Mask wearing does help reduce community transmission
- Thread starter Notch7
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all of those sources are just promoting the lie.
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Most don't even mention covid19. One, at least, was retracted because the conclusions were wrong.
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Thank you, I've developed a good system for filtering bullsh@t.
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you havent read any of those studies, youve just cut n pasted it from your aunt Nellies facebook page
and they dont support what you claim
a quick look at some of them:
1 its conclusion state:
"Based on observational evidence from the previous SARS epidemic included in the previous version of our Cochrane review we recommend the use of masks combined with other measures."
Physical interventions to interrupt or reduce the spread of respiratory viruses. Part 1 - Face masks, eye protection and person distancing: systematic review and meta-analysis
OBJECTIVE To examine the effectiveness of eye protection, face masks, or person distancing on interrupting or reducing the spread of respiratory viruses. DESIGN Update of a Cochrane review that included a meta-analysis of observational studies during the SARS outbreak of 2003. DATA SOURCES...
www.medrxiv.org
2 and this one, is FA to do with covid:
Preliminary report on surgical mask induced deoxygenation during major surgery
Preliminary report on surgical mask induced deoxygenation during major surgery
This study was undertaken to evaluate whether the surgeons’ oxygen saturation of hemoglobin was affected by the surgical mask or not during major oper…
www.sciencedirect.com
3 this one is from 2010 and has FA to do with covid
Simple Respiratory Protection—Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20–1000 nm Size Particles
Simple Respiratory Protection—Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20–1000 nm Size Particles
Abstract. A shortage of disposable filtering facepiece respirators can be expected during a pandemic respiratory infection such as influenza A. Some individuals
academic.oup.com
4 another has nothing to do with covid
Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings—Personal Protective and Environmental Measures
5 this one is about flu
N95 Respirators vs Medical Masks for Preventing Influenza Among Health Care PersonnelA Randomized Clinical Trial
N95 Respirators vs Medical Masks for Preventing Laboratory-Confirmed Influenza in Health Care Personnel
This cluster randomized clinical trial compares the effect of N95 respirators vs medical masks worn by health care personnel for prevention of workplace-acquired influenza and other viral respiratory infections in geographically diverse, high-exposure outpatient settings.
jamanetwork.com
Do actually have any studies that support what you claim or are just posting garbage links
Ive just browsed it -most of it is totally irrelevant
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"In conclusion, there is a limited evidence base to support the use of masks and/or respirators in healthcare or community settings. Mask use is best undertaken as part of a package of personal protection, especially including hand hygiene in both home and healthcare settings."
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"Despite the current limited scientific data detailing their effectiveness, we support the wearing of face coverings by the public when mandated and when in close contact with people whose infection status they don't know."
Oops...
cumulative graphs do not show a trend
oh and covid case numbers have nothing to do with efficacy of covid vaccines
please go and look at hospitalisation rates over time
then come back
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"According to recommendations by the editors of Annals of Internal Medicine, we are retracting our article, “Effectiveness of Surgical and Cotton Masks in Blocking SARS-CoV-2. A Controlled Comparison in 4 Patients,” which was published at Annals.org on 6 April 2020 (1).
We had not fully recognized the concept of limit of detection (LOD) of the in-house reverse transcriptase polymerase chain reaction used in the study (2.63 log copies/mL), and we regret our failure to express the values below LOD as “<LOD (value).” The LOD is a statistical measure of the lowest quantity of the analyte that can be distinguished from the absence of that analyte. Therefore, values below the LOD are unreliable and our findings are uninterpretable. Reader comments raised this issue after publication."
Oh dear...
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Of course it does. You claimed to have posted things which demonstrate that masks are useless and should not be worn.
But the author said the exact opposite, "Despite the current limited scientific data detailing their effectiveness, we support the wearing of face coverings by the public when mandated and when in close contact with people whose infection status they don't know."
And you say it was just the author's personal opinion so it doesn't count!
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