https://www.americasfrontlinedoctors.co ... cience.pdfThe New England Journal of Medicine, April 1, 2020 www.NEJM.orgIt is also clear that masks serve symbolic roles. Masks arenot only tools, they are also talismansthat may help increase health care workers’ perceived sense of safety, well-being, and trust in their hospitals. Although such reactions may not be strictly logical, we are all subject to fear and anxiety,especially during times of crisis. One might arguethat fear and anxiety are better countered with data and education than with a marginally beneficial mask, particularly in light of the worldwide mask shortage, but it is difficult to get clinicians to hear this message in the heat of the current crisis. Expanded masking protocols’ greatest contribution may be to reduce the transmission of anxiety,over and above whatever role they may play in reducing transmission of Covid-19.Masks do notprevent virus respiratory illness.Size matters!Viruses are 50x smaller than bacteria and 1000x smaller than a hairsize of bacteria = 5 micrometer (5 μm)size of particles in wood smoke (wildfire): 0.4-0.7 micrometers (0.5 μm)size of virus= 0.1 micrometer (Influenza and SARS-CoV-2)(0.1μm)comparison: human hair is 100micrometers(100μm)(one million micrometers = one meter)CDC: “Cloth masks do not catch small harmful particles in smoke.”Transmission of SARS-CoV-2Droplets•Virus is transmitted through respiratory droplets produced when an infected person coughs, sneezes or talks. Larger respiratory droplets (>5 μm) remain in the air for only a short time and travel only short distances, generally <1 meter. They fall to the ground quickly.https://www.thelancet.com/journals/lanr ... ltext•This idea guides the CDC’s advice to maintain at least a 6-foot distance.•Virus-laden small (<5 μm) aerosolized droplets can remain in the air for at least 3 hours and travel long distances. •https://www.nejm.org/doi/pdf/10.1056/NE ... ls=trueAir currents•In air-conditioned environment these large droplets may travel farther.•However, ventilation —even the opening of an entrance door and a small window can dilute the number of small droplets to one half after 30 seconds.
(This study looked at droplets from uninfected persons). This is clinically relevant because poorly ventilated and populated spaces, like public transport and nursing homes, have high SARS-CoV-2 disease transmission despite physical distancing.https://www.thelancet.com/journals/lanr ... 9/fulltext
haven't i been saying it all along?
and more, here's the same info with regards to fires:
https://www.americasfrontlinedoctors.co ... rences.pdf
Oh Yeah, here's a Doctor weighing in:
Masks –Civil LibertiesSimone Gold, MD, JD, FABEMIt is clear to me as a physician-lawyer that the disinformation about both Covid-19 and the Constitution has caused us to turn a medical issue into a legal crisis.The scientific usefulness of a mask has been so aggressively overstated, and the foundational importance of the Constitution has been so aggressively understated, that wehave normalized people screaming obscenities at each other while hiking.The Covid virus was supposed to be contained in the kind of lab where people wear astronaut suits and go through triple sealed doors. It is a con of massive proportion to assert that now, having escaped those environs, a bandana will magically do the trick.After all, size matters.\The pore size of cloth face coverings range from ~ 20-100 microns. The Covid virus is 200-1000x smaller than that, at 0.1 microns. Putting up a chain link fence will not keep out a mosquito. Even the most esteemed medical journals admit their purpose is to calm anxiety. “Expanded masking protocols’ greatest contribution may be to reduce the transmission of anxiety ...” Of course, by knowledge or common sense observation, most Americans already know that masking everyone is superstition. But unlike privately carrying a lucky charm, mandating facial coverings requires the consent of the governed.Many cultures mandate clothing that appears totally irrational to outsiders. Never have those cultures pretended that there is a scientific basis for their clothing requirement. Their leaders rule, and their citizens accept, that their choice of clothing is due to religious or cultural preference.Not wearing a mask is not mere “personal choice” like deciding between a head covering or a t-shirt. It is a flashpoint for being a free human being who has consented to be governed but has not consented to be ruled. We do not consent to a masked America, because that is a fundamental change in American society, culture, norms, and rights.People who are apathetic toward their own liberty cannot eliminate Constitutional rights for those who are not. This is not the first (or last) time that people who believe in superstition are screaming the loudest. The Constitution exists precisely to protect all people during times of mass hysteria.The mask has become the most visible symbol of #socialconditioning to Americans determined to preserve individual freedom. Thus far most Americans have continued to give their consent to be governed. But you are trying our patience.