Eric Feigl-Ding Profile picture
Sep 26, 2020 19 tweets 9 min read Read on X
📍FAUCI SAYS THE CORONAVIRUS IS AIRBORNE—it’s not official until the Fauci sings. And Dr Fauci has come out strongly:

“Bottomline, there’s much more aerosol 💨 than we thought”. #COVID19

Moreover, #SARSCoV2 also found in:

📌Stool
📌Blood
📌Semen
📌Eye secretions

➡️ Thread🧵
2) We are also certain that masks reduce aerosol airborne transmission—older June article below. But the new revelation by Fauci is that bigger particles >5 microns (traditionally “droplets” also stay in air long time). Hence why virus is more airborne. science.sciencemag.org/content/368/64…
3) And there is quite a bit of evidence built up on aerosols vs large droplets that usually get gravity pulled down and fomites (surface contact transmission).
4) So what does this mean? Ventilation & masks to start. But 6 feet rule still important even with masks/vent, because aerosol plume is more concentrated short range, even if aerosol can transmit both short & long. Figure by @ShellyMBoulder. Indoors, we really need to ventilate.
5) How else to visualize the difference? Aerosols can stay in the air for many hours depending on ventilation. Typical air exchange every 20 min to 4 hrs.
6) And this is how masks are important. Watch the aerosols under laser night light with and without masks.
7) But once a droplet or particle lands on something, it can maybe also be picked back up into the air too. A recent study that show fomites (infectious particles on a surface) can also *become* aerosolized. Details in earlier thread🧵 on aerosolized fomites.
8) How do you quickly ventilate a room! There are many right and wrong ways. This video explains what is truly needed to clear a room with fresh air. Note it was made by Japanese researchers who recognized the coronavirus was airborne long ago. #COVID19
9) Also, don’t hate the messenger—but tissue paper w/ influenza can also be aerosolized. “We further demonstrate that aerosolized fomites can be generated from inanimate objects, such as by manually rubbing a paper tissue contaminated w/ influenza virus.” nature.com/articles/s4146…
10) And they go on: “During #COVID19 pandemic in China, air sampling in various hospitals found the highest airborne genome counts of #SARSCoV2 in rooms where health care workers doffed their PPE, hinting that virus was possibly being aerosolized where clothing being removed” ⚠️
11) To be clear — the coronavirus is MOST DEFINITELY aerosol & airborne. Long thread 🧵 detailing 🏔of evidence and reasons why & how we know. If anyone doubts and wants to see more studies. - use this 🧵 below as an explainer👇 (note it was written before weird CDC retraction).
12) And yes, Dr Fauci mentioned semen fluid having infectious virus. This has been known for a few months. There is also mention of “privileged immunity of the testes” being shielded from rest of body. Wont spoil anyone’s day here—read thread 🧵 below to get the scoop.
13) FECAL AEROSOLS—We already test wastewater for the coronavirus, so what about fecal aerosols? And yes, there is a study that suggests “fecal aerosol transmission may have caused the community outbreak of COVID-19 in high-rise building” via septic pipes.
ncbi.nlm.nih.gov/pmc/articles/P…
14) Toilet plume—I don’t want to beat poop too much, but:

Flushing the Toilet May Fling Coronavirus Aerosols All Over

A new study shows how turbulence from a toilet bowl can create large plume that is potentially infectious to a bathroom’s next visitor.
google.com/amp/s/www.nyti…
15) My other worry is that US don’t have a toilet lid (it’s weird), and often bathrooms are poorly ventilated. So even if you enter a bathroom alone, you never know what plume someone left in the air before you. I think wearing premium mask good precaution for public restrooms.
16) Bathrooms are a bigger issue than people realize. There was another case of a Korean woman who carefully wore an N95 mask on a plane entire time *except when using the ✈️ bathroom 🚽*—and then contracted the coronavirus. Assuming she handwashed, it suggests aerosol.
17) Speaking of airplanes, there are now many other transmission cases. First documented one involved a man who wore a mask, but let the mask SLIP UNDER HIS NOSE... and then caught #COVID19 from his neighbors across the aisle. It’s a tricky virus.
18) BOTTOMLINE: What we should remember is AEROSOL being airborne completely changes #COVID19 infection prevention. 6 feet insufficient. Indoors avoid any other groups, ventilate, HEPA filtrate (MERV13 or better), consider premium masks if others not wearing, & careful bathrooms!
19) Important followup: with ventilation, indoor vs outdoor, speaking volume, mask and contact duration—here is how to piece it together in LOW MEDIUM HIGH risk. It’s not precise but good rule of thumb. HT to @trishgreenhalgh and her team for putting it out.

