Surgical Masks

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  #61  
Old 03-31-2020, 02:19 PM
retiredguy123 retiredguy123 is online now
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Originally Posted by JoMar View Post
He said that if you are infected or sick or experiencing symptoms it protects other people around you, it will also have a spacing impact by making you aware of people around you so you can keep your distance and if you touch something it may prevent you from touching your face. He also said that there is a psychological impact, it may make you calmer and feel safer. He did not say it would prevent you from getting it but it would help change behavior, make you feel better and give you an awareness which should keep you safer. Most of what I read is that the cloth masks will not seal so if someone coughs or sneezes near you it will find the gaps.
Basically, I agree that is what he said. But, it is very contrary to what other doctors have been saying for the past month or so. In fact, some are saying that the mask will have a negative psychological impact by creating a false sense of security. Obviously, nothing is going to totally prevent you from getting or spreading the virus. But, when you can spread the disease when you don't even have symptoms, wearing a mask will surely have some preventive effect on giving it to someone else. And, it will be a reminder to yourself to not touch your face. Also, the doctor told Dana Perino that he had ordered masks for his own use.
  #62  
Old 03-31-2020, 03:10 PM
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The issue of masks has been discussed in other threads. I posted a few studies on use of simple surgical masks vs N95 masks vs no masks before.

To summarize there have very few studies studying utility of masks. One from China showed no benefit to a simple surgical mask in a hospital setting. The N95 masks did work

A study from Canada in hospital nurses had both N95 and simple surgical masks equally effective or equally ineffective. There was no control group to see what the rate with no mask might have been.

Lastly a study from Australia where there was a sick child with flu like illness in the home. Some were given no mask, some a simple surgical mask, some an N95 mask with no specific fitting and the rate of the adults becoming ill was compared. The wearing of any mask was calculated to reduce contagion by 60-80% with no difference in success with either mask over the other. There are lots of imperfections in this study including this was intense exposure, poor compliance with keeping the mask on, and exposure to the sick child before entry into the study. But there was clear evidence that a simple mask in an intense exposure was much better than nothing.

I could not find any studies on wearing a mask in a community setting. But it makes sense to me that some barrier is better than no barrier. Whether the barrier works by keeping droplets from being inhaled or just as a reminder to not touch your face, or scares strangers away from you, whatever the mechanism. When the CDC says there is no evidence that wearing a mask will protect you from Covid in a community setting, that is 100% true. However the reverse is also true. There is no evidence that it won't help.

The CDC is correctly trying to advise on evidence of what does help.. hand washing, proven, avoid touching your face, strongly suggestive proof based on mode of entry, spacing based on knowledge of droplet mechanics. Mask.. no evidence or weak and contrary studies. But those who say it can't hurt, other than depriving medical personnel of PPE [a big point not to be ignored] have some merit in their argument.
  #63  
Old 03-31-2020, 04:10 PM
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There are studies, and there is common sense.
  #64  
Old 03-31-2020, 08:32 PM
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Originally Posted by retiredguy123 View Post
There are studies, and there is common sense.
So if there were a well designed study and the findings were the opposite of that which you might define as common sense, which would you believe? It was common sense that the earth was flat, that the sun went around the earth, that the stars and the planets effected our lives, that the devil caused epilepsy, that drawing blood cured illnesses, that white people were better than black or brown or yellow or red people. I know which I'd use to make my decisions when the two are in conflict.
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  #65  
Old 03-31-2020, 09:22 PM
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Originally Posted by blueash View Post
So if there were a well designed study and the findings were the opposite of that which you might define as common sense, which would you believe? It was common sense that the earth was flat, that the sun went around the earth, that the stars and the planets effected our lives, that the devil caused epilepsy, that drawing blood cured illnesses, that white people were better than black or brown or yellow or red people. I know which I'd use to make my decisions when the two are in conflict.
I agree. But, as an engineer, I trust that buildings are designed for safety. But, whenever I step into an elevator, I always look to see if there is a floor to step onto. To me, that is common sense.
  #66  
Old 04-01-2020, 04:23 AM
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img_0913-jpg

I knew keeping our WW2 gas masks would pay off one day!
Still have the three of them.
Problem is the filters have broken down, and you can't breath in them!
  #67  
Old 04-03-2020, 02:58 PM
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Originally Posted by MOMOH View Post
I agree that health care workers NEED them...but stop trying to tell me that they will work for health care workers, but they won't work for me.
I agree 100% with your post. I like most of us understand our medical professionals have to have them first because they work but please don’t tell if the General public wore N95 masks it would not have a positive effect on flattening curve. We plain ass got caught flat footed and can’t come up with the PPE for ordinary citizens so must rely on the near complete shutdown of economy.
  #68  
Old 04-03-2020, 03:13 PM
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Originally Posted by jebartle View Post
Meanwhile Wuhan (all use face mask) are recovering from virus. Must be a good idea.
How do you know for certain that everyone there uses a face mask? If you believe that because the Chinese government said it, I have some bridge property on I75 and I4 that I will let go real cheap.
  #69  
Old 04-03-2020, 03:44 PM
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A few days ago there was a post on this forum of a Youtube by the head South Korean doctor who specializes in fighting virus such as Coronavirus. I suggest anyone who has doubts of the efficiency of face masks should look at this Youtube. The only reason the Pense task force was not recommending face masks was because there weren't any masks available for the general population
On the issue of selling bridges are you having any luck..oh and by the way do you have any TP going cheap.
  #70  
Old 04-03-2020, 04:07 PM
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Quote:
Originally Posted by martine48 View Post
A few days ago there was a post on this forum of a Youtube by the head South Korean doctor who specializes in fighting virus such as Coronavirus. I suggest anyone who has doubts of the efficiency of face masks should look at this Youtube. The only reason the Pense task force was not recommending face masks was because there weren't any masks available for the general population
On the issue of selling bridges are you having any luck..oh and by the way do you have any TP going cheap.
See graph for info on how S Korea is doing vs the world

http___com-ft-imagepublish-upp-prod-us-s3-amazonaws-jpg
  #71  
Old 04-03-2020, 05:38 PM
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This has been posted before. Fauci equivilant in S Korea.

Hear what he has to say about the use and impact of masks:

Korea's Foremost Infectious Disease Expert (Dr. Fauci Counterpart)
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