Cofty, tell your surgeon to not bother with masks. Maybe no one will cough or sneeze. lol
Flu is finally back in Scotland - after its 2 year holiday!
by BoogerMan 19 Replies latest social current
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cofty
Masks block droplets not aerosol - covid is an aerosol virus. Coughing and sneezing is only a problem if you are very close to somebody with the virus. The problem with covid is breathing the same air indoors. Normal surgical masks do almost nothing to block covid. Cloth masks do absolutely nothing.
- First the experts told us not to wear masks because they are totally ineffective against covid
- Then they weaponised fear, locked everybody indoors and shut down the economy
- Then they opened the economy and invited everybody to go back to work and leisure
- But everybody was scared shitless
- Then they said don't worry - you can wear a mask
- Then they said wear a mask or else!
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peacefulpete
As for the changing of recommendations regarding masks for the general public, the answer is not secret nor nefarious. The masks were in short supply and the healthcare workers with greatest exposure risk needed them. At the time COVID was not pandemic and the general population was not statistically at great risk. There was wide spread hoarding if you recall. I had N95s from my autobody paint use and these were donated to local hospital who had only a few dozen left.Fauci Explains Why We Didn't Wear Masks COVID-19 Began - TheStreet
When this situation shifted, both availability improved and the disease had spread justifying general population use, the directive changed. Was this done perfectly, nothing ever is.
Regarding the value of masks now we know the virus can spread via very small particles, this is near the bottom of the science article, read this article in full:
Once the mechanisms leading to airborne transmission are fully understood—acknowledging that transmission by aerosols is largest at close range—it becomes clear there is an overlap in precautions and mitigation measures for both droplets and aerosols (such as distancing and masks), but extra considerations must be taken into account for mitigating aerosol transmission at both short and long ranges. These include attention to ventilation, airflows, mask fit and type, air filtration, and UV disinfection, as well as distinguishing measures between indoor and outdoor environments. Although our knowledge is still increasing, enough is already known to add protective measures to better protect against airborne transmission of respiratory viruses, noting that “droplet precautions” are not replaced but instead expanded.
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cofty
Mathematical modeling of exposure to respiratory pathogens supports that transmission is dominated by short-range aerosol inhalation at most distances within 2 m of the infectious person, and droplets are only dominant when individuals are within 0.2 m when talking or 0.5 m when coughing
This is EXACTLY what I said.
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peacefulpete
Read the whole article.
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cofty
I did.
Droplets from coughing or sneezing VERY close to somebody are a possible means of transmission but the real issue is aerosol indoors.
Cloth masks were performative bullshit.
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peacefulpete
The initial velocity of respiratory aerosols depends on how they are generated within and released from the respiratory tract; for example, coughing produces droplets and aerosols released at higher velocities than speaking ....
Additionally, when respiratory aerosols are exhaled, these particles are contained in an exhaled humid plume with its own speed and trajectory, which also play a role in determining the final reachable distance and direction ...
.... removal from air by deposition on surfaces.
Again: there is an overlap in precautions and mitigation measures for both droplets and aerosols (such as distancing and masks)
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cofty
New Cochrane study results 30 Jan 2023. Meta-analysis of 15 relevant studies.
'wearing a mask may make little to no difference in how many people caught a flu-like illness/COVID-like illness (9 studies; 276,917 people); and probably makes little or no difference in how many people have flu/COVID confirmed by a laboratory test (6 studies; 13,919 people).'
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peacefulpete
Our confidence in these results is generally low to moderate for the subjective outcomes related to respiratory illness, but moderate for the more precisely defined laboratory-confirmed respiratory virus infection, related to masks and N95/P2 respirators. The results might change when further evidence becomes available. Relatively low numbers of people followed the guidance about wearing masks or about hand hygiene, which may have affected the results of the studies.
The high risk of bias in the trials, variation in outcome measurement, and relatively low adherence with the interventions during the studies hampers drawing firm conclusions
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DATA-DOG
Omg you’re obtuse… 🙄
DD