Lazarus Long Profile picture
Oct 24, 2022 12 tweets 7 min read Read on X
#RSVisAirborne, so wear an N95.

The Respiratory Syncytial Virus IS airborne🧵.

If you say it's not? Check your level of aerosol knowledge.

Because you are probably going to cite Hall, who tested cuddlers, touchers, and sitters with sick babies.
Copy doi.org/10.1016/S0022-…

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Full article in screenshots below.
This study is worthless as it was confounded by:

❌ Time.

Cuddlers 2-4 hours, sitters exactly 3, touchers went into rooms for unknown period of time. Those rooms were previously inhabited by an infected baby. Infectious aerosols would still have been floating.
❌ Ventilation.

We don't know the ACH of the room each baby was in. Was it the same room even?

❌ Aerosol production. People produce more aerosols when yelling. A crying baby will produce more aerosols than a quiet baby.

This is particularly important as more cuddlers were
infected than touchers than sitters.

It should be noted that sitters are a test of far field aerosols.

❌ We also don't know if the sitters were sitting in a location that had a ventilation return grill between them and the baby. Would easily explain lack of far field
infection.

Cuddlers are a test of near field aerosols and droplets....and those subjects got the most sick. Which is typical of aerosols - this is why the UK CoVid Human Challenge declined to test aerosols.

Let's move on from that study which is cited by every IPC org.
#RSVisAirborne - as shown by this study.

6 ACH documented..and still infectious RSV (👇) was harvested from the air up to 15 feet away.

Diagram of the impactor collection points 👇 as well.

atsjournals.org/doi/full/10.11…
While reviewing this topic of #RSVisAirborne, this caught my attention:

"Healthcare-acquired infections (HAIs) continue to persist in hospitals, despite the use of increasingly strict infection-control precautions."

Are you a doctor and have felt the harsh glare of IPC?
Aren't you tired of being told you must have done something wrong?

That you must have not worn your surgical mask just right? Or you must not have washed your hands enough.

Maybe it's time you get a group of doctors and push back on your hospital's droplet based idiocy.
Because it's not just your health that depends on it.

It's all of those babies with RSV in pediatrics.

This study was done in 2015. Babies are grouped by symptoms. Not by virus.

Care for some cross contamination from the CoVid/ RSV/ Influenza Buffet?

IPC ...time to wake up.
Ok, let's layer on some more info.

"(RSV) is the single most important cause of lower respiratory tract infection (LRTI) in infants and young children"

Guess what folks? Droplets don't jump and skip past your uvula.

Aerosols do-they just flow on past.

academic.oup.com/jid/article/22…
Not a big fan of this study, but some might like it.

"The viral load in nasopharyngeal aspirates (NPA) and air samples were measured."

2 of 3 RSV patients had "...air dispersal of the virus(es) compatible with their NPA results."

#RSVisAirborne

cambridge.org/core/journals/…

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More from @LazarusLong13

Jun 8
"COVID IS OVER, YOU DON'T NEED THAT!"

Reason 4,657 on why I mask now that I understand aerosols and transmission. It's not all about COVID.

This is Chicago, but it's really Anytown, USA. Image
"The human DNA virome. Prevalences (%) of viral DNAs in the body (≥1 tissue positive for a virus) and in different organs as determined by qPCR or NGS"

researchgate.net/figure/The-hum…

x.com/AbundantLandUs… Image
.Why I mask in more details...

EV-D68. An enterovirus - many people think enteroviruses are strictly fecal-oral.

They think wrong ( this is not a subtweet at Dr. Johnson).

Read 6 tweets
Jun 7
How do we know TB is airborne?

71 guinea pigs gave their lives between 1956 and 1958 in the eponymous study by Riley et al, getting TB air piped in from some TB patients, to prove TB is airborne.

Influenza is kind of airborne per most doctors. But kind of not.

So....

/1 Image
We need some volunteers.

Will horses be those volunteers that finally lay it all out?

Yes - but none of them lost their lives.

Air samplers were deployed and tracked horses inoculated with Equine influenza virus (EIV).

