Let’s see.. wasn’t it Lister who suggested washing hands by doctors in between deliveries to prevent puerperal fever? Simple.. didn’t understand it but it worked.
We know that in the 1920-40s Operating rooms were designed to have high open windows to allow fresh air to flow through - before air-conditioning. The air coming in may have been warm but it had been sterilized by the UV rays from the sun. Air-conditioning came along and we had a finite amount of air recirculating in the room and the standards were revised to identify the recirculation volumes.. not sterility of the air.
Some of us have been telling this story for >10 years. Way before COVID. It never gained traction. It wasn’t Pharma and didn’t have Billions attached as profits for… whoever.. Engineering standards didn’t really fully address it.. but we doctors in the “know” still pushed it on hospital administrators,
The following graphics sort of describes our efforts… think about it..
So now that COVID has come to stay, we find the shots were not vaccines at all but genetic modification tools. With some experiencing terrible side effects - even death. But instead of debating all the intricacies of that discussion, what about considering simple solutions first? Like Clean, fresh SAFE air to breathe. Don’t you think we should be asking that of our hospitals, schools, universities, manufacturing plants.. the list goes on…and on. Yet, the decision makers are not listening. If you have an inside, get them to listen! General Carlton and I will have more posts on this in the future.
For now, he has allowed me to place his executive briefing below. I may refer to it again in the future and will at that time have it saved and retrievable on a server.
Take a deep breath, jump in and read this to the end. It is not long.
Hat-tip to fellow surgeon — General PK Carlton…
“It is now accepted science that COVID 19 is an airborne, respiratory virus and spreads by airborne transmission, almost exclusively in the indoor space. It only took CDC and the White House 25 months and one million deaths to accept this fact. The close cousins, SARS and MERS, were proven to be airborne with a landmark article published in 2005 by Professor Li, from Hong Kong. So, we were very late to the correct causative mechanism but now, as of March 2022, it is an acknowledged fact. The question before us is how to best prevent such a future occurrence?
We can look to the history books and find another airborne respiratory illness to draw a direct correlation. The TB organism, although much larger, also is such a human causing illness spread by indoor air. Professor Biggs from the UK showed us with superb studies in the 1990s that there was a direct correlation with air changes per hour, ACH, in the indoor environment and illness from TB. Every time he doubled the air changes per hour in the indoor environment, he cut the frequency of illness by half. The sweet spot for this air change seems to be at about 6 air changes per hour, giving a 90% reduction in illness.
We, in the modern world have protected against the outdoor threats by using filters on our air conditioning systems, which also protect against most pollens, smoke, and other noxious outdoor contaminants. The average air change per hour in our homes is about 1 to 2 per hour. In our larger structures about the same. To reach the sweet spot, outlined at 6 ACH, in our indoor environment would create a tremendous cost disadvantage by having to heat and cool at a much higher rate. The obvious answer to that is to clean the air that has already been heated or cooled using more sophisticated filters and other devices. This would create an Equivalent Air Change per Hour, or EACH, that would protect our indoor air from most harmful agents.
Dr. Joe Allen, at the Harvard University, has clearly shown direct benefits from increasing the ACH or ECAH. When he doubled the ACH, he increased cognitive scores by 62% and cut absenteeism by 8%. When he tripled ACH, the scores were even better.
Historically, we only were concerned about an outside threat to our well-being- pollen, smoke, heat, and cold. We now face a threat to our well-being by an airborne respiratory illness carried by asymptomatic people. The COVID illness has a prodromal period of several days on average, so those persons so infected would not know they are ill for several days, and thus bring their illness inside our protected homes and larger structures. This is what I call the “inside” threat and it is real.
What we now need in our country, and the world, is protection from the new “inside threat”! Such protection should be pathogen agnostic, so not protective against anyone pathogen, but against all pathogens.
Dr Allen has clearly show us other benefits from increasing the ACH or EACH, so we get a double return our any such investment! Increased productivity by decreasing absenteeism, better cognitive function, and protection against any airborne threat the might present itself!
It is past time to implement such protective mechanisms in our homes and larger structures.”
Great post, but it wasn’t Lister, it was Semmelweis:
https://gaty.substack.com/p/this-month-in-the-american-medical