Tag Archives: coronavirus pandemic

What is the best mask for COVID-19? A mechanical engineer explains the science after 2 years of testing masks in his lab

Photo: Adobe Stock

1. What changed in the CDC guidelines?

The CDC currently recommends that you “wear the most protective mask you can that fits well and that you will wear consistently.” The question, then, is what type of mask offers the best protection for you – by filtering the air you breathe in – and for those around you – by filtering the air you breathe out?

The CDC’s updated guidelines clearly lay out the hierarchy of protection: “Loosely woven cloth products provide the least protection, layered finely woven products offer more protection, well-fitting disposable surgical masks and KN95s offer even more protection, and well-fitting NIOSH-approved respirators (including N95s) offer the highest level of protection.”

From a performance standpoint, the N95 and KN95 masks are the best option. While supply chain limitations led to the CDC recommending people not wear N95s early in the pandemic, today they are easily obtainable and should be your first choice if you want the most protection.

The biggest change in the new guidelines has to do with cloth masks. Previous guidance from the CDC had said that some cloth masks could offer acceptable levels of protection. The new guidance still acknowledges that cloth masks can offer a small amount of protection but places them at the very bottom of the bunch.

N95 masks are made from a tangled web of tiny plastic fibers that are very effective at trapping particles. Alexander Klepnev via Wikimedia CommonsCC BY-SA

2. What’s the difference between N95, surgical and cloth mask materials?

The effectiveness of a mask – how much protection a mask provides the wearer – is a combination of two major elements. First, there’s the ability of the material to capture particles. The second factor is the fraction of inhaled or exhaled air leaking out from around the mask – essentially, how well a mask fits. 

Most mask materials can be thought of as a tangled net of small fibers. Particles passing through a mask are stopped when they physically touch one of those fibers. N95s, KN95s and surgical masks are purpose-built to be effective at removing particles from air. Their fibers are typically made from melt-blown plastics, often polypropylene, and the strands are tiny – often less than four thousandths of an inch (10 micrometers) in diameter – or approximately one third the width of a human hair. These small fibers create a large amount of surface area within the mask for filtering and collecting particles. Although the specific construction and thickness of the materials used in N95, KN95 and surgical masks can vary, the filter media used are often quite similar.

These fibers are very tightly packed together so the gaps a particle must navigate through are very small. This results in a high probability that particles will end up touching and sticking to a fiber as they pass through a mask. These polypropylene materials also often have a static charge that can help attract and catch particles. 

Cloth masks are typically made of common woven materials such as cotton or polyester. The fibers are often large and less densely packed together, meaning particles can easily pass through the material. Adding more layers can help, but stacking layers has a diminishing return and the performance of a cloth mask, even with multiple layers, will still typically not match that of surgical mask or N95.

3. How much does fit matter for masks?

Fit is the other major component in how effective a mask is. Even if the materials used in a mask were perfect and it removed all particles from the air that passed through it, a mask can offer protection only if it doesn’t leak.

When you breathe in and out, air will always take the path of least resistance. If there are any gaps between a mask and someone’s face, a substantial fraction of every breath will seep out through those gaps and the mask will provide relatively little protection

Many cloth mask designs simply do not seal well. They are not stiff enough to push against the face, there are gaps where the mask doesn’t even come in contact with the face and it is not possible to cinch them tightly enough against the skin to form a decent seal.

But leaking is a concern for all masks. Although the materials used in surgical masks are quite effective, they often bunch and fold on the sides. These gaps provide an easy route for air and particles to leak out. Knotting and tucking surgical masks or wearing a cloth mask over a surgical mask can both significantly reduce leakage.

N95 masks aren’t immune to this problem either; if the nose clip isn’t securely pushed against your face, the mask is leaking. What makes N95s unique is that a specific requirement of the N95 certification process is making sure the masks can form a good seal.

4. What is different about omicron?

The mechanics of how masks function is likely no different for omicron than any other variant. The difference is that the omicron variant is more easily transmitted than previous variants. This high level of infectiousness makes wearing good-quality masks and wearing them correctly to limit the chances of catching or spreading the coronavirus that much more critical.

