Do Masks Work?

[ThisIsMe]

They do that REALLY well but they also protect the wearer

From the CDC

Filtration for Wearer Protection​

Studies demonstrate that cloth mask materials can also reduce wearers’ exposure to infectious droplets through filtration, including filtration of fine droplets and particles less than 10 microns. The relative filtration effectiveness of various masks has varied widely across studies, in large part due to variation in experimental design and particle sizes analyzed. Multiple layers of cloth with higher thread counts have demonstrated superior performance compared to single layers of cloth with lower thread counts, in some cases filtering nearly 50% of fine particles less than 1 micron .14,17-29 Some materials (e.g., polypropylene) may enhance filtering effectiveness by generating triboelectric charge (a form of static electricity) that enhances capture of charged particles18,30 while others (e.g., silk) may help repel moist droplets31 and reduce fabric wetting and thus maintain breathability and comfort. In addition to the number of layers and choice of materials, other techniques can improve wearer protection by improving fit and thereby filtration capacity. Examples include but are not limited to mask fitters, knotting-and-tucking the ear loops of medical procedures masks, using a cloth mask placed over a medical procedure mask, and nylon hosiery sleeves.31-35

Top of Page

Human Studies of Masking and SARS-CoV-2 Transmission​

Data regarding the “real-world” effectiveness of community masking are limited to observational and epidemiological studies.

• An investigation of a high-exposure event, in which 2 symptomatically ill hair stylists interacted for an average of 15 minutes with each of 139 clients during an 8-day period, found that none of the 67 clients who subsequently consented to an interview and testing developed infection. The stylists and all clients universally wore masks in the salon as required by local ordinance and company policy at the time.36
• In a study of 124 Beijing households with > 1 laboratory-confirmed case of SARS-CoV-2 infection, mask use by the index patient and family contacts before the index patient developed symptoms reduced secondary transmission within the households by 79%.37
• A retrospective case-control study from Thailand documented that, among more than 1,000 persons interviewed as part of contact tracing investigations, those who reported having always worn a mask during high-risk exposures experienced a greater than 70% reduced risk of acquiring infection compared with persons who did not wear masks under these circumstances.38
• A study of an outbreak aboard the USS Theodore Roosevelt, an environment notable for congregate living quarters and close working environments, found that use of face coverings on-board was associated with a 70% reduced risk.39
• Investigations involving infected passengers aboard flights longer than 10 hours strongly suggest that masking prevented in-flight transmissions, as demonstrated by the absence of infection developing in other passengers and crew in the 14 days following exposure.40,41

At least ten studies have confirmed the benefit of universal masking in community level analyses: in a unified hospital system,42 a German city,43 two U.S. states,44, 45 a panel of 15 U.S. states and Washington, D.C.,46, 47 as well as both Canada48 and the U.S. 49-51 nationally. Each analysis demonstrated that, following directives from organizational and political leadership for universal masking, new infections fell significantly. Two of these studies46, 47 and an additional analysis of data from 200 countries that included the U.S.51 also demonstrated reductions in mortality. Another 10-site study showed reductions in hospitalization growth rates following mask mandate implementation 49. A separate series of cross-sectional surveys in the U.S. suggested that a 10% increase in self-reported mask wearing tripled the likelihood of stopping community transmission.53 An economic analysis using U.S. data found that, given these effects, increasing universal masking by 15% could prevent the need for lockdowns and reduce associated losses of up to $1 trillion or about 5% of gross domestic product.47

Sure, they are saying that NOW, but back in the past, their reasoning was that it was only for the protection of others.

Sure, I could understand that things will change as new science comes out, but this is the cdc, this is ALL they do. They really didn't know, back then, that a mask could protect the wearer? They are just figuring that out now?

Didn't they say that N95 was the really only effective mask? Now they are saying that those cloth masks that people are making at home are effective at stopping viruses?

 

[Lesh]

Sure, they are saying that NOW, but back in the past, their reasoning was that it was only for the protection of others.

Sure, I could understand that things will change as new science comes out, but this is the cdc, this is ALL they do. They really didn't know, back then, that a mask could protect the wearer? They are just figuring that out now?

