Thank you so much. You are keeping me updated with great information. It's was sooooo upsetting last week when you got hacked. I am glad you are back. Keep up the great work 😊
Congratulations on the recovery of your accounts. Really appreciate the translation of double mask research here. I’d been hearing bits and pieces but couldn’t get to absorbing the full story with the demands of the family and work. Will get on it.
Re: your comment “We have three small beacons of light that transmission is reduced by about 60%”:
If that from a fully vaccinated person to a non-vaccinated person?
I ask because our school (where my daughter attends and my husband teaches) and many others seem to see teacher vaccination as a silver bullet to a full return to the classroom, while cutting many of the CDC recommended mitigation protocols. For instance, our school has poor ventilation, plans for kids to eat in the classroom, we have substandard cleaning policies (on the teachers to do it while also teaching hybrid).
Our Principal has been counseled by a parent that there’s no data to support ANY transmission “yet”. Seems misleading?
It's seeming more and more like the COVID vaccine will become something that needs to be refreshed every year, much like our current flu vaccines. Is that a fair assessment?
Once again, the Feds weren’t clear that the important issue is tight fit, not filtration level.
Here’s something that just came out - too bad I can’t paste the graphic.
Wearing two masks offers limited benefits in preventing the spread of droplets that could carry the coronavirus compared to one well-fitted disposable mask, according to a Japanese study that modeled the dispersal of droplets on a supercomputer.
The U.S. Centers for Disease Control and Prevention recommended double masking in February, saying Americans should wear a cloth mask over a disposable mask, the latest change to its recommendations on face coverings.
But a similar benefit can be had with just one correctly-fitted mask, according to the research carried out in Japan by the Riken research institute and Kobe University using Fugaku, the world’s fastest supercomputer co-developed with Fujitsu Ltd.
“While some improvement can be had wearing a cloth or urethane mask over a loosely-fitted nonwoven mask, there’s not a large difference when compared with one properly-fitted nonwoven mask,” the study said.
Wearing one tightly-fitted disposable mask prevented the spread of 85% of particles that could carry the virus, while wearing two masks lifted that only to 89%, the simulation found. One regularly fitted mask captured 81% of the droplets, while one loosely fitted mask captured just 69%.
However, the study noted that a tight fit and avoiding gaps in the mask was crucial to preventing the spread of droplets. The CDC guidance did note that the goal was to have the second mask push the edges of the inner mask against the face to provide a snug fit. Wearing two nonwoven masks was not recommended, the study said.
The supercomputer has previously been used to demonstrate what types of mask work best, and model the benefits of ventilation in preventing the spread of the virus.
Double-Masking Benefits Are Limited, Japan Supercomputer Finds
I’m still so confused why fully vaccinated people don’t need to quarantine if we don’t have good data about transmission from vaccinated ppl?
Thank you so much. You are keeping me updated with great information. It's was sooooo upsetting last week when you got hacked. I am glad you are back. Keep up the great work 😊
Thank you for clarifying the recommendations for vaccinated people. I was really confused reading them this morning.
Congratulations on the recovery of your accounts. Really appreciate the translation of double mask research here. I’d been hearing bits and pieces but couldn’t get to absorbing the full story with the demands of the family and work. Will get on it.
Re: your comment “We have three small beacons of light that transmission is reduced by about 60%”:
If that from a fully vaccinated person to a non-vaccinated person?
I ask because our school (where my daughter attends and my husband teaches) and many others seem to see teacher vaccination as a silver bullet to a full return to the classroom, while cutting many of the CDC recommended mitigation protocols. For instance, our school has poor ventilation, plans for kids to eat in the classroom, we have substandard cleaning policies (on the teachers to do it while also teaching hybrid).
Our Principal has been counseled by a parent that there’s no data to support ANY transmission “yet”. Seems misleading?
Does it make a difference if a person wears an actual double mask or a multi-layer single mask with a filter?
Hi! I couldn’t tell from the post or supporting articles. Does the double masking help the wearer or receiver by this %?
It's seeming more and more like the COVID vaccine will become something that needs to be refreshed every year, much like our current flu vaccines. Is that a fair assessment?
Re: Double Masking
Once again, the Feds weren’t clear that the important issue is tight fit, not filtration level.
Here’s something that just came out - too bad I can’t paste the graphic.
Wearing two masks offers limited benefits in preventing the spread of droplets that could carry the coronavirus compared to one well-fitted disposable mask, according to a Japanese study that modeled the dispersal of droplets on a supercomputer.
The U.S. Centers for Disease Control and Prevention recommended double masking in February, saying Americans should wear a cloth mask over a disposable mask, the latest change to its recommendations on face coverings.
But a similar benefit can be had with just one correctly-fitted mask, according to the research carried out in Japan by the Riken research institute and Kobe University using Fugaku, the world’s fastest supercomputer co-developed with Fujitsu Ltd.
“While some improvement can be had wearing a cloth or urethane mask over a loosely-fitted nonwoven mask, there’s not a large difference when compared with one properly-fitted nonwoven mask,” the study said.
Wearing one tightly-fitted disposable mask prevented the spread of 85% of particles that could carry the virus, while wearing two masks lifted that only to 89%, the simulation found. One regularly fitted mask captured 81% of the droplets, while one loosely fitted mask captured just 69%.
However, the study noted that a tight fit and avoiding gaps in the mask was crucial to preventing the spread of droplets. The CDC guidance did note that the goal was to have the second mask push the edges of the inner mask against the face to provide a snug fit. Wearing two nonwoven masks was not recommended, the study said.
The supercomputer has previously been used to demonstrate what types of mask work best, and model the benefits of ventilation in preventing the spread of the virus.
Double-Masking Benefits Are Limited, Japan Supercomputer Finds
https://www.bloomberg.com/news/articles/2021-03-05/double-masking-benefits-are-limited-japan-supercomputer-finds