Unfortunately, the attributes that make for a good mask are the very things that make masks uncomfortable and not very stylish. If your cloth mask is comfy and light and feels like you are wearing nothing at all, it probably isn’t doing much to keep you and others safe from the coronavirus. The protection offered by a high-quality, well-fitting N95 or KN95 is the best. Surgical masks can be very effective at filtering out particles, but getting them to fit correctly can be tricky and makes the overall protection they will provide you questionable. If you have other options, cloth masks should be a last choice.

Originally published on The Conversation by Christian L’Orange and republished under a Creative Commons License

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Climate Emergency, Vaccine Monopolies, and Fiscal Blindness: The Fight Against Inequality Is the Only Way Out

Above: Photo Credit: Photo Collage / Lynxotic

If we are failing to meet our commitments, it is because of a handful of the richest people on the planet refuse to pay their taxes.

2021 will perhaps be remembered as the year when the great powers demonstrated their inability to assume their responsibilities to prevent the world from sinking into the abyss. I am thinking of course of the 26th United Nations Climate Change Conference (COP26) in Glasgow. After having used up the available atmospheric space to develop, the industrialized countries reaffirmed their refusal to honour this climate debt, even though global warming has become an existential issue.

And this is not all. I also refer to the calamitous management of the Covid-19 pandemic. Rich countries have monopolized and hoarded vaccines, and then locked themselves in surreal debates about third doses or the comparative merits of this or that vaccine. This strategy sows death and hinders economic recovery in vaccine-deprived countries, while making them fabulous playgrounds for the proliferation of more contagious, more deadly and more resistant variants that do not care about borders. 

If we add the tax evasion of the ultra-rich using tax havens, we arrive at a total loss of US $483 billion.

Finally, I also want to talk about another agreement imposed by the Northern capitals, apparently more technical, but which symbolizes their selfishness and blindness: the one on the taxation of multinationals. Concluded in October, it is a gigantic undertaking, the first reform of the international tax system born in the 1920s, totally obsolete in a globalized economy. Thanks to its loopholes, multinationals cause States to lose some US $312 billion in tax revenue each year, according to the “State of Tax Justice in 2021” just published by the Tax Justice Network, the Global Alliance for Tax Justice and Public Services International.

If we add the tax evasion of the ultra-rich using tax havens, we arrive at a total loss of US $483 billion. This is enough, the report reminds us, to cover more than three times the cost of a complete vaccination programme against Covid-19 for the entire world population. In absolute terms, rich countries lose the most tax resources. But this loss of revenue weighs more heavily on the accounts of the less privileged: it represents 10% of the annual health budget in industrialized countries, compared to 48% in developing ones. And make no mistake, the people responsible for this plundering are not the tropical islands lined with palm trees. They are mostly in Europe, first and foremost in the United Kingdom, which, with its network of overseas territories and “Crown Dependencies”, is responsible for 39% of global losses.

In this context, the agreement signed in October is a missed opportunity. Rich countries, convinced that complying with the demands of their multinationals was the best way to serve the national interest, put themselves behind the adoption of a global minimum corporate tax of 15%. The objective, in theory, is to put an end to the devastating tax competition between countries. Multinationals would no longer have an interest in declaring their profits in tax havens, since they would have to pay the difference with the global minimum tax.

In reality, at 15%, the rate is so low that a reform aimed at forcing multinationals to pay their fair share of taxes risks having the opposite effect, by forcing developing countries, where tax levels are higher, to lower them to match the rest of the world, causing a further drop in their revenues. It is no coincidence that Ireland, the European tax haven par excellence, has graciously complied with this new regulation.

Taxation is the very expression of solidarity. In this case, the absence of solidarity. A global tax of 15% on the profits of multinationals will only generate US $150 billion, which, according to the distribution criteria adopted, will go, as a priority, to rich countries. If ambition had prevailed, with a rate of 21% for example, we would have obtained an increase in tax revenues of US $250 billion. With a rate of 25%, tax revenues would have jumped by US $500 billion, as recommended by ICRICT, the Independent Commission on the Reform of International Corporate Taxation, of which I am a member, along with economists such as Joseph Stiglitz, Thomas Piketty, Gabriel Zucman and Jayati Ghosh.

