Comments by "Roger Scott Cathey" (@rogerscottcathey) on "Voters react to Trump virus test results" video.
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I have expanded links below in my comment for further scholarly articles.
I have pointed out science literature to show, just as Fauci showed by his initial position, there is scientific uncertainty regarding this issue. If you read the following papers, you'll realize that studies and articles are plentiful.
Mask wearing is not on the same level of science as sterile hand contact with internals, as in a delivery, a laparotomy or even excision of a mole. Laymen can be forgiven for ignorance of this topic and this issue, but scientists should know better. The public servants have chosen to ignore it evidently out of liability concerns more than anything else. Only it may actually do the reverse of what they expect.
As for why masks are still worn in surgeries: liability issues, whether or not the operating room, instruments or personnel had anything to do with a post-op infection, the effectiveness or not of masks is irrelevant, but exists as a weak point in a defense against a tort. Here is a relevant quote:
"Examination of the literature revealed much of the published work on the matter to be quite dated and often studies had poorly elucidated methodologies. As a result, we recommend caution in extrapolating their findings to contemporary surgical practice. However, overall there is a lack of substantial evidence to support claims that facemasks protect either patient or surgeon from infectious contamination. More rigorous contemporary research is needed to make a definitive comment on the effectiveness of surgical facemasks."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4480558/
Well other more rigorous studies were done.
The Studies of Surgical Mask Efficacy -- Arthur Firstenberg
http://12160.info/m/blogpost?id=2649739:BlogPost:2035264
https://muchadoaboutcorona.ca/face-masks-cause-wound-infection/
The following provide links to download pdfs of articles, no fee.
Neil W.M. Orr, Six month study of maskless surgery
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2493952/
PubMed Orr article:
https://pubmed.ncbi.nlm.nih.gov/19310816/
Goggles more important than masks
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1964349/
Springer open source article
on mask study -- Tunevall
https://link.springer.com/article/10.1007/BF01658736
Most medical journals now provide scholarly articles relating to covid free of charge at the present time.
We conceived a simple way to dispense with the issue by operating with an air hose over the back through silver ion sterilizing filters, an adaptation of the solution C.L. Kervran developed for reducing carbon monoxide poisoning to welders by breathing heated air while annealing iron plates.
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