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CDC Internal Delta Variant Presentation

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Re: CDC Internal Delta Variant Presentation

#41

Post by qbasic_forever »

jimbob45 wrote: post #25
ramraj07 wrote: post #21

Will anyone hold the CDC accountable for its screwups? Even misinformation by Fox News pales in comparison to the travesty that was CDCs recommendation to remove mask mandates for vaccinated people. If purported expert agencies can’t suppress their politics and idiocy and be cautious why can we ever expect the public to be careful?

Did comparable agencies around the world make different or similar decisions in similar situations? Just because they were wrong doesn’t mean that they didn’t make the best decision possible with the available information and given circumstances.

Yes, Israel reinstated its mask mandate immediately after they saw cases rise a month ago and their own studies indicated the delta variant was impacting vaccine efficacy or even transmitting from vaccinated persons: https://www.timesofisrael.com/israel-to-reinstate-indoor-mas... Much of the data in this CDC slide deck is actually from these Israeli studies.

I will also note Israel has already approved a third dose of mRNA booster shots for 60+ year old people based on the data they have seen with waning efficacy. The CDC as of now currently says boosters are not necessary for Americans "at this time"...

Re: CDC Internal Delta Variant Presentation

#42

Post by lefrenchy »

AdrianB1 wrote: post #23
lefrenchy wrote: post #17

Earlier quoted context omitted.

Well it’s a good thing homicides aren’t a contagious disease then right? If not it might be under the jurisdiction of the Center For Disease Control.

Google for 'gun violence epidemic' and you will find lots of high profile results pretending it is.

I mean it is, it’s not a contagious pathogen.

Unless you think it’s normal that American society has more mass shootings than I can keep track of in recent memory then i’d call it an epidemic.

People walking into churches, schools, concerts, etc… and indiscriminately killing people is a deep sickness in American society.

Re: CDC Internal Delta Variant Presentation

#43

Post by busymom0 »

mike_d wrote: post #26
colechristensen wrote: post #19

Earlier quoted context omitted.

The masks most people wear basically only diffuse sneezes and coughs which makes immediate droplet transfer lower. A piece of ordinary cloth on your face does not filter smog, does not prevent any airborne infection droplets from reaching you, essentially only lowers the chance of your cough hitting somebody else. You need an N95 or better to really do anything to protect yourself. Also even if you have a high grade…

This should help make it clear: https://science.sciencemag.org/content/sci/368/6498/1422/F1.... Masks do more to protect others than they do you. Which is why we are safest when everyone wears a mask.

Unless we are talking about fitted N95 masks, CDC used to say the opposite even about transmission to others: "There is limited evidence for their effectiveness in preventing influenza virus transmission either when worn by the infected person for source control or when worn by uninfected persons to reduce exposure."

https://www.cdc.gov/eid/article/26/5/19-0994_article

> Disposable medical masks (also known as surgical masks) are loose-fitting devices that were designed to be worn by medical personnel to protect accidental contamination of patient wounds, and to protect the wearer against splashes or sprays of bodily fluids (36). There is limited evidence for their effectiveness in preventing influenza virus transmission either when worn by the infected person for source control or when worn by uninfected persons to reduce exposure. Our systematic review found no significant effect of face masks on transmission of laboratory-confirmed influenza.

Re: CDC Internal Delta Variant Presentation

#44

Post by dnzkw »

arpa wrote: post #13
vsnf wrote: post #6

Slide 21 >Given higher transmissibility and current vaccine coverage, universal masking is essential to reduce transmission of the Delta variant Well that's very sad, if not entirely unexpected. How long will we be living in a masked world?

what's wrong with masked world? it helps stop the spread of other airborne diseases as well, it filters out (to some extent) the smog, facial recognition software has more trouble, so we regain at least some privacy...

I'm tired of living in this new depressive, sterile world with no emotions. Also masks make it harder to breathe.

And why not say it. The fact the government is forcing me to wear a mask indoors makes me want to get rid of it asap.

Re: CDC Internal Delta Variant Presentation

#45

Post by rayiner »

trainsplanes wrote: post #39
carnitas wrote: post #16

Earlier quoted context omitted.

