We've been falsely told 'schools are safe', 'don't drive community transmission', & teachers don't have a higher risk of infection repeatedly by govt & their advisors- to justify some of the most negligent policies in history. 🧵
Questions have to be asked about the evidence Jenny Harries gave to the Education Committee today about the risk to teachers.
— Adam Hamdy (@adamhamdy) January 19, 2021
Was she aware of this data?
If not, why wasn\u2019t she properly briefed?#COVID19 #schools https://t.co/4wa1PyAJld pic.twitter.com/eqFjaA1zYC
Why?
https://t.co/EcKP8Vq2yo
.@educationgovuk data released show on average the rate of Covid-19 infection is 1.9 times higher amongst primary & secondary teachers than the general population, & 2 times higher for special school teachers.
— National Education Union (@NEUnion) January 19, 2021
Read our full commenthttps://t.co/vNl0zUEiOi#MakeSchoolsSafe pic.twitter.com/FTHdKYZA8a
https://t.co/Bwu6QXm6Q1
I've been a hearing a lot about how children are more infectious *now* & contribute to transmission because of the B117 variant, but didn't before. This is a myth. Children & schools have always played an important role in transmission. Time to lay this to rest. Thread.
— Deepti Gurdasani (@dgurdasani1) January 5, 2021
https://t.co/nFrjbuTiPC
More from Deepti Gurdasani
Brief thread to debunk the repeated claims we hear about transmission not happening 'within school walls', infection in school children being 'a reflection of infection from the community', and 'primary school children less likely to get infected and contribute to transmission'.
I've heard a lot of scientists claim these three - including most recently the chief advisor to the CDC, where the claim that most transmission doesn't happen within the walls of schools. There is strong evidence to rebut this claim. Let's look at
Let's look at the trends of infection in different age groups in England first- as reported by the ONS. Being a random survey of infection in the community, this doesn't suffer from the biases of symptom-based testing, particularly important in children who are often asymptomatic
A few things to note:
1. The infection rates among primary & secondary school children closely follow school openings, closures & levels of attendance. E.g. We see a dip in infections following Oct half-term, followed by a rise after school reopening.
We see steep drops in both primary & secondary school groups after end of term (18th December), but these drops plateau out in primary school children, where attendance has been >20% after re-opening in January (by contrast with 2ndary schools where this is ~5%).
I've heard a lot of scientists claim these three - including most recently the chief advisor to the CDC, where the claim that most transmission doesn't happen within the walls of schools. There is strong evidence to rebut this claim. Let's look at
The science shows us that most disease transmission does not happen in the walls of the school, but it comes in from the community. So, CDC is advocating to get our K-5 students back in school at least in a hybrid mode with universal mask wearing and 6 ft of distancing. https://t.co/dfvJ2nl2s4
— Rochelle Walensky, MD, MPH (@CDCDirector) February 14, 2021
Let's look at the trends of infection in different age groups in England first- as reported by the ONS. Being a random survey of infection in the community, this doesn't suffer from the biases of symptom-based testing, particularly important in children who are often asymptomatic
A few things to note:
1. The infection rates among primary & secondary school children closely follow school openings, closures & levels of attendance. E.g. We see a dip in infections following Oct half-term, followed by a rise after school reopening.
We see steep drops in both primary & secondary school groups after end of term (18th December), but these drops plateau out in primary school children, where attendance has been >20% after re-opening in January (by contrast with 2ndary schools where this is ~5%).
This is the exact problem with our government's thinking & response- despite this strategy of 'tolerating deaths' and half-way measures having spectacularly failed, it's quite amazing that our govt still hasn't learned anything, & continues to promote a policy of death. Thread
Had we adopted an elimination strategy early on, rather than one of tolerating a certain level of infection, we wouldn't be here now. The reason we're here is because the govt never committed to elimination.
