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


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她的设备使用了碳纳米管来检测铅的存在。据报道,数千个美国供水系统都有铅污染的问题。
This year they looked at the use of negative strategies such as anger or stonewalling responses to conflict, and found that these predicted health-related changes over time in specific ways.
Cnzz.com的报告说,目前中国3.38亿网民中有将近三分之二都是网络游戏玩家。报告说,中国网络游戏行业目前占据了互联网经济总规模的半数以上,在未来还将以每年20%的速度增长。

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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.”

The number of people holding degrees from colleges or universities reached 170.93m, which means there were 12,445 people with an advanced education per 100,000 people in 2015, up from 8,930 in 2010. The number of people who had attended a senior high school also increased, and the number who had only completed lower-level education fell.
分析师们认为,这次新机发布将有助于苹果克服过去两年的增长问题。在像美国和欧洲这样的市场上,智能手机的拥有量已趋近饱和,很多客户不再频繁更换现有手机,推动更快收入增长的最佳途径就是提高单位价格,而不是单纯地依靠出货量。

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.

中国现在不仅“完全与世界一体化”,还可能正在开始退出这一状态,把供应链的更多环节带回国内,因此除非非洲能够成功地走上中国道路,否则“我想,现在我们将回到这样一种情形:我们认为没有任何特殊原因支持贸易增速超过GDP增速,”他补充说。
7. 举重训练可以帮助提高长期记忆力
两年前,美国电影学院特地延迟了年终投票的时间,就为了电影星球大战:原力觉醒能够参选,后来该电影进入了2015榜单前十。然而今年最新的《星际大战:最后的绝地武士》,将于12月15日上映,无缘上榜。

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. 广东清远住建局:备案价不得上调 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “Usually sober-minded analysts, accustomed to the auto industry’s slow growth, seem to shed their inhibitions when it comes to Tesla. Rod Lache of Deutsche Bank has attached a $310 price target on the stock. Not to be out-done, Adam Jonas of Morgan Stanley established a $320 price target and calls Tesla it the “most important car company in the world”. 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. “5、邦德具备美女约会种种要求。乐衷于性的女人更喜欢“坏男人”-邦德属于此类。讲究的女人喜欢阳刚男人,寻求一夜情的女人喜欢外型帅气、主动进攻的男人-非邦德莫属。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 半数以上大房企有望完成全年销售目标 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. 单词protocol 联想记忆: Associated Press. 7 Jul 2020.

UCDavis Health. 新品瓷砖面市 含金丝瓷砖身价高普通家庭有距离 Accessed 3 Aug 2020.

University of Queensland, Australia. 好莱客拟定增募资8.25亿加码家居智能 Accessed Aug 3 2020.

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