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“Approximately Zero”: What the Best Evidence Shows Masks Do Against Covid

by Will Jones
23 February 2023 12:07 PM

John Tierney has written an excellent article in City Journal summarising the latest Cochrane review showing masks do “approximately zero” against Covid. Here’s an excerpt.

The most rigorous and extensive review of the scientific literature concludes that neither surgical masks nor N95 masks have been shown to make a difference in reducing the spread of COVID-19 and other respiratory illnesses.

This verdict ought to be the death knell for mask mandates, but that would require the Centers for Disease Control (CDC) and the rest of the public-health establishment to forsake ‘the science’ — and unfortunately, these leaders and their acolytes in the media seem as determined as ever to ignore actual science. Before the pandemic, clinical trials repeatedly showed little or no benefit from wearing masks in preventing the spread of respiratory illnesses like flu and colds. That was why, in their pre-2020 plans for dealing with a viral pandemic, the World Health Organisation, the CDC, and other national public-health agencies did not recommend masking the public. But once COVID-19 arrived, magical thinking prevailed. Officials ignored the previous findings and plans, instead touting crude and easily debunked studies purporting to show that masks worked.

The gold standard for medical evidence is the randomised clinical trial, and the gold standard for analysing this evidence is Cochrane (formerly the Cochrane Collaboration), the world’s largest and most respected organisation for evaluating health interventions. Funded by the National Institutes of Health and other nations’ health agencies, it’s an international network of reviewers, based in London, that has partnerships with the WHO and Wikipedia. Medical journals have hailed it for being “the best single resource for methodologic research” and for being “recognised worldwide as the highest standard in evidence-based healthcare”.

It has published a new Cochrane review of the literature on masks, including trials during the COVID-19 pandemic in hospitals and in community settings. The 15 trials compared outcomes of wearing of surgical masks versus wearing no masks, and also versus N95 masks. The review, conducted by a dozen researchers from six countries, concludes that wearing any kind of face covering “probably makes little or no difference” in reducing the spread of respiratory illness.

This may seem counterintuitive, writes Tierney, but not if you understand what’s going on at a microscopic scale.

It may seem intuitive that masks must do something. But even if they do trap droplets from coughs or sneezes (the reason that surgeons wear masks), they still allow tiny viruses to spread by aerosol even when worn correctly — and it’s unrealistic to expect most people to do so. While a mask may keep out some pathogens, its inner surface can also trap concentrations of pathogens that are then breathed back into the lungs. Whatever theoretical benefits there might be, in clinical trials the benefits have turned out to be either illusory or offset by negative factors. Oxford’s Tom Jefferson, the lead author of the Cochrane review, summed up the real science on masks: “There is just no evidence that they make any difference. Full stop.”

This lack of evidence would be enough to keep any new drug or medical treatment from being approved — much less one whose purported benefits had not even been weighed against the harmful side-effects. As the Cochrane reviewers disapprovingly note, few of the clinical trials of masks even bothered to collect data on the harmful effects on subjects. Most public-health officials and journalists have ignored the downsides, too, and social-media platforms have censored evidence of those harms. But there’s no doubt, from dozens of peer-reviewed studies, that masks cause social, psychological, and medical problems, including a constellation of maladies called “mask-induced exhaustion syndrome.”

Tierney notes that, despite all the data showing that COVID-19 poses virtually no risk to healthy children, “the CDC continues to recommend masking all [schoolchildren] in communities where infection rates are rising” and even “cruelly recommends masking everyone from age two on up”.

Incredibly, CDC Director Rochelle Walensky, when asked about the Cochrane studt at a congressional hearing, said: “Our masking guidance doesn’t really change with time. This is an important study but the Cochrane review only includes randomised clinical trials, and, as you can imagine, many of the randomised clinical trials were for other respiratory viruses.”

Tierney notes this is a statement “remarkable for its chutzpah as well as its scientific incoherence”.

One of the worst mistakes of the CDC and other lavishly funded federal agencies was the failure to conduct randomized clinical trials to determine whether their policies were effective. The Cochrane review had to rely on pandemic mask trials conducted in other countries — and now Walensky has the gall to complain that other countries didn’t do enough of the research that U.S. agencies shirked. She’s right that some of the trials involved other viruses, but why dismiss them as irrelevant to the coronavirus? And while one can always wish for more studies to include in a meta-analysis, that’s no excuse to ignore the best available evidence in favor of the shoddy science peddled by her agency to defend its policies.

Data analyst Ian Miller – author of Unmasked: The Global Failure of Covid Mask Mandates – prepared a graph for a previous City Journal article that Tierney reproduces in his article “because it’s a visual confirmation — from nationwide data, not clinical trials — of the conclusions in the Cochrane review”.

Worth reading in full.

Stop Press: Carl Heneghan and Tom Jefferson have written a post on their Substack about the reaction to the recent update of their Cochrane Review.

Tags: Cochrane reviewCOVID-19Face MasksMask MandatesPropagandaThe ScienceTom JeffersonUnited States

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27 Comments
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FerdIII
FerdIII
1 year ago

2004 and 2014 US led coups. The Maiden massacre by Ukes and the CIA. 15000 Russians slaughtered in Donbas post Maiden. Bio labs, money laundering. NATO, EU takeover of a former Russian state oblast which was never a country. And yet Russia is the bad actor. The US empire as evinced by Rona, fake science and endless wars is the locus of evil.