We eased lockdown in May when infection levels were much higher than when other countries in Europe did this. The govt was warned about this, but did this to 'help the economy'. Not only did this lead us into the 2nd wave, the need for further lockdowns harmed the economy further
It's very clear from global evidence that we cannot 'tolerate a level of community transmission' and maintain 'R at or just below 1', which has been our governments policy for a long time. This isn't sustainable & very rapidly gets out of control, leading to exponential rises
Coupled with late action to contain these surges, not only does this lead to many more deaths, and much more morbidity with Long COVID, it also creates a fertile ground for viral mutations to accumulate with a greater risk of adaptation, which is exactly what happened in the UK
U.K. needs to confront
— Esther McVey (@EstherMcVey1) January 2, 2021
\u2018The challenge that faces us is to decide - are we going to try to pursue the elimination of Covid-19 regardless of the costs or decide on a tolerable level of deaths (like we do with the flu) in order to return to a normal life?\u2019
https://t.co/9hWbHIPJUq
Had we adopted an elimination strategy early on, rather than one of tolerating a certain level of infection, we wouldn't be here now. The reason we're here is because the govt never committed to elimination.
We eased lockdown in May when infection levels were much higher than when other countries in Europe did this. The govt was warned about this, but did this to 'help the economy'. Not only did this lead us into the 2nd wave, the need for further lockdowns harmed the economy further
It's very clear from global evidence that we cannot 'tolerate a level of community transmission' and maintain 'R at or just below 1', which has been our governments policy for a long time. This isn't sustainable & very rapidly gets out of control, leading to exponential rises
Coupled with late action to contain these surges, not only does this lead to many more deaths, and much more morbidity with Long COVID, it also creates a fertile ground for viral mutations to accumulate with a greater risk of adaptation, which is exactly what happened in the UK
Thread on the recent report on the possible risk of increased death associated with the new UK variant (B117)- with a discussion of the evidence around this, and what this means.
First, there is strong evidence to support increased transmissibility of B117 - current estimates of increased transmissibility range between 30-70% - from epidemiological evidence examining the differential rate of growth of B117 with respect to other variants & increase in R
There is also evidence from PHE contact studies that the risk of transmission from those carrying the B117 variant is ~50% greater than with other non-B117 variants.
Increased transmissibility, even if a variant has the same fatality rate can increase deaths substantially, because the rate of growth of cases is higher- & more cases means more deaths.
Increased fatality rates also increase deaths- but do so
So how was risk of death with the variant studied?
We don't routinely sequence all samples for the virus. We've found that the variant has a particular deletion which means that some PCR tests on samples with the variant give a different read-out when the variant is present.
First, there is strong evidence to support increased transmissibility of B117 - current estimates of increased transmissibility range between 30-70% - from epidemiological evidence examining the differential rate of growth of B117 with respect to other variants & increase in R
There is also evidence from PHE contact studies that the risk of transmission from those carrying the B117 variant is ~50% greater than with other non-B117 variants.
Increased transmissibility, even if a variant has the same fatality rate can increase deaths substantially, because the rate of growth of cases is higher- & more cases means more deaths.
Increased fatality rates also increase deaths- but do so
How dangerous are the B.1.1.7 and 501Y.V2 hyper-transmissible strains?
— Eric Topol (@EricTopol) January 11, 2021
by @AdamJKucharski @CFR_orghttps://t.co/aycWMN3b5h
h/t @Karl_Lauterbach pic.twitter.com/JlaFzzP06t
So how was risk of death with the variant studied?
We don't routinely sequence all samples for the virus. We've found that the variant has a particular deletion which means that some PCR tests on samples with the variant give a different read-out when the variant is present.
More from Education
An appallingly tardy response to such an important element of reading - apologies. The growing recognition of fluency as the crucial developmental area for primary education is certainly encouraging helping us move away from the obsession with reading comprehension tests.
It is, as you suggest, a nuanced pedagogy with the tripartite algorithm of rate, accuracy and prosody at times conflating the landscape and often leading to an educational shrug of the shoulders, a convenient abdication of responsibility and a return to comprehension 'skills'.
