 Accessed Aug 3 2020.

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