Making multinationals pay their fair share of taxes, fighting climate change, dealing with Covid-19 and future pandemics: in reality, everything is linked. While the virus is on the rise again with the arrival of winter in the northern hemisphere, the boomerang effect of the vaccine monopolies no longer needs to be shown or explained. As for the climate emergency, we know from a recent study by the World Inequality Lab that the map of carbon pollution is perfectly in line with that of economic disparities. The richest 10% of the world’s population emit nearly 48% of the world’s emissions—the richest 1% produce 17% of the total!—while the poorest half of the world’s population is responsible for only 12%.

This gap is obvious between countries, but also within them. In the United States, the United Kingdom, Germany and France, the emissions levels of the poorest half of the population are already approaching the per capita targets for 2030. If we are failing to meet our commitments, it is because of a handful of the richest people, the same people who do not pay their taxes. It is time for our elites to realize that fighting inequality on all fronts—health, climate and tax—is our only way out. Otherwise, there is no salvation for humanity—and it is no longer a hyperbole.

Originally published on Common Dreams by EVA JOLY and republished under under Creative Commons license (CC BY-NC-ND 3.0)

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In iOS 15.1 you’ll be able to put Proof of Vaccination ID into your Wallet

Above: Photo Credit / Apple

When the iOS 15.1 update drops for the general public (likely soon as it’s already been seeded to beta testers since Monday) it will feature the ability to add your proof of vaccination status to the Health app and then create a vaccination ID card in Apple Wallet.

Many businesses, venues, restaurants, and more are requiring proof of vaccination for entry. For example California is the first state where proof of COVID vaccination or negative test for indoor events over 1,000 people.

The new feature in iOS 15.1 is made possible by the support Smart Health Cards which are valid for California, Louisiana, New York, Virginia, Hawaii, and some Maryland counties, as do Walmart, Sam’s Club, and CVS Health.

Above: ID in iPhone Wallet

Therefore, using this system you would be able to to look up their information in state databases, if you are in any of the states listed above, but if you were vaccinated through at Walmart or CVS it will also be feasible to add your information to the Health and Wallet.

Once you have gone to the web site for your state, for example in California it would be found at https://myvaccinerecord.cdph.ca.gov where you can type in personal information such as name and date of birth to get access to your records and status.

Though iOS 15 already has the ability to download the information to your Health app, and you can do this today, the last step, adding an ID to your wallet from the health app will not be possible until you have upgraded to iOS 15.1.

The record is locked to your name and can only be used by you. There will be a QR code that you will first download to your health app on the iPhone, then, once it is in the health app there will be a prompt to allow you to “add to wallet”. By clicking that link a vaccination ID car, with the QR code will be generated and added to your wallet.

iOS 15.1 is likely to be available under > General > software update in your phone’s Settings app within days. (Our guess is by Monday, September 27, 2021)

  1. Tap the download link on your iPhone or iPod touch.
  2. Tap Add to Health to add the record to the Health app.
  3. Tap Done.

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Last U.S. forces out of Afghanistan after almost 20 years

Above: Photo: Unsplash

Long tragic war leads to final air-lift

Reuters reported today that the Withdrawal from Afghanistan has been completed, according to U.S. officials.

The final chaotic airlift was taking place nearly 20 years after the U.S. invaded the country after Sept. 11, 2001, in response to the attack on the World Trade Center.

More than 122,000 were airlifted out of Kabul in the last 16 days, an action that started just one day before the Taliban regained control.

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Breaking: U.S. strikes Islamic State in Afghanistan after deadly Kabul attack

Above: Image by David Mark from Pixabay 

Reuters reported tonight that a drone strike has been confirmed in retaliation for the suicide bombings yesterday that killed 13 American service personal. The military confirmed that a strike was carried out against an “Islamic State attack planner in eastern Afghanistan”.