Didn't they say that N95 was the really only effective mask? Now they are saying that those cloth masks that people are making at home are effective at stopping viruses?

From the beginning they said that masks combined with social distancing will greatly reduce the spread of the virus. They said that masks give SOME protection to the wearer but that the most important use was to prevent asymptomatic spread (which was scary as shit)

Turns out on closer examination they DO protect the wearer a lot more than previously thought. That makes you feel lied to? You're an idiot

From the CDC

Filtration for Wearer Protection​

Studies demonstrate that cloth mask materials can also reduce wearers’ exposure to infectious droplets through filtration, including filtration of fine droplets and particles less than 10 microns. The relative filtration effectiveness of various masks has varied widely across studies, in large part due to variation in experimental design and particle sizes analyzed. Multiple layers of cloth with higher thread counts have demonstrated superior performance compared to single layers of cloth with lower thread counts, in some cases filtering nearly 50% of fine particles less than 1 micron .14,17-29 Some materials (e.g., polypropylene) may enhance filtering effectiveness by generating triboelectric charge (a form of static electricity) that enhances capture of charged particles18,30 while others (e.g., silk) may help repel moist droplets31 and reduce fabric wetting and thus maintain breathability and comfort. In addition to the number of layers and choice of materials, other techniques can improve wearer protection by improving fit and thereby filtration capacity. Examples include but are not limited to mask fitters, knotting-and-tucking the ear loops of medical procedures masks, using a cloth mask placed over a medical procedure mask, and nylon hosiery sleeves.31-35

Top of Page

Human Studies of Masking and SARS-CoV-2 Transmission​

Data regarding the “real-world” effectiveness of community masking are limited to observational and epidemiological studies.

• An investigation of a high-exposure event, in which 2 symptomatically ill hair stylists interacted for an average of 15 minutes with each of 139 clients during an 8-day period, found that none of the 67 clients who subsequently consented to an interview and testing developed infection. The stylists and all clients universally wore masks in the salon as required by local ordinance and company policy at the time.36
• In a study of 124 Beijing households with > 1 laboratory-confirmed case of SARS-CoV-2 infection, mask use by the index patient and family contacts before the index patient developed symptoms reduced secondary transmission within the households by 79%.37
• A retrospective case-control study from Thailand documented that, among more than 1,000 persons interviewed as part of contact tracing investigations, those who reported having always worn a mask during high-risk exposures experienced a greater than 70% reduced risk of acquiring infection compared with persons who did not wear masks under these circumstances.38
• A study of an outbreak aboard the USS Theodore Roosevelt, an environment notable for congregate living quarters and close working environments, found that use of face coverings on-board was associated with a 70% reduced risk.39
• Investigations involving infected passengers aboard flights longer than 10 hours strongly suggest that masking prevented in-flight transmissions, as demonstrated by the absence of infection developing in other passengers and crew in the 14 days following exposure.40,41

At least ten studies have confirmed the benefit of universal masking in community level analyses: in a unified hospital system,42 a German city,43 two U.S. states,44, 45 a panel of 15 U.S. states and Washington, D.C.,46, 47 as well as both Canada48 and the U.S. 49-51 nationally. Each analysis demonstrated that, following directives from organizational and political leadership for universal masking, new infections fell significantly. Two of these studies46, 47 and an additional analysis of data from 200 countries that included the U.S.51 also demonstrated reductions in mortality. Another 10-site study showed reductions in hospitalization growth rates following mask mandate implementation 49. A separate series of cross-sectional surveys in the U.S. suggested that a 10% increase in self-reported mask wearing tripled the likelihood of stopping community transmission.53 An economic analysis using U.S. data found that, given these effects, increasing universal masking by 15% could prevent the need for lockdowns and reduce associated losses of up to $1 trillion or about 5% of gross domestic product.47

 

[ThisIsMe]

From the beginning they said that masks combined with social distancing will greatly reduce the spread of the virus. They said that masks give SOME protection to the wearer but that the most important use was to prevent asymptomatic spread (which was scary as shit)

