📍Wasted $750 million on #COVID19 plexiglass instead of air quality. ➡️ “We spent a lot of time & money focused on hygiene theater. Danger is we didn’t address the real threat—airborne transmission—real $, time & attention.” @j_g_allen. #COVIDisAirborne
2) Not a single study has shown that the clear plastic barriers actually control the virus, said Joseph Allen of the Harvard T.H. Chan School of Public Health.
3) For the first months of Covid-19, top health authorities pointed to larger droplets as the key transmission culprits, despite a chorus of protests from researchers. Tinier floating droplets can also spread the virus, they warned, meaning plastic shields can’t stop them.
4) Not until last month did the World Health Organization and U.S. Centers for Disease Control and Prevention fully affirm airborne transmission.
That meant plastic shielding had created “a false sense of security,” said @marwa_zaatari, pandemic task force member of @ashraenews
5) “Especially when we use it in offices or in schools specifically, plexiglass does not help,” @marwa_zaatari said. “If you have plexiglass, you’re still breathing the same shared air of another person.” ⚠️
6) Recent CDC research found that desk or table barriers in Georgia elementary schools didn’t correlate with lower infection rates. Mask mandates and ventilation improvements did.

7) An April study published by the journal Science suggested that desk shields might even slightly raise the risk of Covid-like symptoms. science.sciencemag.org/content/372/65…
8) And a prepublication paper from Japan late last month linked plastic shielding with infections in a poorly ventilated office. medrxiv.org/content/10.110…
9) Such studies raise the ironic possibility that too much plastic and impede ventilation, they could be raising the very risk they’re trying to reduce.

“Until we recognise that #COVID19 is airborne we are setting ourselves up for repeated failure”
10) How is aerosol different from large droplets? aerosol study indicates that coronavirus is persistent and stable for many hours. Typical air exchange every 20 min to 4 hrs, depending on ventilation. #COVID19
11) VENTILATION is key. Both ventilation and masks needed to reduce risk indoors. But most buildings not ventilated well enough.

12) Now that aerosol transmission of the coronavirus is established, we need to disperse aerosols quickly. Key is ventilation. 🇯🇵 assumed it was airborne from the beginning. Here is how to ventilate your school classrooms if unable to open window. #COVID19
13) The CDC recommends a combination of ventilation + air cleaning in schools in addition to masks. Learn more about the details of what air cleaners are good (and bad) ⬇️
14) for mechanical air filters (in your HVAC) system, experts recommend MERV 13 rating for air filters that offer 89.9% efficiency. But Merv 13 can also be achieved via a combination of a lower grade MERV + portal HEPA or UV. Source @marwa_zaatari

• • •

Missing some Tweet in this thread? You can try to force a refresh

Keep Current with Eric Feigl-Ding

Eric Feigl-Ding Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!


Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @DrEricDing

11 Jun
Vaccinations not required? Two #COVID19 cases on a Mediterranean cruise ship. CDC is also not requiring cruise 🛳 to sail with vaccinated passengers. Some cruises will, but Florida prohibits vaccine requirements & will fine cruise companies for asking 🔥
washingtonpost.com/travel/2021/06… Image
2) The first cruise from U.S. with paying passengers scheduled to sail in June. Celebrity Cruises ship will require everyone age >=16 to be fully vaccinated—which conflicts with a Florida law that says businesses can’t ask for proof of vaccination status. washingtonpost.com/travel/2021/05…
3) MSC Cruises recently got approval from the CDC to conduct a test cruise on that vessel. The company said it will “welcome both vaccinated and non-vaccinated guests,” with those who are not vaccinated subject to additional testing and restrictions. mscpressarea.com/en_US/press-re…
Read 4 tweets
10 Jun
PAY ATTENTION—the #DeltaVariant is the biggest worry & becoming more dominant worldwide. Why?

📍More contagious

📍More severe (⬆️hospitalization risk)

📍Lower vaccine efficacy/neutralization—1 dose just not enough.

Video 📺 part 1 of 2 #COVID19

HT @VickiGSP @IndependentSage
2) It’s critical to recognize that the #DeltaVariant is rising underneath the decrease of the #AlphaVariant #B117. Many have been complacent about this. But Delta is doubling every week now in 🇬🇧! Image
3) India 🇮🇳 doctors have been sharing concerns that #DeltaVariant is more severe / affecting more kids. Singapore 🇸🇬 MOH is also warning it is affecting children a lot. Image
Read 24 tweets
10 Jun
14 year gymnast who trained 4 hours a day—now cut down by #LongCovid… now her heart races. Her body aches. She gets winded climbing stairs and feels dizzy when she changes position. Concentrating on schoolwork is difficult & exhausting in person. #COVID19
2) “Kate learned last month from a team of doctors at Boston Children’s Hospital that she is suffering from the post-Covid syndrome better known as long Covid. An antibody test ordered by her pediatrician confirmed she had been infected with Covid-19.
3) “It’s really difficult,” she said. “As a gymnast, I’ve always pushed through different types of pain and injury. I try to push myself, but with this whole experience, it’s just been too hard.”
Read 11 tweets
10 Jun
Americans overwhelming want to help #vaccinate the world. Voters think we cannot end #COVID19 pandemic until we solve virus variants abroad by vaccinating the world.

This is why @JoeBiden is donating 500,000,000 doses to start.

Thank you @POTUS @WHCOS.
filesforprogress.org/memos/vax-the-… Image
2) This is why majority of voters agree vaccinating the world is important. Image
3) A good start… 500 million is just the beginning of American 🇺🇸 vaccine leadership.
Read 4 tweets
10 Jun
GOLDEN FORK HANDS! aka - How the coronavirus replicates & mutates.

Sequel to the famous mRNA #COVID19 vaccine video by @hotvickkrishna.
2) Legendary mRNA vaccine explainer video!!! Instant classic….
3) Now see how the mRNA vaccine really works… best lay explainer on the internet… by @ScientistSwanda. Watch: ⬇️
Read 4 tweets
9 Jun
Insanity—Anti-vaccine advocates attempts to prove false claim that #COVID19 vaccines cause magnetism at Ohio legislative committee… by using a *brass* key. Brass = not magnetic by the way. Hence it didn’t go so well. 🤦🏻‍♂️

2) it gets worse. Anti-vaccine *expert* witness claims vaccine causes forks and keys to stick to your forehead and supposedly linked to 5G network towers…. 🤷🏻‍♂️

Ugh. 🤦🏻‍♂️

3) Gotta love comedians right now… HT @georgehahn
Read 5 tweets

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!