There is a lot of information circulating about the efficacy of masks - here are some references for educational purposes!
𝐀 𝐜𝐥𝐮𝐬𝐭𝐞𝐫 𝐫𝐚𝐧𝐝𝐨𝐦𝐢𝐬𝐞𝐝 𝐭𝐫𝐢𝐚𝐥 𝐨𝐟 𝐜𝐥𝐨𝐭𝐡 𝐦𝐚𝐬𝐤𝐬 𝐜𝐨𝐦𝐩𝐚𝐫𝐞𝐝 𝐰𝐢𝐭𝐡 𝐦𝐞𝐝𝐢𝐜𝐚𝐥 𝐦𝐚𝐬𝐤𝐬 𝐢𝐧 𝐡𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞 𝐰𝐨𝐫𝐤𝐞𝐫𝐬
"Moisture retention, reuse of cloth masks and poor filtration 𝐦𝐚𝐲 𝐫𝐞𝐬𝐮𝐥𝐭 𝐢𝐧 𝐢𝐧𝐜𝐫𝐞𝐚𝐬𝐞𝐝 𝐫𝐢𝐬𝐤 𝐨𝐟 𝐢𝐧𝐟𝐞𝐜𝐭𝐢𝐨𝐧. Further research is needed to inform the widespread use of cloth masks globally. However, as a precautionary measure, cloth masks should not be recommended for HCWs, particularly in high-risk situations, and guidelines need to be updated."
MacIntyre, C Raina et al. “A cluster randomised trial of cloth masks compared with medical masks in healthcare workers.” BMJ open vol. 5,4 e006577. 22 Apr. 2015, doi:10.1136/bmjopen-2014-006577
"The widespread use of cloth masks by healthcare workers may actually put them at increased risk of respiratory illness and viral infections and their global use should be discouraged, according to a UNSW study."
"Cloth masks: Dangerous to your health?" Summary: Respiratory infection is much higher among healthcare workers wearing cloth masks compared to medical masks, research shows. Cloth masks should not be used by workers in any healthcare setting, authors of the new study say."
𝗔 𝗦𝘁𝘂𝗱𝘆 𝗼𝗻 𝗜𝗻𝗳𝗲𝗰𝘁𝗶𝘃𝗶𝘁𝘆 𝗼𝗳 𝗔𝘀𝘆𝗺𝗽𝘁𝗼𝗺𝗮𝘁𝗶𝗰 𝗦𝗔𝗥𝗦-𝗖𝗼𝗩-𝟮 𝗖𝗮𝗿𝗿𝗶𝗲𝗿𝘀
"Conclusion In summary, all the 455 contacts were excluded from SARS-CoV-2 infection and 𝘄𝗲 𝗰𝗼𝗻𝗰𝗹𝘂𝗱𝗲 𝘁𝗵𝗮𝘁 𝘁𝗵𝗲 𝗶𝗻𝗳𝗲𝗰𝘁𝗶𝘃𝗶𝘁𝘆 𝗼𝗳 𝘀𝗼𝗺𝗲 𝗮𝘀𝘆𝗺𝗽𝘁𝗼𝗺𝗮𝘁𝗶𝗰 𝗦𝗔𝗥𝗦-𝗖𝗼𝗩-𝟮 𝗰𝗮𝗿𝗿𝗶𝗲𝗿𝘀 𝗺𝗶𝗴𝗵𝘁 𝗯𝗲 𝘄𝗲𝗮𝗸."
In other words, the study concludes it appears unlikely one may "catch" the (alleged) illness from an "asymptomatic carrier" (a media buzz word pharma marketing term for a healthy person with a functioning immune system that handles an illness without any significant perceived symptoms).
Cloth: “Will not protect the wearer against airborne transmissible infectious agents due to loose fit and lack of seal or inadequate filtration.”
Surgical masks: “Will not protect the wearer against airborne transmissible infectious agents due to loose fit and lack of seal or inadequate filtration.”
Respirators: “Require proper training, fit testing, availability of appropriate medical evaluations and monitoring, cleaning, and oversight by a knowledgeable staff member.”
