The great effect of wearing a mask found in the latest research on Korona-ka

Since the beginning of the pandemic of "Coronavirus Disease (COVID-19)", there has been a lot of confusion about the effectiveness of masks. Also, sadly, in the "US Presidential Election 2020", masks should be worn by yourself and those around you to prevent the spread of infection, but "wearing or not wearing masks" is used politically. It's gone. In other words, it is very unfortunate that the 〇 and × have become the form of statements to the supporting political parties.

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This time, together with the UK (UK) editorial department of "Men's Health", we asked them to tell us about the situation in the UK about the great effect of wearing a mask found in the latest research.


◇ British Prime Minister voluntarily quarantined due to contact with new corona infected person

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Today I was notified by NHS Test and Trace that I must self-isolate as I have been in contact with someone who tested positive for COVID-19.I have no symptoms, but am following the rules and will be working from No10 as I continue to lead the government's pandemic response.

— Boris Johnson (@BorisJohnson) November 15, 2020

On November 15, 2020, British Prime Minister Johnson revealed on Twitter that he had entered into voluntary quarantine in accordance with the rules due to contact with a person infected with the new coronavirus. According to a spokesman for the British Prime Minister, he "has no symptoms of infection and will continue to work in the official residence while being quarantined independently."

The situation in the UK is serious, with 595 people dying from infection as of November 11, 2020, according to health officials. As a result, the cumulative death toll is 50,365, exceeding 50,000 for the first time in Europe.

◇ London again restrictions on going out

Since November 5th, London and England have taken strict measures since the spring of this year, such as restricting citizens from going out and banning retail and restaurant operations in principle. However, it does not seem to stop the spread of specific infections.

◇ Mask situation in the UK

Today, the journal of General Internal Medicine also publishes research papers showing that wearing a mask reduces the risk of developing COVID-19.

A pandemic caused by "new coronavirus infection (COVID-19)" caused by "severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)". It has been shown that wearing a mask reduces the possibility of inhaling such "SARS-CoV-2".

コロナ禍の最新研究で分かったマスク着用の大きな効果

According to the paper, the research team used a hamster in a basket separated by a partition made of medical mask (= surgical mask / non-woven mask) material to "new coronavirus infection (COVID-19)". An experimental study of the infection was conducted.

However, the results of animal experiments cannot be directly applied to humans.

◇ Tyson, a US food company that had an outbreak

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For that reason, the sudden spread of infection (outbreak) that occurred at the poultry farm facility of the US food company Tyson in April 2020 is also being verified. On April 26, the same year, Chairman Jon Tyson posted a front-page advertisement to the Washington Post and The New York Times stating that "American food supply is beginning to collapse."

At Tyson, all employees wore masks. However, it has been confirmed that many staff members were infected shortly after one COVID-19-positive person appeared, and then acquired SARS-CoV-2 antibody.

Not all masks have the same performance, of course. It has been reported that some reusable masks can block about 95% of fine particles, while others can block only about 7%.

◇ Review the effect of N95 mask

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A type of personal protective equipment for fine particles called "N95 mask", which has been recognized for its close contact with the mask and the ability to collect more than 95% of fine particles in the air. The Ministry of Health, Labor and Welfare has certified it as one of the designated products for measures against SARS (Severe Acute Respiratory Syndrome), MERS (Middle East Respiratory Syndrome), New Influenza and Tuberculosis Bacteria.

Originally it is a disposable N95 mask, but with the release of "Exceptional handling of N95 mask" announced by the Ministry of Health, Labor and Welfare on April 10, 2020, Reiwa

Etc. are recommended.

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◇ Comparison evaluation of barrier, breathability, comfort and deterioration of British masks

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It may not be easy for Japanese readers to get the information, but for those who are planning to travel to the UK, for those who live in the UK in their families, we recommend masks locally. I will introduce you.

The British online media "Which?" Compares and evaluates the barrier properties, breathability, comfort, deterioration after washing, and suitability for reuse of different types of masks.

According to the article, for £ 15 the masks from both the "NEQI" and "Bags of Ethics" brands have earned the highest ratings for filter performance and comfort.

For those on a tight budget, the "Step Ahead" mask, which sells for £ 2, shows the high cost-effectiveness.

On the other hand, there seems to be some low-performance masks that have been classified as "Don't Buys" by the same media.

Three types of masks, "Termin 8 (sold by Lloyds Pheermacy and WHSmith = UK pharmacy chains)", "Etiquette (sold by Superdrug)", and "Asda White Patterned", were evaluated as "problem" in filter performance. I am. Both are single-layer masks made of elastic cloth material.

◇ Conclusion

The conclusions of these two types of research are that the best precautions we can take while waiting for a vaccine to be developed are [1] wear a multi-layered mask and [2] work well. It can be said to wash and protect [3] social stance.

Related Story Coronavirus Countermeasures: What is the effect of wearing a mask? Expert "Hand washing is more effective"

◇ As a countermeasure against the new coronavirus, "hand washing" is more effective than a mask.

"Is the mask effective for wearing it? As explained in the article "Hand washing is more effective" by the expert, it can be said that "hand washing" is much more effective than a mask.

This content is imported from YouTube. You may be able to find the same content in another format, or you may be able to find more information, at their web site. Not possible "For new coronavirus countermeasures: High-tech" mask "mask spray that can be used repeatedly 5 recommended selections [Aroma and ethanol combination type for sterilization and odor countermeasures]

Source / Men's Health US Translation / Kazuki Kimura * This translation is an abridged translation.

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