Taking each element separately (but not hierarchically) may be helpful but always remembering that for fluency they occur simultaneously (not dissimilar to sentence structure, text structure and rhetoric in fluent writing).
Rate, or words-read-per-minute, is the easiest. Faster reading speeds are EVIDENCE of fluency development but attempting to 'teach' children(or anyone) to read faster is fallacious (Carver, 1985) and will result in processing deficit which in young readers will be catastrophic.
Reading rate is dependent upon eye-movements and cognitive processing development along with orthographic development (more on this later).
Sorry - a bit of a brain dump post - but I'd appreciate any responses and/or directions towards any applicable research.@Suchmo83 @Mr_AlmondED @TimRasinski1 @ReadingShanahan @mrspennyslater @TheReadingApe @PieCorbett @ReadingRockets @teach_well
— Mr Leyshon (@RyonWLeyshon) February 4, 2021
It is, as you suggest, a nuanced pedagogy with the tripartite algorithm of rate, accuracy and prosody at times conflating the landscape and often leading to an educational shrug of the shoulders, a convenient abdication of responsibility and a return to comprehension 'skills'.
Taking each element separately (but not hierarchically) may be helpful but always remembering that for fluency they occur simultaneously (not dissimilar to sentence structure, text structure and rhetoric in fluent writing).
Rate, or words-read-per-minute, is the easiest. Faster reading speeds are EVIDENCE of fluency development but attempting to 'teach' children(or anyone) to read faster is fallacious (Carver, 1985) and will result in processing deficit which in young readers will be catastrophic.
Reading rate is dependent upon eye-movements and cognitive processing development along with orthographic development (more on this later).
OK I am going to be tackling this as surveillance/open source intel gathering exercise, because that is my background. I blew away 3 years of my life doing site acquisition/reconnaissance for a certain industry that shall remain unnamed and believe there is significant carryover.
This is NOT going to be zillow "here is how to google school districts and find walmart" we are not concerned with this malarkey, we are homeschooling and planting victory gardens and having gigantic happy families.
With that said, for my frog and frog-adjacent bros and sisters:
CHOICE SITES:
Zillow is obvious one, but there are many good sites like Billy Land, Classic Country Land, Landwatch, etc. and many of these specialize in owner financing (more on that later.) Do NOT treat these as authoritative sources - trust plat maps and parcel viewers.
TARGET IDENTIFICATION AND EVALUATION:
Okay, everyone knows how to google "raw land in x state" but there are other resources out there, including state Departments of Natural Resources, foreclosure auctions, etc. Finding the land you like is the easy part. Let's do a case study.
I'm going to target using an "off-grid but not" algorithm. This is a good piece in my book - middle of nowhere but still trekkable to civilization.
Note: visible power, power/fiber pedestal, utility corridor, nearby commercial enterprise(s), and utility pole shadows visible.
If I did thred on finding/acquiring decent raw land would that be something pepo are interested in
— Ovcharka (@ouroboros_outis) January 18, 2021
I think I know a bunch of weird tips/tricks for selection at this point that it might help u guys, lemme know
This is NOT going to be zillow "here is how to google school districts and find walmart" we are not concerned with this malarkey, we are homeschooling and planting victory gardens and having gigantic happy families.
With that said, for my frog and frog-adjacent bros and sisters:
CHOICE SITES:
Zillow is obvious one, but there are many good sites like Billy Land, Classic Country Land, Landwatch, etc. and many of these specialize in owner financing (more on that later.) Do NOT treat these as authoritative sources - trust plat maps and parcel viewers.
TARGET IDENTIFICATION AND EVALUATION:
Okay, everyone knows how to google "raw land in x state" but there are other resources out there, including state Departments of Natural Resources, foreclosure auctions, etc. Finding the land you like is the easy part. Let's do a case study.
I'm going to target using an "off-grid but not" algorithm. This is a good piece in my book - middle of nowhere but still trekkable to civilization.
Note: visible power, power/fiber pedestal, utility corridor, nearby commercial enterprise(s), and utility pole shadows visible.