151
-81
sskinner
sskinner
1 year ago
Reply to  FerdIII

You sound a bit like a Marxist Revolutionary.

78
-47
Freddy Boy
Freddy Boy
1 year ago
Reply to  FerdIII

74 down ticks even with the last sentence being true 😵‍💫

34
-19
For a fist full of roubles
For a fist full of roubles
1 year ago
Reply to  Freddy Boy

The quantity of down tickers only means that a group of people don’t like Ferd’s conclusions, not that they are wrong.

31
-1
Kornea112
Kornea112
1 year ago
Reply to  FerdIII

Assuming the US and it’s allies, which includes the UK, are the only bad actors in the world is naive. What can be done in the name of national security is just about anything. These clandestine agencies operate above any laws or morality.

7
-1
huxleypiggles
huxleypiggles
1 year ago

https://off-guardian.org/2023/11/04/the-great-reset-part-2-a-camp-with-no-outside/

The second part of Simon Elmer’s look at their Great Reset and this looks at Digital Identity and the horrors this entails.

“At present, the UK Government is promoting Digital Identity in terms of ease of access, greater convenience and increased safety. So, under the Online Safety Act 2023, Digital Identity will be a requirement of access to the internet, not in order to censor what we can see, read and write but to protect children from pornography and grooming gangs.
Under the Elections Act 2022, it will be a requirement of voting, not in order to further discourage public participation in the electoral process but to stop illegal voting. It will be a requirement of receiving Universal Credit or, in the future, Universal Basic Income, not in order to force the immiserated and unemployed into obligatory retraining and work but to stop fraudulent benefit claims. It will be a requirement of gaining access to public transport, medical care, education and employment, not in order to control us whenever the World Health Organization declares a new pandemic but to protect the population from future health crises. It will be a requirement of travel and movement between nation states and within the UK, not in order to enforce the restrictions on our freedoms imposed by Agenda 2030 but to stop illegal immigration into the UK and save the planet from ‘global boiling’. It will be a requirement of opening a bank account, not to force us into opening a Digital Pound account but to stop financial crime.”

Last edited 1 year ago by huxleypiggles
42
-4
huxleypiggles
huxleypiggles
1 year ago
Reply to  huxleypiggles

This is actually a first rate article and more like the Simon Elmer I have learnt to appreciate.

13
-1
mandtmarsh
mandtmarsh
1 year ago

Toby, you’ve really got to keep Noah away from Ukraine issues.

DS credibility is at stake.

It’s like being back in London Calling, but with only James’s rantings presented.

Last edited 1 year ago by mandtmarsh
6
-43
For a fist full of roubles
For a fist full of roubles
1 year ago
Reply to  mandtmarsh

Has it really taken you nearly 2 years to make that comment?
It wasn’t worth the wait.

19
0
Ian Rons
Ian Rons
1 year ago
Reply to  mandtmarsh

Noah is making a rod for his own back here, because he hasn’t examined Katchanovski’s claims objectively (by having translations of videos, etc. done, as I have). Here’s a brief excerpt from an article I’ve been working on, which shows Katchanovski’s contempt for the facts. However, we know there was one gunman in the Hotel Ukraine on the February 20th 2014, he was seen shooting probably towards government units on rooftops towards the presidential buildings to the north west. It’s almost like Noah is being a cipher for Katchanovski by saying the idea of anyone with a gun in the Hotel Ukraine is a “conspiracy theory”.

—————————————————–

[His] next supposed witness is in the clip beginning at 2m49s. Katchanovski’s caption reads as follows:

A Hotel Ukraina staff member states that he witnessed three “snipers” with music intruments [sic] type weapon cases entering the hotel late on February 17 or early on February 18 [2014] when this hotel was in the area controlled by the Maidan Self-Defence.

To be clear, the Hotel Ukraine was never controlled by the Maidan protesters, as far as I have been able to establish from contemporaneous accounts and videos. It was used as a hotel, occupied by foreign journalists (BBC, RT, etc.) and others during this time. First aid was given to protesters in the lobby on February 20th, but Katchanovski has never established anything more. However, what Katchanovski fails to mention about this witness is that he states that he saw three individuals in uniform run into the hotel on February 17–18th and then down the stairs with cases resembling weapons cases. This is from a show broadcast by the popular Ukrainian channel TSN which, from what I can tell, presents the mainstream view that it was only government forces who were sniping protesters, and it’s clear from the video that these “snipers” were police or other government officers.

Last edited 1 year ago by Ian Rons
0
-22
For a fist full of roubles
For a fist full of roubles
1 year ago

It is probably a waste of time dissecting those events yet again.
Ukraine is doomed and it is only a matter of time before the West formally casts them adrift.
America is already building a blame narrative that absolves Biden from any culpability and fingers Zelensky, Zelensky is already blaming his generals for the failures and Aristovich is positioning himself to replace Zelensky.
I think a stock of popcorn is in order.

Last edited 1 year ago by For a fist full of roubles
16
0

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