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Publications Videos

Masks Don’t Work: A review of science relevant to COVID-19 social policy – ResearchGate

Masks and respirators do not work. There have been extensive randomized controlled trial (RCT) studies, and meta-analysis reviews of RCT studies, which all show that masks and respirators do not work to prevent respiratory influenza-like illnesses, or respiratory illnesses believed to be transmitted by droplets and aerosol particles. Furthermore, the relevant known physics and biology, which I review, are such that masks and respirators should not work. It would be a paradox if masks and respirators worked, given what we know about viral respiratory diseases: The main transmission path is long-residence-time aerosol particles (< 2.5 μm), which are too fine to be blocked, and the minimum-infective-dose is smaller than one aerosol particle. The present paper about masks illustrates the degree to which governments, the mainstream media, and institutional propagandists can decide to operate in a science vacuum, or select only incomplete science that serves their interests. Such recklessness is also certainly the case with the current global lockdown of over 1 billion people, an unprecedented experiment in medical and political history.

https://www.researchgate.net/publication/340570735_Masks_Don’t_Work_A_review_of_science_relevant_to_COVID-19_social_policy

Update: The researchgate.net link no longer works but an archive on archive.org is available:

https://web.archive.org/web/20200531184631/https://www.researchgate.net/publication/340570735_Masks_Don’t_Work_A_review_of_science_relevant_to_COVID-19_social_policy

Update 2 July 2020: Denis Rancourt talks about his paper in this video.

Update 30 July 2020: Del Bigtree’s channel has been censored by YouTube. His video with Denis Rancourt has been mirrored below.

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News

Why is Sweden not recommending face masks to the public?

Face masks in public spaces do not provide any greater protection to the population,” Johan Carlson from the Swedish Public Health Agency Folkhälsomyndigheten said at a press conference on May 13th.

Swedish health authorities argue that keeping a distance, washing your hands, not touching your face, and staying at home if you experience any symptoms are still the best ways to halt the spread of the coronavirus. There is a concern that wearing face masks would make people follow these guidelines less strictly.

  • There is a risk of a false sense of security.
  • The virus can gather in the mask and when you take it off, the virus can be transferred to your hands and thereby spread further.
  • Worn properly, masks might reduce the spread of infection if worn by those with asymptomatic infections, even if they might not protect the wearer themselves.

https://www.thelocal.se/20200514/explained-why-is-sweden-not-recommending-face-masks-to-the-public

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Opinion

Face Masks Pose Serious Risks To The Healthy – Russell Blaylock MD

As for the scientific support for the use of face mask, a recent careful examination of the literature, in which 17 of the best studies were analyzed, concluded that, “ None of the studies established a conclusive relationship between mask/respirator use and protection against influenza infection.”1

When a person is infected with a respiratory virus, they will expel some of the virus with each breath. If they are wearing a mask, especially an N95 mask or other tightly fitting mask, they will be constantly rebreathing the viruses, raising the concentration of the virus in the lungs and the nasal passages. We know that people who have the worst reactions to the coronavirus have the highest concentrations of the virus early on. And this leads to the deadly cytokine storm in a selected number.

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Publications

Respiratory consequences of N95-type Mask usage in pregnant healthcare workers—a controlled clinical study – Antimicrobial Resistance and Infection Control (2015)

Results
Exercising at 3 MET while breathing through N95-mask materials reduced mean tidal volume (TV) by 23.0 % (95 % CI −33.5 % to −10.5 %, p < 0.001) and lowered minute ventilation (VE) by 25.8 % (95 % CI −34.2 % to −15.8 %, p < 0.001), with no significant change in breathing frequency compared to breathing ambient air. Volumes of oxygen consumption (VO2) and carbon dioxide expired (VCO2) were also significantly reduced; VO2 by 13.8 % (95 % CI −24.2 % to −3 %, p = 0.013) and VCO2 by 17.7 %, (95 % CI −28.1 % to −8.6 %, p = 0.001). Although no changes in the inspired oxygen and carbon dioxide concentrations were demonstrated, breathing through N95-mask materials during low intensity work (3 MET) reduced expired oxygen concentration by 3.2 % (95 % CI: −4.1 % to −2.2 %, p < 0.001), and increased expired carbon dioxide by 8.9 % (95 % CI: 6.9 % to 13.1 %; p <0.001) suggesting an increase in metabolism. There were however no changes in the maternal and fetal heart rates, finger-tip capillary lactate levels and oxygen saturation and rating of perceived exertion at the work intensity investigated.