Turns out on closer examination they DO protect the wearer a lot more than previously thought. That makes you feel lied to? You're an idiot

From the CDC

Filtration for Wearer Protection​

Studies demonstrate that cloth mask materials can also reduce wearers’ exposure to infectious droplets through filtration, including filtration of fine droplets and particles less than 10 microns. The relative filtration effectiveness of various masks has varied widely across studies, in large part due to variation in experimental design and particle sizes analyzed. Multiple layers of cloth with higher thread counts have demonstrated superior performance compared to single layers of cloth with lower thread counts, in some cases filtering nearly 50% of fine particles less than 1 micron .14,17-29 Some materials (e.g., polypropylene) may enhance filtering effectiveness by generating triboelectric charge (a form of static electricity) that enhances capture of charged particles18,30 while others (e.g., silk) may help repel moist droplets31 and reduce fabric wetting and thus maintain breathability and comfort. In addition to the number of layers and choice of materials, other techniques can improve wearer protection by improving fit and thereby filtration capacity. Examples include but are not limited to mask fitters, knotting-and-tucking the ear loops of medical procedures masks, using a cloth mask placed over a medical procedure mask, and nylon hosiery sleeves.31-35

Top of Page

Human Studies of Masking and SARS-CoV-2 Transmission​

Data regarding the “real-world” effectiveness of community masking are limited to observational and epidemiological studies.

• An investigation of a high-exposure event, in which 2 symptomatically ill hair stylists interacted for an average of 15 minutes with each of 139 clients during an 8-day period, found that none of the 67 clients who subsequently consented to an interview and testing developed infection. The stylists and all clients universally wore masks in the salon as required by local ordinance and company policy at the time.36
• In a study of 124 Beijing households with > 1 laboratory-confirmed case of SARS-CoV-2 infection, mask use by the index patient and family contacts before the index patient developed symptoms reduced secondary transmission within the households by 79%.37
• A retrospective case-control study from Thailand documented that, among more than 1,000 persons interviewed as part of contact tracing investigations, those who reported having always worn a mask during high-risk exposures experienced a greater than 70% reduced risk of acquiring infection compared with persons who did not wear masks under these circumstances.38
• A study of an outbreak aboard the USS Theodore Roosevelt, an environment notable for congregate living quarters and close working environments, found that use of face coverings on-board was associated with a 70% reduced risk.39
• Investigations involving infected passengers aboard flights longer than 10 hours strongly suggest that masking prevented in-flight transmissions, as demonstrated by the absence of infection developing in other passengers and crew in the 14 days following exposure.40,41

At least ten studies have confirmed the benefit of universal masking in community level analyses: in a unified hospital system,42 a German city,43 two U.S. states,44, 45 a panel of 15 U.S. states and Washington, D.C.,46, 47 as well as both Canada48 and the U.S. 49-51 nationally. Each analysis demonstrated that, following directives from organizational and political leadership for universal masking, new infections fell significantly. Two of these studies46, 47 and an additional analysis of data from 200 countries that included the U.S.51 also demonstrated reductions in mortality. Another 10-site study showed reductions in hospitalization growth rates following mask mandate implementation 49. A separate series of cross-sectional surveys in the U.S. suggested that a 10% increase in self-reported mask wearing tripled the likelihood of stopping community transmission.53 An economic analysis using U.S. data found that, given these effects, increasing universal masking by 15% could prevent the need for lockdowns and reduce associated losses of up to $1 trillion or about 5% of gross domestic product.47

Turns out on closer examination they DO protect the wearer a lot more than previously thought. That makes you feel lied to? You're an idiot

No, I don't feel lied to, but

Turns out on closer examination they DO protect the wearer a lot more than previously thought.

this is what I'm talking about. The cdc, and all of these medical professionals, virologists, etc, who spend their lives researching viral issues and prevention, and they say "oops, guess those masks DO work better than we thought"...I kinda figured they should know if masks protect against viruses, and even if they didn't for THIS virus, you would have thought they would have been able to find that out very quickly.

