Lazarus Long Profile picture
Apr 2, 2022 14 tweets 7 min read Read on X
Omicron. Hotel rooms.

TLDR? Could not pay me enough to stay in a hotel room. Stand alone motel cabin? Sure.
Hotel with corridors? No way.

Going to start with a quarantine hotel. They have CCTV and genomic confirmation, typically.

Will add more as time permits.

🧵
Mainland china. Designated quarantine hotel (DQH).

Bets variant detected. Afterwards, HEPAS added to the corridors to stop cross-room transmission.

All good, right?
You would be wrong.

#Covid is airborne, and it is incredibly transmissible.

4 or less breaths transmissible in hospitals with 6 ACH (excellent ventilation). That was at the original Wuhan stage of things.

Now, with Omicron? Even with HEPAs in the corridor?

Transmission.

Now, they did point out the index case was not wearing a mask, or just a cloth mask, when they opened the door to get food or drop off the garbage in the corridor.

But was that the most likely root-cause?
No, a smoke test indicated that it was NOT air pouring under the door, but from when the doors were opened.

Next tweet. Their description.
This Omicron case ended up in a CDC EID write-up.

wwwnc.cdc.gov/eid/article/28…

Here's the link for the first study:
thelancet.com/journals/lanwp…

Anyway, the CDC one confirmed CCTV was available, and reviewed.
So. Just a hotel transmission of Omicron between two fully vaxxed people across a corridor with a HEPA in it.

Personally, I'll take my chances at the Bates Motel, before I'd ever set foot into Hotel CoVid.

Because that hotel stay could end up being a Long one.
By the way, this is a change in my position on hotels. Before I thought it would be ok if you sealed off your hotel room from air flow under the door.

Omicron has changed that calculation of risk for me.
This thread is continuing to get traction, and a lot of understandably concerned apartment dwellers are asking what they can do.

H/T @ArtburkNikki for:


Use the toilet paper test David talks about.

And then get a draft stopper.
amazon.com/Evelots-Double…
Thanks to @Amal4Solutions for these tests from covidstraighttalk.org/hacks-guides
And as always, an out of the box solution.

Use PVC and plastic to make an airlock around your front door, with a HEPA in it.

Enter into the airlock, mask on. Twitter until the air has been changed over.

Exit, mask off.
Inside of your airlock, a 4" single #corsirosenthalbox overhead will give the same amount of cleaning as a 4 filter one.

And much quieter.

Aim down for air curtain effect.

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More from @LazarusLong13

Dec 11
As an anonymous clean air advocate, I've put a bit of thought into how to present, well, my expertise.

If someone were to say, "How do I know you know what you are talking about? Are you a doctor, or a virologist?"

To which, I would say...."No, but that's a good thing.
/1
I have focused on aerosol and masking science. Because it is those fields that give us the most information on how airborne particles, aerosols, get from Person A to Person B.

My expertise is derived from the great studies of Dr. Lindsay Marr, MacArthur recipient. Dr. Prather,
double National Academy member, Dr Milton, inventor of the Gesundheit, aerosol scientist and medical doctor; Dr Coleman whose group found that duckbill N95s captured 98% of emitted respiratory aerosols, and more excellent individual aerosol scientists.
Read 17 tweets
Nov 22
I am not a fan of nasal sprays to stop The 'Vid, but I respect you having it as a layer in the Swiss cheese package.

But, some people have said they got bloody noses.

While at the ER yesterday, I picked up a pretty good at home technique. Let our $1,000 lay-out
Image
save you money.

Use tongue depressors to make a nose pinch clamp.

Leave it on for 30 minutes. Still a problem? Two sprays of Afrin, and re-apply nose pinch clamp. Wait 30 minutes.

Still a problem? Cotton balls sprayed with Afrin, clamp, 30 minutes

aliem.com/trick-of-trade…Image
Image
Image
Afrin- in generic form is $3.32 at Walmart.

Also, put a ice compress at the back of the neck, while doing the above.