Conclusions
Breathing through N95 mask materials have been shown to impede gaseous exchange and impose an additional workload on the metabolic system of pregnant healthcare workers, and this needs to be taken into consideration in guidelines for respirator use. The benefits of using N95 mask to prevent serious emerging infectious diseases should be weighed against potential respiratory consequences associated with extended N95 respirator usage.

https://aricjournal.biomedcentral.com/articles/10.1186/s13756-015-0086-z

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Publications

Effect of a surgical mask on six minute walking distance – PubMed (2017)

Results: Distance was not modified by the mask (P=0.99). Dyspnea variation was significantly higher with surgical mask (+5.6 vs. +4.6; P<0.001) and the difference was clinically relevant. No difference was found for the variation of other parameters.

Conclusion: Wearing a surgical mask modifies significantly and clinically dyspnea without influencing walked distance.

https://pubmed.ncbi.nlm.nih.gov/29395560/

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Publications

The physiological impact of wearing an N95 mask during hemodialysis as a precaution against SARS in patients with end-stage renal disease – PubMed (2004)

Results: Thirty nine patients (23 men; mean age, 57.2 years) were recruited for participation in the study. Seventy percent of the patients showed a reduction in partial pressure of oxygen (PaO2), and 19% developed various degrees of hypoxemia. Wearing an N95 mask significantly reduced the PaO2 level (101.7 +/- 12.6 to 92.7 +/- 15.8 mm Hg, p = 0.006), increased the respiratory rate (16.8 +/- 2.8 to 18.8 +/- 2.7/min, p < 0.001), and increased the occurrence of chest discomfort (3 to 11 patients, p = 0.014) and respiratory distress (1 to 17 patients, p < 0.001). Baseline PaO2 level was the only significant predictor of the magnitude of PaO2 reduction (p < 0.001).

Conclusion: Wearing an N95 mask for 4 hours during HD significantly reduced PaO2 and increased respiratory adverse effects in ESRD patients.

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News

Pakistan accused of cover-up over fresh polio outbreak – The Guardian (2019)

From Thu 7 Nov 2019:

After the strand was eliminated from Pakistan five years ago, all P2 vaccines should have been collected from hospitals and clinics and not used. However, it appears a P2 vaccine was administered accidentally and a child became a carrier for the disease. Tests on the new cases allegedly show the children are all carrying a vaccine-derived form of the disease .

…However, it is understood that, instead of publicly declaring the renewed outbreak and beginning a public vaccination campaign, a “secret” vaccination campaign will begin on Monday in Rawalpindi and surrounding cities in an attempt at containment.

https://web.archive.org/web/20191107145605/https://www.theguardian.com/global-development/2019/nov/07/pakistan-accused-of-cover-up-over-fresh-polio-outbreak

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Publications

Polio eradication: a complex end game – BMJ (2012)

Polio vaccines are not only ineffective in preventing paralysis, they carry the risk of contamination with many harmful adventitious microorganisms, of which only some monkey viruses have been researched in more detail. Many other potentially dangerous microorganisms remain unaddressed.

https://web.archive.org/web/20201207083415/https://www.bmj.com/content/344/bmj.e2398/rr/599724

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News

Ministers lose fight to stop payouts over swine flu jab narcolepsy cases – The Guardian

Dozens of British children who developed narcolepsy as a result of a swine flu vaccine could be compensated after the high court rejected a government appeal to withhold payments.

Six million people in Britain, and more across Europe, were given the Pandemrix vaccine made by GlaxoSmithKline during the 2009-10 swine flu pandemic, but the jab was withdrawn after doctors noticed a sharp rise in narcolepsy among those who received it.

https://www.theguardian.com/science/2017/feb/09/ministers-lose-fight-to-stop-payouts-in-swine-flu-jab-narcolepsy-cases