The strike follows the vow from President Joe Biden that was made on Thursday that the United States would hunt down those responsible for the attack, and that the Pentagon had been tasked to come up with plans to strike back at the perpetrators of the deadly bombings.

The location of the drone strike was Nangahar province, east of Kabul, but no connection was, as of yet, confirmed regarding any direct involvement of the targeted in the airport attack.

“Initial indications are that we killed the target. We know of no civilian casualties,” a U.S. military statement said.

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The Day Music Dies could be Looming in Afghanistan, under the Taliban

Above: Photo ISIS / Courtesy of Twitter

Young students, teacher and faculty are staying home and currently are closing its doors of the Afghanistan National Institute of Music (ANIM) located in Kabul. 

The school has accomplished great successes in the realm of culture and arts in Afhanistan, including the all-female Zohra orchestra. Founder and Director of ANIM Ahmad Sarmast said “armed people entered school property” and have attempted to steal cars and have destroyed musical instruments.

Making music can have deadly consequences

According to the NPR report, under the Taliban rule in the 1990’s performing, selling or listening to music was strictly forbidden and could get you in serious trouble if caught. 

Yet the art of making music has always been a risky one in Afghanistan.  In the past there have been numerous musicians that have been threatened, kidnapped or even killed.

With recent explosions it is unclear whether Taliban will allow for such organizations like the institute of music to continue to exist. 

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Mike Pence slammed in Hilarious Future Campaign Ad

Will the man Trump says is a “Pussy” ultimately have the last laugh?

On the same day Pence ruled out invoking the 25th Amendment to remove Trump after last week’s violence on Capitol Hill, Lincoln Project released this new ad. After the drama that transpired when Trump supposedly said that if Pence refused to singlehandedly overturn a bona fide election win for Biden, that he would be a “Pussy”, in spite of the fact that it was literally impossible for him to do since the VP had no such powers. Pence certified the election results in favor of Biden, apparently therefore, according to Trump, becoming a “pussy”.

Next up: his qualifications to run for office in 2024, presumablly on that platform.

This comes also alongside the historic news of the house of representatives officially impeached Trump for the second time for “incitement of insurrection”.

Read More: Second Impeachment for Trump is Confirmed: Double Disgrace for all Time

As Vice President, Mike Pence has proven that even in the face of a constitutional crisis which he alone was uniquely empowered to deal with, he could remain steadfast in his commitment to doing nothing at all. This makes him the obvious and most qualified leader to take over the role as the leader of the MAGA movement. And the only choice in 2024 to lead our nation into the next era of disappointment.

The Lincoln Project /youtube

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Yet another White House aid: Stephen Miller tested covid-19 positive

Top aid is the next on a growing list of those infected from Trump’s inner circle

Due to the outbreak of positive test result in many who work in the White House, Miller was already self-isolating, working remotely for the last five days. He was tested daily during that time and said that he had tested negative for the virus every day through Monday. His wife tested positive for COVID-19 in May. She just happens to be Vice President Mike Pence’s press secretary Katie Miller.

As we reported in previous articles, this, it can be loosely surmised, is an ongoing extension of the numerous cases that appear to have an origin in the SCOTUS super-spreader event held at the White House Rose Garden. That event has been responsible for at least 14 known cases and has been dubbed the “Rose Garden Massacre”.

Others from the White House inner circle that have been previously announced as having tested positive include:

  • Melania Trump (First Lady)
  • Ronna McDaniel (Republican National Committee chairwoman)
  • Hope Hicks (White House communications aide)
  • Kellyanne Conway (Former White House counselor)
  • Bill Stepien (Trump campaign manager)
  • John Jenkins (University of Notre Dame president)
  • Chris Christie (Former New Jersey Gov.)
  • Nick Luna (Director of Oval Office operations)
  • Karoline Leavitt (White house assistant press secretary) 
  • Chad Gilmartin (White House press office staffer)
  • Kayleigh McEnany (White House press secretary)
  • Sen. Mike Lee (R-Utah)
  • Sen. Thom Tillis (R-N.C.)
  • Sen. Ron Johnson (R-Wis.)