"Cooling the nape of the neck is said to induce reflex constriction of the mucosal vessels of the nose"

✅ I agree with the authors.

pubmed.ncbi.nlm.nih.gov/1568881/Image
Image
Read 6 tweets
Nov 13
A study demonstrated 100% PERFECT protection against SARS2 w/ readily available KF94s

✅ 181 HCWs
✅ 1 got SARS2 antibodies, but an epi investigation -> the infection happened elsewhere.
😡 The final checkpoint was March 2021. N95s only became freely available 1 month later
/1 FDA: N95 masks, now plentiful, should no longer be reused  By MARTHA MENDOZA and JULIET LINDERMAN  (Associated Press)  April 23, 2021 12:44 p.m.  Medical providers may soon return to using one medical N95 mask per patient, a practice that was suspended during the pandemic due to deadly supply shortages
What is described in the tweets
in the USA.

Korean study:
jkms.org/DOIx.php?id=10…

This is in comparison to a Swiss study during the same rough time-frame. A study which did NOT show the same excellent results, but dismal results. Why?

The Swiss had the same sort of fit testing,

pubmed.ncbi.nlm.nih.gov/35123572/ Results: We enrolled 3259 participants from nine healthcare institutions, whereof 716 (22%) preferentially used FFP2. Among these, 81/716 (11%) reported a SARS-CoV-2-positive swab, compared to 352/2543 (14%) surgical mask users; seroconversion was documented in 85/656 (13%) FFP2 and 426/2255 (19%) surgical mask users. Adjusted for baseline characteristics, COVID-19 exposure, and risk behaviour, FFP2 use was non-significantly associated with decreased risk for SARS-CoV-2-positive swab (adjusted hazard ratio [aHR] 0.8, 95% CI 0.6-1.0) and seroconversion (adjusted odds ratio [aOR] 0.7, 95% CI ...
PPE monitoring.

What was the big difference?

Are N95s/FFP2s inferior to KF94s?

No, it was supply - and other reasons.
Read 10 tweets
Nov 5
@tomhanks has just been savaged by people screaming masks don't work.

All hospitals have fiduciary responsibilities to not waste money.

Here is a light sampling of hospitals mandating masks because they work.

Proving that not only do masks work, but mask mandates work.

Thread
Health PEI
Start/End: October 14, 2025 , How many hospitals: 7, employee count: 4,967,

Public hospital,

City: Various (e.g., Charlottetown, Summerside), Province: Prince Edward Island, Country: Canada, full url: princeedwardisland.ca/en/news/health…
Horizon Health Network
Start/End: September 3, 2025 How many hospitals: 12, employee count: 15,000, public or private:

Public hospital.

City: Various (e.g., Saint John, Fredericton),
Province: New Brunswick,
Country: Canada horizonnb.ca/coronavirus-co…
Read 32 tweets
Nov 2
Thread of debunking the myth that "babies should not be masked."

A baby uninfected is better than a baby infected.

If you oppose masking babies, you are immediately for infecting babies.

Let's get to it. A most excellent instruction page on how to mask babies.  Suck it antimaskers.
This solves an equity problem.

Not everyone has the money or technical skill to build a baby buggy PAPR.

Just like not everyone has the money to buy an adult PAPR.

Are you for people on SNAP being able to protect their babies? Or not?

Most can rustle up the money to buy some uber cute baby masks!

This is the link from the baby zine.

These need to be fit tested.

Now, let's get into the good stuff. The "OMG Laz has gone too far! We've got him!"

You better bring your A game.

aliexpress.us/item/325680749…
Read 39 tweets
Oct 22
If you are Covid Aware you have probably been avoiding the dentist. Well, the dental studies have come to you.

This edition? #CovidAwareSoReducingDentalVisits - Water flossing (WF) edition.

Or, as I like to think of it, the Gum Salon.

Thread.
Flossing is necessary for those super tight contact points as you see in the above thread, and is great to remove plaque down 1 mm deep in the gum line (gently).

InterDental Brushes are fantastic and go down 2-3 mm into the gum line to remove plaque.

And WFs in general, are, well, amazing!!

They basically go back and forth with InterDental Brushes on which is better as far as being the top of the food chain for overall cleaning of the space between your teeth.

But.

If you have gum recession, you may have this Image
Read 19 tweets

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