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More from @DrEricDing

Apr 26
⚠️Bad signal—CDC confirming—“cats having neurologic symptoms, rapid decline, and death” from H5N1 #birdflu. 3 more cases in cats 🐈 on dairy farms… now 6 total. ➡️The prior 3 bird flu positive cats? All dead now. Likely more. This is mammalian adaptation.
bnonews.com/index.php/2024…
Image
2) I suspect cats are drinking milk from the dairy cows on the dairy farms. This is why we shouldn’t drink raw milk 🥛 currently. Even pasteurized milk, some scientists are unsure of because of lack of safety data. See thread 🧵 below.
3) Not just cats — certain dog breeds (like beagles are highly susceptible to H5N1 avian flu too. And such dogs can facilitate their adaptation towards humans eventually (since more dogs are around people than dairy cows).

pubmed.ncbi.nlm.nih.gov/20580396/
Image
Read 6 tweets
Apr 25
📍Let this sink in—a world leading virologist @RickABright who has studied H5N1 bird flu says he is pausing all his milk consumption until he sees proof from both FDA & USDA that pasteurized milk is safe to drink. Pausing milk because of his concern over lack of transparent data.
Why are scientists pausing milk intake? Because there still isn’t enough data on safety of pasteurized milk. There has been data on other viruses in the past that survive pasteurization. See detailed thread 🧵 below.
3) also avoid raw and undercooked eggs for now just to be safe…
Read 15 tweets
Apr 24
Testing conducted by the FDA on pasteurized commercially purchased milk has found genetic evidence of the H5N1 bird flu virus. ➡️But the testing, done by PCR cannot distinguish between live virus or fragments of viruses that could have been killed by the pasteurization process.

The FDA said it has been trying to see if it could grow virus from milk found to contain evidence of H5N1, which is the gold standard test to see if there is viable virus in a product. 📌The FDA *does NOT explicitly say FDA laboratories were unable to find live virus in the milk samples, but nevertheless it does state that its belief that commercial, pasteurized milk is safe to consume has not been altered by these findings.

(Sound familiar? Just like blanket assuming a virus “isn’t airborne”, “cannot transmit without symptoms”, “no human to human transmission” errors during COVID). That said, I will am hopeful that no live virus will be found in confirmation. But let’s be precautious.
statnews.com/2024/04/23/h5n…Image
2) PPE and safety googles or face shield recommended for dairy farmers and anyone handling raw milk 🥛. Also they warn about poor fitting respirators for children (who may work near dairy— like I used to help on a dairy farm as a kid in rural Pa). Image
3) people working with cattle 🐄 should also “avoid eating drinking smoking chewing gum in contaminated areas or touching eyes.” And people exposed should wear PPE should be monitored for symptoms for 10 days. Image
Read 10 tweets
Apr 13
📈Measles epidemic trajectory is worsening in the U.S.—it has NOT flattened as some claimed. The surge continues—comparison of newest versus recent outbreak graph. Majority are unvaccinated, but there’s enough unvaccinated in many clusters for outbreaks.
cnn.com/health/measles…

Image
Image
2) here is another way to visualize the measles epidemic. Another annoying thing is that although 95% not double vaccinated, 5% of the previous 113 cases were vaccinated— which means that there is waning immunity or vaccine breakthrough with sufficiently big outbreak possible.
3) I specifically wanted about this issue that pockets of unvaccinated could still trigger outbreaks, and vaccine breakthroughs possible due to vaccine waning & if surrounded by pockets of low vaccinations. See my warning oped below. 👇
Read 6 tweets
Apr 10
🐄—"Experts fear that H5N1 avian flu… may have been transmitted through a type of cattle feed called “poultry litter”—mix of poultry poop, spilled feed, feathers, and other waste scraped from the floors of industrial chicken and turkey production plants."
telegraph.co.uk/global-health/…
Europe does not allow cattle to be fed poultry feed. US does. This helps explain why US is seeing a cow outbreak of avian flu.
3) CDC warns against chicken and bird exposures and direct contact with poop. Yet why the hell are we feeding cattle poultry litter??? Corporate farms are so stupid and greedy.
Read 12 tweets
Apr 9
Global CO2 levels and temperatures. But but but we scientists are merely “fear mongering” according to deniers. How about just facing reality? How about precautionary warnings to protect human lives?

@ed_hawkins @MrMatthewTodd #climatecrisis Image
Oh this seems totally fine.
Image
I think we are screwed at this point on limiting temperature rise by 1.5 C. It’ll still take a miracle to avoid 2 C.
Read 5 tweets

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