Its just that, in this whole thing, they tend to flip flop a lot on what they feel is the best course of action. Heck, even Fauci changed his story a couple of times on mask wearing.

 

[jc456]

Read above your last post retard

Why? FDA says what I posted!

 

[jc456]

From the beginning they said that masks combined with social distancing will greatly reduce the spread of the virus. They said that masks give SOME protection to the wearer but that the most important use was to prevent asymptomatic spread (which was scary as shit)

Turns out on closer examination they DO protect the wearer a lot more than previously thought. That makes you feel lied to? You're an idiot

From the CDC

Filtration for Wearer Protection​

Studies demonstrate that cloth mask materials can also reduce wearers’ exposure to infectious droplets through filtration, including filtration of fine droplets and particles less than 10 microns. The relative filtration effectiveness of various masks has varied widely across studies, in large part due to variation in experimental design and particle sizes analyzed. Multiple layers of cloth with higher thread counts have demonstrated superior performance compared to single layers of cloth with lower thread counts, in some cases filtering nearly 50% of fine particles less than 1 micron .14,17-29 Some materials (e.g., polypropylene) may enhance filtering effectiveness by generating triboelectric charge (a form of static electricity) that enhances capture of charged particles18,30 while others (e.g., silk) may help repel moist droplets31 and reduce fabric wetting and thus maintain breathability and comfort. In addition to the number of layers and choice of materials, other techniques can improve wearer protection by improving fit and thereby filtration capacity. Examples include but are not limited to mask fitters, knotting-and-tucking the ear loops of medical procedures masks, using a cloth mask placed over a medical procedure mask, and nylon hosiery sleeves.31-35

Top of Page

Human Studies of Masking and SARS-CoV-2 Transmission​

Data regarding the “real-world” effectiveness of community masking are limited to observational and epidemiological studies.

• An investigation of a high-exposure event, in which 2 symptomatically ill hair stylists interacted for an average of 15 minutes with each of 139 clients during an 8-day period, found that none of the 67 clients who subsequently consented to an interview and testing developed infection. The stylists and all clients universally wore masks in the salon as required by local ordinance and company policy at the time.36
• In a study of 124 Beijing households with > 1 laboratory-confirmed case of SARS-CoV-2 infection, mask use by the index patient and family contacts before the index patient developed symptoms reduced secondary transmission within the households by 79%.37
• A retrospective case-control study from Thailand documented that, among more than 1,000 persons interviewed as part of contact tracing investigations, those who reported having always worn a mask during high-risk exposures experienced a greater than 70% reduced risk of acquiring infection compared with persons who did not wear masks under these circumstances.38
• A study of an outbreak aboard the USS Theodore Roosevelt, an environment notable for congregate living quarters and close working environments, found that use of face coverings on-board was associated with a 70% reduced risk.39
• Investigations involving infected passengers aboard flights longer than 10 hours strongly suggest that masking prevented in-flight transmissions, as demonstrated by the absence of infection developing in other passengers and crew in the 14 days following exposure.40,41

At least ten studies have confirmed the benefit of universal masking in community level analyses: in a unified hospital system,42 a German city,43 two U.S. states,44, 45 a panel of 15 U.S. states and Washington, D.C.,46, 47 as well as both Canada48 and the U.S. 49-51 nationally. Each analysis demonstrated that, following directives from organizational and political leadership for universal masking, new infections fell significantly. Two of these studies46, 47 and an additional analysis of data from 200 countries that included the U.S.51 also demonstrated reductions in mortality. Another 10-site study showed reductions in hospitalization growth rates following mask mandate implementation 49. A separate series of cross-sectional surveys in the U.S. suggested that a 10% increase in self-reported mask wearing tripled the likelihood of stopping community transmission.53 An economic analysis using U.S. data found that, given these effects, increasing universal masking by 15% could prevent the need for lockdowns and reduce associated losses of up to $1 trillion or about 5% of gross domestic product.47

Except….the fda says

While a surgical mask may be effective in blocking splashes and large-particle droplets, a face mask, by design, does not filter or block very small particles in the air that may be transmitted by coughs, sneezes, or certain medical procedures. Surgical masks also do not provide complete protection from germs and other contaminants because of the loose fit between the surface of the mask and your face

 

[danielpalos]

Hey all you fking mask lovers….

