Corona Virus #6

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   / Corona Virus #6 #521  
There seem to have been a couple of questions recently about why health officials are saying N95 masks aren't necessary. I don't know if this has been answered or not, but here goes:

An N95 mask blocks 95% of all particles that are 0.3 microns (10^-6 m) or larger. However, virus-laden droplets are produced when you talk, breathe, cough, and sneeze. The size distribution of these droplets are well established. Sneezing produces "large" droplets, around 100 micron and higher. Coughing, speaking, and breathing create droplets in the range of 1-100 micron, with a concentrated peak around 5 micron.

Now, at first blush, it may seem like the masks will do a good job, therefore, of filtering out these droplets. The actual answer, is yes and no. As droplets enter the air, depending upon the relative humidity of the surroundings, they can quickly (a matter of seconds) evaporate down to sub micron levels. Most viruses are on the order of nanometers (10^-9 m) in size. So, one small submicron fluid droplet can have many viruses suspended inside. These smaller droplets are what cause the concern. Larger droplets quickly fall to the floor due to their sedimentation velocity and pose little risk unless someone coughs or sneezes directly onto you. Smaller droplets (submicron) can stay suspended in the air for multiple hours. Recent research has also shown that Coranaviruses can stay viable (alive) in droplets in the air for 30 minutes - 3 hours. This is one of the biggest concerns for transmission. These smaller droplets are much smaller than 0.3 micron, so even with a perfectly fitted respirator/mask, it is useless to keep you from breathing these smaller particles. This is why the 6 foot rule is in place. It is believed that 6 feet will provide a large enough distance that even when these droplets are dispersed into the surroundings, the concentration will be so low due to mixing with the surrounding air that the risk of infection is greatly reduced.

However, if YOU are sick a mask will prevent you from dispelling infected droplets. Remember, the masks filter 95% of anything larger than 0.3 microns, and the droplets coming out of your mouth are almost universally greater than 1 micron, as there isn't time for them to evaporate before they hit the mask/filter. So, if you think you may be sick, or are worried about possibly infecting someone else, definitely DO wear a mask.

So, the efficacy of a mask is not in protecting yourself, but in protecting others. So, wearing it yourself does very little. But, if everyone else wears one, YOU will be protected.

Very well explained!!!!

My primary concern is not getting infected, that is secondary. My primary concern is not infecting someone else.
 
   / Corona Virus #6 #522  
This morning I decided to start reading up on the supplements that I use or have tried in the past that are setting in the house especially the ones that may be antiviral to some degree. One that I flipped off for years until about 2014 when it became clear if I did not turn my health around on a dime that ability to get out of the house and function was Vitamin D.

My level was like 22 ng in 2013 and only 28 ng in 2014 then that was when I got serious about talking my Vitamin D3 supplement and worked to find the best option for me.

18 fewer hospital days if given 5, IU of vitamin D while ventilated in ICU – RCT June 216 |

The above link caught my attention with all this talk about need for ventilators for some to live that develop COVID-19.

Vitamin D and the anti-viral state

The above link caught my attention due to the line: "Cell culture experiments support the thesis that vitamin D has direct anti-viral effects particularly against enveloped viruses. " The virus causing COVID-19 is an enveloped virus.

Vitamin D can inhibit enveloped virus (e.g. Herpes, Zoster, Epstein, Hepatitis, Ebola) – March 211 |

The above link contains a lot of other links. There are links to the relationship of Vit D and many disease states on the left side of the page. I have been working on understanding more about Vit D3 which is actually a hormone as you can read in the link below.

Vitamin D | You and Your Hormones from the Society for Endocrinology
 
   / Corona Virus #6 #523  
I don't think it has sunk in to most Americans that there are forecasts that a third to a half of the population will test positive by summer. And only isolation can level out the forecasted extreme peak that would overwhelm all health care by some large multiple - like 10x as many sick as there are treatment facilities. Anything that anyone can do to soften this extreme impact seems to me to be worthwhile.

Very true....people will learn what the word triage means...maybe when it actually is affecting them or a loved one. There will NOT be enough beds or ventilators for everyone.

Triage (/ˈtriːɑːʒ, triˈɑːʒ/) is the process of determining the priority of patients' treatments based on the severity of their condition.
 
   / Corona Virus #6 #524  
Very well explained!!!!

My primary concern is not getting infected, that is secondary. My primary concern is not infecting someone else.

Richard I think we get your point but if you make not getting infected your primary concern then you CAN NOT infect someone else. :)

Yes we all know we are at risk of spreading COVID-19 because we can be infected and not know it as is your point.
 
   / Corona Virus #6 #525  
I don't think it has sunk in to most Americans that there are forecasts that a third to a half of the population will test positive by summer. And only isolation can level out the forecasted extreme peak that would overwhelm all health care by some large multiple - like 10x as many sick as there are treatment facilities. Anything that anyone can do to soften this extreme impact seems to me to be worthwhile.

Yup ... and a side effect is that healthcare services for issues OTHER THAN corona virus are going to be severely stressed or compromised or simply unavailable ...
 
   / Corona Virus #6 #526  
Yup ... and a side effect is that healthcare services for issues OTHER THAN corona virus are going to be severely stressed or compromised or simply unavailable ...

This is a good point...people staying home may be inclined to do some repair jobs etc. that require some risk...like using a step ladder etc...everyone needs to be extra careful not to injure themselves or others...the last thing one need is a trip to the ER...and that is not a good thing...now more than ever...
 
   / Corona Virus #6 #528  
thanks Buppies. That was a kindness.

I read the helpful explanation of masks above and was left with the core part about submicron particles which clearly could get through a N95 mask.
But even though they are smaller, they look kind of sticky in the pictures...wouldn't at least some or most get caught on the mesh going through?
so you can't bet the farm on masks but seems to be much better than nothing. I came away with the impression if you weren't wearing something at least as good
as a paint respirator, with the vapor cartridges, you weren't fully protected. I have something even better than that but who wants to wear it in public?

if we all wore them, much safer. That's why every pic of China shows everyone wearing them.



Folks with beards have a real problem here. No seal, no protection.
 
   / Corona Virus #6 #529  
Has anyone else noticed a reduction in tele-market and spam calls?
 
   / Corona Virus #6 #530  
How do we safely handle cash?
 
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