maty boosted
maty boosted

Supplied my Dad with some Arctic P14 PC fans and he built a replacement top for his #CorsiRosenthalBox with them, following @robwiss ’s lead. He reports *much quieter* than the Dimplex 50cm Box Fan (Australia). He’s unsure the airflow seems much greater but I told him I reckon we can trust Rob’s chamber tests (which showed nearly 1000m3/hr CADR). @cleanairstars @Jimrosenthal4

[ I saw more air filters in one day in @Davos than in 3 years in any other public place. And mandatory PCR testing!

Meanwhile they talk about equity and human rights. The same people who, like @DrTedros, avoid these tools from reaching everyone. ]

twitter.com/Iamgoingtosleep/st

maty boosted

@mackayim2022 @Infoseepage @ywlebo Here are total cost of ownership comparisons with three
Samsung devices (including electricity costs assuming 40hrs/week) over 1 and 3 years and 12 or 6 mthly replacement schedules for one Australian CRBox (only one 50cm box fan available and it's noisy and low performance). docs.google.com/spreadsheets/d

[ NHS has a winter crisis every year, right? Take a look at how ambulance handover delays this winter look compared to the previous three years. Admittedly lockdowns/pandemic played a part but still. ]

twitter.com/jim_reed/status/16

maty boosted

RT @1goodtern@twitter.com

The final score's in for 2022:
Nearly 🚨400,000🚨 hospitalisations for Covid in England in 2022.
How many do you think it will be in 2023?
Doesn't look over to me.
Looks like it's getting worse.

🐦🔗: twitter.com/1goodtern/status/1

NEWS!

[ @NIH is launching the

*Home Test to Treat Program*

To give free more equitable access to Treatment by linking home rapid tests to telehealth

Implemented by @eMedCertified
using eMed Test-to-Treat Telehealth Kits & Community Research Platform
1/ ]

twitter.com/michaelmina_lab/st

nih.gov/news-events/news-relea

[ In SPAIN, the CSP released its autumn/winter recommendation stating that Nuvaxovid may be used as a booster dose in people aged 18 and older after primary vaccination with mRNA, adenoviral vector, or protein vaccines, regardless of the number of previous booster doses. The CSP recommends a booster dose regardless of the number of doses previously received, at least FIVE MONTHS from the last dose administered.

In ITALY, the MoH released its recommendation extending the use of Nuvaxovid in people aged 18 and older as a homologous booster, and as a heterologous booster after primary vaccination with mRNA or adenoviral vector, where use of an mRNA vaccine is not deemed appropriate.

In FRANCE, the HAS released its recommendation for use of Nuvaxovid as a two-dose primary vaccination series in adolescents aged 12 through 17 who have not yet been vaccinated and who do not wish to, or cannot, receive an mRNA vaccine. The decision builds on existing HAS primary series recommendations in people aged 18 and older, and follows the recent HAS recommendation of Nuvaxovid as a booster dose for people aged 18 and older who no longer wish to, or cannot, receive mRNA vaccines. ]

Show thread

ENGLAND & WALES (UK)

[ ONS deaths data has been released for week ending 23 Dec.

2,982 more deaths were recorded in-week compared to the 2015-19 average. That’s 26% more, the largest excess we’ve seen all year.

Year-to-date there have been 567,379 deaths recorded which is 8% more than 2015-19 avg. ]

twitter.com/ActuaryByDay/statu

maty boosted

FDA Update on Rapid Antigen Tests - published 3 days ago. Less sensitivity expected with Omicron Subvariants.

Luminostics Clip COVID Rapid Antigen test - expected to have reduced performance.

Molecular Test DxTerity SARS-CoV-2 RT PCR is also expected to have reduced performance.

At this time no COVID test is expected to fail.

fda.gov/medical-devices/corona

maty boosted

@PieterPeach @CathNoakes ASHRAE Journal February 2019 had an article about airflow directionality in an AIIR. Link to PDF: t.co/tjExjAwdQa

Multizone Modeling of Airborne SARS-CoV-2 Quanta Transmission and Infection Mitigation Strategies in Office, Hotel, Retail, and School Buildings
mdpi.com/2075-5309/13/1/102

Multizone Modeling of Airborne SARS-CoV-2 Quanta Transmission and Infection Mitigation Strategies in Office, Hotel, Retail, and School Buildings

Airborne transmission of SARS-CoV-2 mostly occurs indoors, and effective mitigation strategies for specific building types are needed. Most guidance provided during the pandemic focused on general strategies that may not be applicable for all buildings. A systematic evaluation of infection risk mitigation strategies for different public and commercial buildings would facilitate their reopening process as well as post-pandemic operation. This study evaluates engineering mitigation strategies for five selected US Department of Energy prototype commercial buildings (i.e., Medium Office, Large Office, Small Hotel, Stand-Alone Retail, and Secondary School). The evaluation applied the multizone airflow and contaminant simulation software, CONTAM, with a newly developed CONTAM-quanta approach for infection risk assessment. The zone-to-zone quanta transmission and quanta fate were analyzed. The effectiveness of mechanical ventilation, and in-duct and in-room air treatment mitigation strategies were evaluated and compared. The efficacy of mitigation strategies was evaluated for full, 75%, 50% and 25% of design occupancy of these buildings under no-mask and mask-wearing conditions. Results suggested that for small spaces, in-duct air treatment would be insufficient for mitigating infection risks and additional in-room treatment devices would be needed. To avoid assessing mitigation strategies by simulating every building configuration, correlations of individual infection risk as a function of building mitigation parameters were developed upon extensive parametric studies.

www.mdpi.com
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[ 3/ It turns out the school was the riskiest environment out of all of the analyzed spaces, for catching , with a mean infection risk of about 17% if there was a single infector walking around, not wearing a mask, exhaling viral particles into the air. ]

twitter.com/smartrestartaps/st

maty boosted
maty boosted

#CovidIsNotOver, it's the data, and testing, that's vanished this Christmas - not the virus - which is still an #airborne pathogen.
@Join_ZOE UK latest
🦠3,363,866 predicted with symptomatic #Covid19
🦠231,272 estimated new daily infections
#CovidIsNotOver ask any medic in A&E.

[ Now that we're getting to the end of the year, it's worth looking at the toll of the 'mild & acceptable' illness that COVID is hailed as by many. Here's a thread of measurable toll in the UK in 2022 since omicron - considered the 'mild' variant of COVID spread. 🧵 ]

threadreaderapp.com/thread/160

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