From the very first day post inoculation (dpi), until the Image
12th day, EIV was found in the air, in this new study.

With no horses, or guinea pigs, hurt in the process.



But sure, influenza's not airborne - if you are the USDA, right, @nirav_maine?

Of course, yet another new study points an accusatorysciencedirect.com/science/articl…
Read 9 tweets
May 26
Thank you @BarryHunt008 for flagging this.

@ThailandMedicaX, retweeted by some because of their controversial takes (ahem, their lies?), is saying that FAR-UVC is dangerous because somehow the light will get into the lungs.

Lol.

They are just apparent supplement grifters.

🧵 Image
I noticed they were using @NukitToBeSure's excellent torches as their example picture.

Strange to be so selective of an example picture for someone purporting to be an independent news source on health.

Hmm. I helped defend Nukit against charges of Image
racism by a very nasty couple who it turned out just do not like UVC, personally. I wonder....

Yep, ThailandMedicalX has blocked me.

But, it's weird for a purported news source to block someone like me @gorskon
@doritmi @19joho.

And them blocking me, is probably because Image
Image
Read 21 tweets
May 25
You've heard of "The Three Problem." - great book, and excellent Netflix series.

If you want to be avoid catching Covid, you probably have "The Empty Room" situation in the back of your mind.

How long after a room had people in it, can you safely demask?

Thread.
/1 3 body problem netflix cover showing a eye with a countdown running in it.  That was a countdown to each person's death.
Measles was thought to be airborne after a child caught measles an hour after the infected child left the same office.

.

Interestingly, you can see the reluctance in blue below to call measles airborne. Much like the WHO with @mvankerkhove researchgate.net/publication/19…In February 1981, a measles outbreak occurred in a pediatric practice in DeKalb County, GA. The source case, a 12-year-old boy vaccinated against measles at 11 1/2 months of age, was in the office for one hour on the second day of rash, primarily in a single examining room. On examination, he was noted to be coughing vigorously. Seven secondary cases of measles occurred due to exposure in the office. Four children had transient contact with the source patient as he entered or exited through the waiting room; only one of the four had face-to-face contact within 1 m of the source patient. The...
which spent millions to rebrand SARS2 as "through the air" rather than airborne.

It is an inconvenient truth that then leads us to the study showing an #EmptyRoom SARS2 infection at 1 hour and 43 minutes, and FOUR HOURS and FORTY-FIVE MINUTES.

In this study, it comes with Experimental evidence suggests that SARS-CoV-2 remains viable within aerosols with a half-life of approximately 1-3 hours, though changes in aerosol microenvironment may shorten viability to minutes. However, it remains unclear how long airborne SARS-CoV-2 can transmit infection. Whole genome sequencing of nasopharyngeal samples obtained from patients on an outbreak unit suggested in-room transmission of the delta variant, AY3 lineage, of SARS-CoV-2 to two patients admitted 1 hour, 43 minutes and 4 hours, 45 minutes after discharge of an asymptomatic infected patient. These findings suggest...
Diagram showing 1 hour and 43 minute and 4 hour and 45 minute infections.
Read 30 tweets
May 23
Mum's the word - if @SecKennedy is Mum.

You see, I have been a VERY FOCAL CDC critic. But you can't criticize without listening.

And I have been noticing that that the CDC has been very, very quiet.

NPR noticed as well. Image
This is crazy. Image
Yes, the @CDCgov has been deathly quiet.

90 times last year, versus 4 this year.

This is not MAHA.

This is MASA - Make America Silent Again.

And as one of the CDC's most focal critics? We NEED them to be sharing Public Health information. Image
Read 5 tweets
May 1
Fit factor of 250- 4000 versus the normal 100-200 for an N95? Where do I sign up?

Oops, that's here. With me. Starting a build with an Ebay'd Bullard EVA PAPR's filter - and some DIY loving goodness of a heat gun and PVC pipes.

The benefit of this build will be the over 10
hour run-time of the massive battery on the PAPR.
Got a long dental appointment? This will be the answer.

Let's get cracking!
Read 32 tweets

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