I really don’t know what else to say. The fear itself is becoming the real pandemic. I’ll just keep sharing the facts and praying hard.
*For those trying to find fault in this source, Keep in mind the word “intended.” The masks are “intended” to work, but they don’t. They cannot use they “will” because it’s a lie. Wording is very important. Pay attention to that and you won’t have to attack everything so quickly. Will save you and I a lot of time." (Erin Marie, RN)
𝗦𝘂𝗿𝗴𝗲𝗼𝗻 𝗴𝗲𝗻𝗲𝗿𝗮𝗹: 𝗗𝗮𝘁𝗮 𝗱𝗼𝗲𝘀𝗻'𝘁 𝗯𝗮𝗰𝗸 𝘂𝗽 𝘄𝗲𝗮𝗿𝗶𝗻𝗴 𝗺𝗮𝘀𝗸𝘀 𝗶𝗻 𝗽𝘂𝗯𝗹𝗶𝗰 𝗮𝗺𝗶𝗱 𝗰𝗼𝗿𝗼𝗻𝗮𝘃𝗶𝗿𝘂𝘀 𝗽𝗮𝗻𝗱𝗲𝗺𝗶𝗰 "U.S. Surgeon General Jerome Adams said on 'Fox & Friends' Tuesday that “the data doesn't show” that wearing masks in public will help people during the coronavirus pandemic. 'It's important to understand that we are looking at the data every single day and we make the best recommendations to the American people we can based on what we know,' Adams said on Tuesday. 'What the World Health Organization [WHO] and the CDC [The Centers for Disease Control and Prevention] have reaffirmed in the last few days is that they do not recommend the general public wear masks.'"
Cloth masks compared to medical masks and no mask https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/#__ffn_sectitle
Mask deoxygenation https://www.ncbi.nlm.nih.gov/pubmed/18500410
Physiological impact of n95 https://clinicaltrials.gov/ct2/show/NCT00173017
Chronic hypoxia https://www.ncbi.nlm.nih.gov/pubmed/18331781
Cluster randomized controlled trial to examine medical mask use as source control for people with respiratory illness
Efficacy of cloth face masks https://www.ncbi.nlm.nih.gov/pubmed/27531371
Increased risk of coronavirus https://www.news-medical.net/news/20200315/Wearing-masks-may-increase-your-risk-of-coronavirus-infection-expert-says.aspx
Dangers of wearing masks in the heat https://thevaccinereaction.org/2020/06/dangers-of-wearing-masks-in-the-heat-and-humidity/
Rational use of face masks in the covid19 pandemic lancet respiratory medicine https://www.thelancet.com/journals/lanres/article/PIIS2213-2600(20)30134-X/fulltext
Effectiveness of surgical and cotton masks in blocking SARS CoV-2 https://www.acpjournals.org/doi/10.7326/M20-1342
Cluster randomized trial of cloth mask https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/?fbclid=IwAR3FFxMLNF-ANdmtORtrDS7ZWHZhX-5-N16PkZAzo5YlgPbFUfIDBwYJEzg
Cloth masks and efficacy https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/?fbclid=IwAR0E0f1DMu-SKcG3ca_1QD5hwQgekKZCLTHsAdt2MRxxrkX8qMvYQcr1y8E
Mask wearing and more with multiple citations and links directly from CDC website https://wwwnc.cdc.gov/eid/article/26/5/19-0994_article
Carbon dioxide re-breathing
Signs and symptoms of carbon Dioxide poisoning https://www.emedicinehealth.com/wilderness_carbon_dioxide_toxicity/symptom.htm
University of Minnesota study and advise on use of masks during COVID19 outbreak: with 52CITATIONS (research studies) linked below article https://www.cidrap.umn.edu/news-perspective/2020/04/commentary-masks-all-covid-19-not-based-sound-data
Masks don't work, a review of the science with multiple citations https://www.researchgate.net/publication/340570735_Masks_Don't_Work_A_review_of_science_relevant_to_COVID-19_social_policy
No evidence of wearing a mask protecting others/self https://thehill.com/changing-america/well-being/prevention-cures/491725-who-no-evidence-wearing-a-mask-can-protect
Dr Blaylock: face masks pose SERIOUS RISKS to the healthy https://www.technocracy.news/blaylock-face-masks-pose-serious-risks-to-the-healthy/
OHIO DOH Dr Amy Acton: potential for INCREASED INFECTION with mask wearing https://www.forbes.com/sites/tarahaelle/2020/02/29/no-you-do-not-need-face-masks-for-coronavirus-they-might-increase-your-infection-risk/