N95 Respirators, Surgical Masks, Face Masks, & Barrier Face Coverings

N95 respirators, surgical masks, face masks, and barrier face coverings offer different levels of protection for the wearer from particles.

www.fda.gov

While a surgical mask may be effective in blocking splashes and large-particle droplets, a face mask, by design, does not filter or block very small particles in the air that may be transmitted by coughs, sneezes, or certain medical procedures. Surgical masks also do not provide complete protection from germs and other contaminants because of the loose fit between the surface of the mask and your face

Viruses don't travel on their own, right-wingers.

 

[jc456]

Viruses don't travel on their own, right-wingers.

And it’s documented masks don’t stop them

 

[danielpalos]

And it’s documented masks don’t stop them

It is even more documented that masks are better than nothing at reducing the spread.

 

[krichton]

Final 2019/20 Flu Numbers​

The final data on flu season 2019/2020 was released by the CDC in April as COVID-19 continued to spread throughout the United States.

Between October 1, 2019 and April 4, 2020, the flu resulted in:

• 39 to 56 million illnesses
• 410,000 to 740,000 hospitalizations
• 24,000 to 62,000 deaths
• 195 pediatric deaths

Flu Season Numbers for 2020/21

This year's flu season was more unique that any year before because of COVID-19. Here are the final 2020/21 flu season numbers and final flu season numbers for 2019/20.

hive.rochesterregional.org

So you're trying to sell that the CDC could go from giving very broad flu number ranges one year to very exacting numbers the next. Would you be interested in some nice sea side property in AZ as well?

.

Can I ask you to answer a simple question. Which job to count or estimate would be easier? When you have 292 deaths and 2124 cases of the flu, or when you have tens of millions of cases and hundreds of thousands of hospitalizations leading to tens of thousands of deaths? Go!

 

[Dadoalex]

View attachment 528664

Try making sense.
Telling the truth.
Takes few words and needs less explanation.

 

[DukeU]

Try making sense.
Telling the truth.
Takes few words and needs less explanation.

Ok, simple........... No mask and no vaccination, and no problems.

 

[AntonToo]

Ok, simple........... No mask and no vaccination, and no problems.

Umm yes there is a problem dummy - Covid-19.

 

[DukeU]

Umm yes there is a problem dummy - Covid-19.

I was speaking about myself, dummy.

 

[AntonToo]

I was speaking about myself, dummy.

Even if unmasked, unvaccinated, self-absorbed nuts like you don't end up in the hospital yourself you are still likely to catch Covid at some point and spread it to others.

From public policy perspective no-vancination and no-masking in the face of a deadly pandemic is the height of stupidity.

 

[Toro]

A friend of mine who is a distributor of masks and cleaning chemicals to hospitals and other medical institutions, and has been for 25 years, said to me that the N-95 and KN-95 masks are "bullet-proof."

 

[DukeU]

and spread it to others.

Try to absorb this.......

CDC report shows vaccinated people can spread COVID-19 ...​

 

[AntonToo]

Try to absorb this.......

CDC report shows vaccinated people can spread COVID-19 ...​

Exactly, hence the renewed guidance for masking in crowded places, even for vaccinated. Right?

 

[DukeU]

Hence the renewed calls for masking, even for vaccinated. Duh?

Get vaccinated.................Put your masks on...............Vaccinations................Masks................

 

[danielpalos]

Exactly, hence the renewed guidance for masking in crowded places, even for vaccinated. Right?

The only difference is the unvaccinated can have worse adverse symptoms and more likely to have the pathogen "evolve" by trying to rely on "natural herd immunity". India already proved it.

And,

Bennett: Vaccine refusers are endangering the entire country

PM warns another lockdown is possible if one million holdouts aren't immunized, says aim is 'to have an open and safe country'

www.timesofisrael.com

 

[jc456]

Exactly, hence the renewed guidance for masking in crowded places, even for vaccinated. Right?

Masks don’t stop viruses