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https://www.zerohedge.com/covid-19/uk-study-finds-no-evidence-face-masks-protect-vulnerable-against-covid
 A report published by the UK Health Security Agency (UKHSA) found that “no evidence could be presented” to prove medical-grade face masks protected vulnerable people from COVID.
 https://stevekirsch.substack.com/p/the-debate-is-over-masks-do-not-work
 "These findings suggest that mask use might pose a yet unknown threat to the user instead of protecting them, making mask mandates a debatable epidemiologic intervention." https://journals.lww.com/md-journal/Fulltext/2022/02180/The_Foegen_effect__A_mechanism_by_which_facemasks.60.aspx?fbclid=IwAR19Mp7_ON7p05BoJkwy66It1MwsSnJbIjiqVFBFaage7eFRtwLL27XKIMg
 "no significant relationship between mask mandates and case rates"
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4118566
 U.K. Study Fails to Prove Masks Work in Schools https://www.bloomberg.com/news/articles/2022-01-07/masks-in-schools-provide-weak-shield-against-covid-study-shows?utm_source=facebook&cmpid=socialflow-facebook-business&utm_campaign=socialflow-organic&utm_content=business&utm_medium=social
 Covid cases in lockdown/mask vs no-lockdown/mask states/countries: https://imgur.com/a/sQzfKGb
 https://stevekirsch.substack.com/p/masks-dont-work
 https://stevekirsch.substack.com/p/do-masks-work
 ‘We included nine trials (of which eight were cluster‐RCTs) comparing medical/surgical masks versus no masks to prevent the spread of viral respiratory illness (two trials with healthcare workers and seven in the community). There is low certainty evidence from nine trials (3507 participants) that wearing a mask may make little or no difference to the outcome of influenza‐like illness (ILI) compared to not wearing a mask (risk ratio (RR) 0.99, 95% confidence interval (CI) 0.82 to 1.18. There is moderate certainty evidence that wearing a mask probably makes little or no difference to the outcome of laboratory‐confirmed influenza compared to not wearing a mask (RR 0.91, 95% CI 0.66 to 1.26; 6 trials; 3005 participants).’ https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006207.pub5/full
 ‘The literature revealed relevant adverse effects of masks in numerous disciplines. In this paper, we refer to the psychological and physical deterioration as well as multiple symptoms described because of their consistent, recurrent and uniform presentation from different disciplines as a Mask-Induced Exhaustion Syndrome (MIES). We objectified evaluation evidenced changes in respiratory physiology of mask wearers with significant correlation of O2 drop and fatigue (p < 0.05), a clustered co-occurrence of respiratory impairment and O2 drop (67%), N95 mask and CO2 rise (82%), N95 mask and O2 drop (72%), N95 mask and headache (60%), respiratory impairment and temperature rise (88%), but also temperature rise and moisture (100%) under the masks. Extended mask-wearing by the general population could lead to relevant effects and consequences in many medical fields.’ https://www.mdpi.com/1660-4601/18/8/4344
 “After reviewing extensive expert evidence submitted by both ONA and St. Michael's Hospital, which was the lead case for the TAHSN group, Arbitrator William Kaplan, in his September 6 decision, found that St. Michael's VOM policy is "illogical and makes no sense" and "is the exact opposite of being reasonable." https://markets.businessinsider.com/news/stocks/ona-wins-second-decision-on-unreasonable-and-illogical-vaccinate-or-mask-influenza-policies-1027517384?op=1
 "Experimental Assessment of Carbon Dioxide Content in Inhaled Air With or Without Face Masks in Healthy Children" https://jamanetwork.com/journals/jamapediatrics/fullarticle/2781743 - " We measured means (SDs) between 13 120 (384) and 13 910 (374) ppm of carbon dioxide in inhaled air under surgical and filtering facepiece 2 (FFP2) masks, which is higher than what is already deemed unacceptable by the German Federal Environmental Office by a factor of 6."
 Jacobs, J. L. et al. (2009) “Use of surgical face masks to reduce the incidence of the common cold among health care workers in Japan: A randomized controlled trial,” American Journal of Infection Control, Volume 37, Issue 5, 417 – 419. https://www.ncbi.nlm.nih.gov/pubmed/19216002 - N95-masked health-care workers (HCW) were significantly more likely to experience headaches. Face mask use in HCW was not demonstrated to provide benefit in terms of cold symptoms or getting colds.
 Cowling, B. et al. (2010) “Face masks to prevent transmission of influenza virus: A systematic review,” Epidemiology and Infection, 138(4), 449-456. https://www.cambridge.org/core/journals/epidemiology-and-infection/article/face-masks-to-prevent-transmission-of-influenza-virus-a-systematic-review/64D368496EBDE0AFCC6639CCC9D8BC05 - None of the studies reviewed showed a benefit from wearing a mask, in either HCW or community members in households (H). See summary Tables 1 and 2 therein.
 bin-Reza et al. (2012) “The use of masks and respirators to prevent transmission of influenza: a systematic review of the scientific evidence,” Influenza and Other Respiratory Viruses 6(4), 257–267. https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1750-2659.2011.00307.x - “There were 17 eligible studies. … None of the studies established a conclusive relationship between mask/respirator use and protection against influenza infection.”
 Smith, J.D. et al. (2016) “Effectiveness of N95 respirators versus surgical masks in protecting health care workers from acute respiratory infection: a systematic review and meta-analysis,” CMAJ Mar 2016 https://www.cmaj.ca/content/188/8/567 - “We identified six clinical studies … . In the meta-analysis of the clinical studies, we found no significant difference between N95 respirators and surgical masks in associated risk of (a) laboratory-confirmed respiratory infection, (b) influenza-like illness, or (c) reported work-place absenteeism.”
 Offeddu, V. et al. (2017) “Effectiveness of Masks and Respirators Against Respiratory Infections in Healthcare Workers: A Systematic Review and Meta-Analysis,” Clinical Infectious Diseases, Volume 65, Issue 11, 1 December 2017, Pages 1934–1942, https://academic.oup.com/cid/article/65/11/1934/4068747 - “Self-reported assessment of clinical outcomes was prone to bias. Evidence of a protective effect of masks or respirators against verified respiratory infection (VRI) was not statistically significant”; as per Fig. 2c therein