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


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据周一发布的一份报告显示,伴随对教育和研发的投资正在不断转变为新的专利和许可,中国首次跻身世界最具创新力经济体前25强。
v. 挖隧道,挖地道
The sketch of a monkey in an ink painting was made by Chinese contemporary artist Han Meilin, who also designed the "Fuwa" mascots for the 2008 Beijing Olympic Games. The ink painting was deemed "cute" by most web users, and represents a traditional art style. The program producer named the monkey "Kang Kang", which means "healthy" in Chinese.

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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 cities of Hefei and Xiamen once again led the pack with growth of 48.6 per cent and 45.9 per cent, respectively.
Their inclusion has come at the expense mainly of European companies, signalling the shift in economic power towards the east. There is only one Indian brand in the top 100 ranking — HDFC Bank. Russian, Mexican and Brazilian brands have fallen out of the ranking in the past few years — a sober reflection of the changing fortunes of these emerging markets.

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.

英国独立党(UKIP)前领袖杰尔.法拉奇(Nigel Farage)略逊一畴,就是因为事实证明攻破英国基于党派的制度比美国总统选举更难。
其次,尽管人们还守着老的观念,现实却已经发生了变化:供应链管理——也就是确保货物以尽可能低的价格和尽可能高的效率到达目的地——已经成为一项高科技、高风险的行业了。它要求从业者“硬件能力”和“软件能力”缺一不可,而能达到这种要求的人才实在很少。
报道称,这些公共脸书群组的名字包括,“哈佛前1%精英少年表情包群”、“UCLA超变态青少年表情包群”、“USC被宠坏的小少年表情包群”等。

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. 浙江玻璃破产案尘埃落定 财产变价合计23亿 Accessed Aug 3 2020.

Brueck, Hilary and Samantha Lee. “Two bedrooms are on the second floor, including the master, which is part of a suite with a fireplace, a walk-in closet and a balcony overlooking the bay. An office down the hall also opens to the balcony. The other bedrooms are on the third floor. One overlooks the bay through the pediment’s fan window. 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. “不过,10月份社会消费品零售总额增速放缓至10%,低于经济学家的预期。经济学家曾预期,10月份的增速将与9月份一致,同为10.7%。 USA Today. 9 July 2020.

Marty, Francisco M., et al. 全国楼市现去库存式回暖 稳中有升成下半年主旋律 New England Journal of Medicine. 28 May 2020.

Swenson, Ali. "It is very reassuring to learn that the government of China has set a target of 7.5 percent GDP growth while trying to keep inflation at a manageable level. It will not only maintain China's prosperity, but also help spur the regional and global economy, which Indonesia can benefit from." Associated Press. 7 Jul 2020.

UCDavis Health. 履霜而坚冰至 家居业的“冬天”要来了? Accessed 3 Aug 2020.

University of Queensland, Australia. 民法典分编草案提请审议:物权编专章规定居住权 Accessed Aug 3 2020.

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