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Covid-19 Documentary Exposes still more inside details of Trump’s failure to contain the Pandemic

Made in secrecy during the past 6 months with interviews from administration insiders

Just when it seemed like 2020 could not get any stranger, President Donald Trump announced via Twitter on October 2nd that he and First Lady Melania Trump tested positive for COVID-19. In what some would see as a ‘karmic’ coincidence, within twenty-four hours of this breaking news, Neon media dropped a trailer for the new documentary “Totally Under Control,” which focuses on the President and his administration’s unsuccessful response to the coronavirus. 

Read More: Tweets Reacting to Trump-Covid are Evolving at Warp Speed

“Totally Under Control” is the second Trump-focused project from documentarian Alex Gibney. Earlier this year, the director released “Agents Of Chaos,” an HBO mini-series centered on Russian involvement in the 2016 election. Gibney is also responsible for the 2010 Oscar nominated doc, “Client 9: The Rise And Fall Of Eliot Spitzer” and the 2007 Oscar winner, “Taxi To The Dark Side.” Most of his films take on timely topics through an investigative lens. “Totally Under Control” will be no different. 

Unsurprisingly, Gibney latest movie condemns the Trump administration, as it chronicles how the President handled the coronavirus across the first half of 2020. Its synopsis states: 

“On January 20th, 2020 the US and South Korea both discovered their first cases of COVID-19. However, nine months later, the novel Coronavirus has claimed the lives of over 200,000 Americans and caused staggering economic damage, while in South Korea, there were no significant lockdowns and, in an urbanized population of 51 million, only 344 lives have been lost. Where did we go wrong?” 

Read More: Donald and Melania Trump tested positive for Covid-19

The film aims to answer this question and shed light on America’s complicated, corrupted, and fruitless reaction to the global pandemic. To do this, Gibney uses news footage from the past ten months— much of it showing Trump’s early, woefully dismissive thoughts on the coronavirus before it hit the United States.

He also interviews experts from doctors, to scientists, to government officials, all of whom agree that the current administration’s reaction to COVID was absolutely abhorrent from the start. 

The trailer plays out like that of a disaster movie, beginning with former Biomedical Advanced Research and Development Authority leader, Rick Bright explaining, “The scientists knew what to do for the pandemic response. The plan was in front of us, but leadership would not do it.” Bright goes on to recall how he tired bringing this vital information to the public, but was consequentially fired from his federal position. 

As the trailer unfolds, the music gets more and more intense. The interviewees retell the all-too-familiar 2020 story of how COVID got worse by the day and the United States government did nothing to combat it. Meanwhile, quasi-apocalyptic images of ubiquitous ambulances, omnipresent sirens, medial personnel in hazmat suits, restless political rallies, and so on flash across the screen.

All the while, Trump’s voice comes in and out with infamous phrases such as “It will disappear,” “It will be wonderful,” and most egregiously, “I don’t take responsibility at all.” 

Art imitates life as covid disbeliever enters hospital after contracting virus that affects ‘almost nobody’

Today, these statements are more ironic than ever before, as Trump himself has been checked into the Walter Reed Medical Center in Bethesda, Maryland for COVID. The diagnosis occurred just two days after the first presidential debate, where Trump continued to downplay the coronavirus in favor of reopening the country. 

“Totally Under Control” will be available On-Demand starting October 13th and will stream on Hulu starting October 20th. Although the film focuses on current (and ongoing) events, it is not the first piece of media to tackle the coronavirus, and it surely won’t be the last.

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Hear Exactly what Trump Knew and when He Knew It in Coronavirus Cover-up

The precise side-by-side audio and video of the real facts and the public lies

A more detailed, side by side comparison, showing exactly what Trump admitted to knowing as fact in March, and the misleading statements and outright lies that he publicly spread, subsequent to the recorded conversation.

This Bob Woodward tape puts Trump into a situation that even he will have a hard time talking and lying his way out of. The New Ad from Lincoln Project does a great job exposing his exact words and the obvious intentional decision to mislead the public in a politically calculated, and deadly, misinformation strategy.


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