Technology1 min ago
Face Masks
It appears that the government has now decided that face masks have some efficacy and are suggesting it would be a condition when lock down ends for workers to wear them and when using Public Transport
Our London Mayor is now saying he will INSIST the public wear them. About 10 days ago his LT workers were crying out for them and he told them,at the time, they were not necessary but gave them gloves instead.
https:/
Our London Mayor is now saying he will INSIST the public wear them. About 10 days ago his LT workers were crying out for them and he told them,at the time, they were not necessary but gave them gloves instead.
https:/
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// If a covid positive person was going to cough near you........or whether you weren't, which would you choose peter?//
if someone were to wee down my leg rather than use a lavatory
or take a dog off its lead and throw it at me would I rather .....
if you are going for evidence based practice the evidence is pretty strong for - try something else as well....
as for someone sniffily saying that there are too many experts on AB - I worked in Porton Down - and all this argy bargy is peanuts if you really want to keep a dangerous pathogen at bay .....
I mean tomus - if someone was going to spray Novichok at you, would really think - oh that silk scarf will tide me over until I can get a haz chem mask from somewhere .....
or would you think o god I am going to DDDDIIIIEEE!
if someone were to wee down my leg rather than use a lavatory
or take a dog off its lead and throw it at me would I rather .....
if you are going for evidence based practice the evidence is pretty strong for - try something else as well....
as for someone sniffily saying that there are too many experts on AB - I worked in Porton Down - and all this argy bargy is peanuts if you really want to keep a dangerous pathogen at bay .....
I mean tomus - if someone was going to spray Novichok at you, would really think - oh that silk scarf will tide me over until I can get a haz chem mask from somewhere .....
or would you think o god I am going to DDDDIIIIEEE!
A week or so ago, advice was that the more people with the virus that you are in contact with, the worse the virus will attack you. If you have the virus and wear a mask, does it follow that you will be infecting yourself worse because you will be breathing it in and out? Not sure if I’m explaining what I’m thinking very well
I didn't see that, puzzled. Is that right? I haven't read all the thread yet, but I would imagine it depends on the type of mask. The ones my daughter is using at work are very heavy, and nothing like the ones I have seen on people out and about.
I would also hope, that when more information is found out, it would be publicised, so with something like this, I would expect information and advice to change over time.
I would also hope, that when more information is found out, it would be publicised, so with something like this, I would expect information and advice to change over time.
There was a suggestion on tv yesterday that a triple thickness fabric face covering may give some additional protection over and above social distancing. It would need to be close fitting capable of being washed at 60 degrees and every time you went out.
I have been online found a mask pattern and modified it with a n ultra fine weave fibre interlining and shaped them to fit closely. The masks are cotton but the lining is denser than the fabric I remember from theatres. They can be boil washed
if we are advised to cover our faces I will resort to wearing them... At least they are interesting...
I have been online found a mask pattern and modified it with a n ultra fine weave fibre interlining and shaped them to fit closely. The masks are cotton but the lining is denser than the fabric I remember from theatres. They can be boil washed
if we are advised to cover our faces I will resort to wearing them... At least they are interesting...
I posted this link to tests on masks in an earlier thread. It is testing for the flu virus, but I would imagine the results are still relevant.
https:/
Can anyone who thinks that masks don’t help point me to the results of a similar study that would back up their claim. I haven't managed to find one, and would be very interested to read one. Thanks.
https:/
Can anyone who thinks that masks don’t help point me to the results of a similar study that would back up their claim. I haven't managed to find one, and would be very interested to read one. Thanks.
This is a simple DIY method to manufacture a Protective Face Mask.
It is to Protect. Not to look pretty.
Any fool can make one
https:/
It is to Protect. Not to look pretty.
Any fool can make one
https:/
NickorWan here you go.... https:/
Thanks, woofgang, interesting, but I am even more confused now. There are lots of references in the link you gave, and having glanced through a few they seem to say that masks do help to some degree. Here some excerpts.
Author Summary
The relative importance of direct and indirect contact, large droplet spray, and aerosols as modes of influenza transmission is not known but is important in devising effective interventions. Surgical facemasks worn by patients are recommended by the CDC as a means of reducing the spread of influenza in healthcare facilities. We sought to determine the total number of viral RNA copies present in exhaled breath and cough aerosols, whether the RNA copies in fine particle aerosols represent infectious virus, and whether surgical facemasks reduce the amount of virus shed into aerosols by people infected with seasonal influenza viruses. We found that total viral copies detected by molecular methods were 8.8 times more numerous in fine (≤5 µm) than in coarse (>5 µm) aerosol particles and that the fine particles from cases with the highest total number of viral RNA copies contained infectious virus. Surgical masks reduced the overall number of RNA copies by 3.4 fold. These results suggest an important role for aerosols in transmission of influenza virus and that surgical facemasks worn by infected persons are potentially an effective means of limiting the spread of influenza.
Conclusions The study indicates a potential benefit of medical masks for source control, but is limited by small sample size and low secondary attack rates. Larger trials are needed to confirm efficacy of medical masks as source control.
Home made masks, and to a lesser degree surgical masks, are unlikely to confer much protection against transmission of small particles like droplet nuclei, but as the reproduction number of influenza may not be very high [14] a small reduction in transmissibility of the virus may be sufficient for reducing the reproduction number to a value smaller than 1 and thus extinguishing the epidemic [15].
Surgical masks likely have some utility as source control (meaning the wearer limits virus dispersal to another person) from a symptomatic patient in a healthcare setting to stop the spread of large cough particles and limit the lateral dispersion of cough particles.
Author Summary
The relative importance of direct and indirect contact, large droplet spray, and aerosols as modes of influenza transmission is not known but is important in devising effective interventions. Surgical facemasks worn by patients are recommended by the CDC as a means of reducing the spread of influenza in healthcare facilities. We sought to determine the total number of viral RNA copies present in exhaled breath and cough aerosols, whether the RNA copies in fine particle aerosols represent infectious virus, and whether surgical facemasks reduce the amount of virus shed into aerosols by people infected with seasonal influenza viruses. We found that total viral copies detected by molecular methods were 8.8 times more numerous in fine (≤5 µm) than in coarse (>5 µm) aerosol particles and that the fine particles from cases with the highest total number of viral RNA copies contained infectious virus. Surgical masks reduced the overall number of RNA copies by 3.4 fold. These results suggest an important role for aerosols in transmission of influenza virus and that surgical facemasks worn by infected persons are potentially an effective means of limiting the spread of influenza.
Conclusions The study indicates a potential benefit of medical masks for source control, but is limited by small sample size and low secondary attack rates. Larger trials are needed to confirm efficacy of medical masks as source control.
Home made masks, and to a lesser degree surgical masks, are unlikely to confer much protection against transmission of small particles like droplet nuclei, but as the reproduction number of influenza may not be very high [14] a small reduction in transmissibility of the virus may be sufficient for reducing the reproduction number to a value smaller than 1 and thus extinguishing the epidemic [15].
Surgical masks likely have some utility as source control (meaning the wearer limits virus dispersal to another person) from a symptomatic patient in a healthcare setting to stop the spread of large cough particles and limit the lateral dispersion of cough particles.
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