Oh I don’t know, crushing depression, psychological atmosphere of fear, no biggy

Wild how westerners make these dystopian associations, while in Asia it’s just part of basic hygiene, like expecting people to wipe their ass or wash their hands.

Where in Asia is everyone walking around masked unless they’re actively sick? In Tokyo you can always see a few masked people, but that’s totally different than everyone being masked.

Re: CDC Internal Delta Variant Presentation

#46

Post by trainsplanes »

rayiner wrote: post #45
trainsplanes wrote: post #39

Earlier quoted context omitted.

Wild how westerners make these dystopian associations, while in Asia it’s just part of basic hygiene, like expecting people to wipe their ass or wash their hands.

Where in Asia is everyone walking around masked unless they’re actively sick? In Tokyo you can always see a few masked people, but that’s totally different than everyone being masked.

Everyone in Japan is currently walking around masked.

People here also walk around with masks during allergy season, or doing flu season even when they’re not sick. In Taiwan and Vietnam I saw (and wore) masks on days when the air was particularly dirty.

Re: CDC Internal Delta Variant Presentation

#47

Post by throwawaysea »

A couple questions for those who might know:

1. Slide 16 mentions India but the details aren't clear. Is this study's focus on breakthrough cases and spreading of Delta based off data in India? I know India was where Delta originated and that it blindsided them because COVID measures that worked well for previous variants did not work anymore - so does that simply mean that the most data on Delta happens to be in India due to the larger cumulative number of Delta cases there? And if so how applicable is that data to the US, given that the type of vaccine administered is different and may have different (reduced) efficacy compared to Pfizer or Moderna, and since other factors (population size, density, healthcare quality, etc) may also be different and influence the data?

2. The graphs on Slides 20-21 are unclear to me. My interpretation is that they have four different scenarios and are using the bottom-left one, which assumes a higher R0 representing the Delta variant, and a lower assumption of natural immunity of 5% - basically the more conservative outlook. The graph itself seems to be indicating a probability of increase in cases, and we presumably want to be below 0.5. The legend shows three colors for universal masking, masking of the unvaccinated, and no masking. But the graph itself has five color bands - are the other color bands just hybrids? So the color between beige and lilac represents some vaccinated people masking and all unvaccinated people masking? And no masking is not an option per this graph even at 100% vaccination, because the probability of cases increasing would be around 80% still? If the natural immunity is higher (the bottom-right graph), then there is no need for universal masking in nearly all levels of vaccination? Am I interpreting all that correctly?

Re: CDC Internal Delta Variant Presentation

#48

Post by mnd999 »

dylan604 wrote: post #9
vsnf wrote: post #6

Slide 21 >Given higher transmissibility and current vaccine coverage, universal masking is essential to reduce transmission of the Delta variant Well that's very sad, if not entirely unexpected. How long will we be living in a masked world?

I know I'm tired now. When I read your "masked world", I heard it to the tune of REM's "Mad World"

Tears for Fears surely.

Re: CDC Internal Delta Variant Presentation

#49

Post by fsloth »

carnitas wrote: post #16
arpa wrote: post #13

Earlier quoted context omitted.

what's wrong with masked world? it helps stop the spread of other airborne diseases as well, it filters out (to some extent) the smog, facial recognition software has more trouble, so we regain at least some privacy...

Oh I don’t know, crushing depression, psychological atmosphere of fear, no biggy

These emotions are due to pandemic, yes? The mask is just an apparel - something that is now worn - but hardly the cause these negative emotions? I like the extra privacy a mask gives (introvert!) - but I do understand why some feel them uncomfortable.

Re: CDC Internal Delta Variant Presentation

#50

Post by peytn »

mike_d wrote: post #26
colechristensen wrote: post #19

Earlier quoted context omitted.

The masks most people wear basically only diffuse sneezes and coughs which makes immediate droplet transfer lower. A piece of ordinary cloth on your face does not filter smog, does not prevent any airborne infection droplets from reaching you, essentially only lowers the chance of your cough hitting somebody else. You need an N95 or better to really do anything to protect yourself. Also even if you have a high grade…

This should help make it clear: https://science.sciencemag.org/content/sci/368/6498/1422/F1.... Masks do more to protect others than they do you. Which is why we are safest when everyone wears a mask.

That graphic depicts a surgical face mask, not a cloth face mask. Nice try.
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