Should you wear a mask? Expert testimony begins around 7:45-8:00: https://youtu.be/czjAebDKsEw
Man suffers pneumothorax while running in china with mask on www.foxnews.com/health/chinese-jogger-coronavirus-mask-suffers-burst-lung-wuhan-hospital-says
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Reusability of facemasks during an influenza pandemic. News conference, Apr 27, 2006
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Cherrie JW, Apsley A, Cowie H, et al. Effectiveness of face masks used to protect Beijing residents against particulate air pollution.Occup Environ Med 2018 Jun;75(6):446-52
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Bowen LE. Does that face mask really protect you?Appl Biosaf 2010 Jun 1;15(2):67-71
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van der Sande M., Teunis P, Sabel R. Professional and home-made face masks reduce exposure to respiratory infections among the general population. PLOS One 2008 Jul 9;3(7):0002618
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Chughtai AA, Seale H, MacIntyre CR. Use of cloth masks in the practice of infection control—evidence and policy gaps. Int J Infect Control 2013 Jun;9(3)
Kellogg WH, MacMillan G. An experimental study of the efficacy of gauze face masks.Am J Public Health 1920;10(1):34-42
Saunders-Hastings P, Crispo JA, Sikora L, et al. Effectiveness of personal protective measures in reducing pandemic influenza transmission: A systematic review and meta-analysis.Epidemics 2017 Sep;20:1-20
Cowling B J, Zhou Y, Ip DKM, et al. Face masks to prevent transmission of influenza virus: a systematic review. Epidemiol Infect 2010 Jan 22;138(4):449-56
bin‐Reza F, Chavarrias VL, Nicoll A, et al. The use of masks and respirators to prevent transmission of influenza: a systematic review of the scientific evidence. Influenza Other Respir Viruses 2011 Dec 11;6(4):257-67
MacIntyre CR, Zhang Y, Chughtai AA, et al. Cluster randomised controlled trial to examine medical mask use as source control for people with respiratory illness.BMJ Open 2016 Dec 30;6(12):e012330
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Driessche KV, Hens N, Tilley P, et al. Surgical masks reduce airborne spread of Pseudomonas aeruginosa in colonized patients with cystic fibrosis.Am J Respir Crit Care Med 2015 Oct 1;192(7):897-9
Milton DK, Fabian MP, Cowling BJ, et al. Influenza virus aerosols in human exhaled breath: particle size, culturability, and effect of surgical masks.PLoS Pathog 2013 Mar;9(3):e1003205
Stockwell RE, Wood ME, He C, et al. Face masks reduce the release of Pseudomonas aeruginosa cough aerosols when worn for clinically relevant periods.Am J Respir Crit Care Med 2018 Nov 15;198(10):1339-42
Hui DS, Chow BK, Chu L, et al. Exhaled air dispersion during coughing with and without wearing a surgical or N95 mask.PloS One 2012;7(12)e50845
Dharmadhikari AS, Mphahlele M, Stoltz A, et al. Surgical face masks worn by patients with multidrug-resistant tuberculosis: impact on infectivity of air on a hospital ward.Am J Respir Crit Care Med 2012 May 15;185(10):1104-9
Sung AD, Sung JA, Thomas S, et al. Universal mask usage for reduction of respiratory viral infections after stem cell transplant: a prospective trial.Clin Infect Dis 2016 Oct 15;63(8):999-1006
MacIntyre CR, Seale H, Dung TC, et al. A cluster randomised trial of cloth masks compared with medical masks in healthcare workers.BMJ Open 2015 Apr 22;5(4):e006577
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bin Reza 2012 (we have Bin-Reza 2011)
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