A quick thread.

Literally, because I opened this PDF.

Viruses able to be spread by airborne can also spread over short.
1966, adenovirus isolated from aerosol samples
1970, enterovirus isolated from aerosol samples
potential large number of hosts
Controversy because (a) R lower for flu, so see less over distance and (b) if hospitals had to use airborne for flu, would cost a lot.
Virus found in respired breath.

Interruption of influenza by UV irradiation of upper room air (3 references)
Found in air
Found flu RNA in air
Probably aint yer hands, you dirty monster bros
Transmission during air travel documented, and hard to measure.
70% secondary attack rate. Must be airborne then, right? ;)
By touch etc but also ... by aerosols:

Our most favourite friend
Transmits mostly at close range (of course, as aerosols do) but airborne also known.
Including on a plane
... 7 rows ahead ...
... same floor of hotel (Metropole) ...
... and Amoy Gardens, which was aerosolized via the sewage system. [ed, was most definitely not rats]...
Can lead to persistent infections ... shedding for months ...
Transmits by all modes, which is to say, aerosol short and long, and touch

[ed. sorry droplet, and also touch, good luck with that]

Inhalation takes only small doses to infect.
Detected in the air by real-time PCR ...
Detected in various indoor environments, but of course data sparse because as the EXPERTS have said, isolating from air is difficult - you tend to crush up the virus.

The babies' revenge!
What? 100%?

Then it simply _has_ to be airborne like measles [ed. lifts pinky, sips tea]
Disgusting huge discharges from the nose ...
Controversy here.

Controversy here?

[ed. not really. Those are poorly designed studies, misusing p-test, on tiny N samples of babies to "disprove" aerosol. When a baby belts an opera, I'll reconsider]
RNA found in air 7m from patient bed.

Inb4 not live virus. Again, remember, hard to sample actual virus. Rawr.
Found throughout hospital, in aerosols.
Article ends with GI virus, which can be aerosolized by vomiting. Explosive outbreaks, but still thought to be by touch, although air spread not much studied . Going to skip this one because it's a bit off base, except one though ...
... infection is a numbers game. Up to a trillion copies per gram feces egested.
Le fin.

Remember, a close contact by any other name would aerosol as sweet.

In these papers, comments about infection at close contact do not tell you HOW infect, b/c aerosols infect at close AND long range

Dividing viruses into short and long range by HOW INFECTIOUS they are is fine, but once call short "droplet" & start to believe it...thats the error
(not really by touch)

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More from @jmcrookston

26 Apr
Bookmarking section 217.1 of the Criminal Code (in force via the Westray Law) that creates legal duty on people overseeing work of others to take all reasonable steps to prevent bodily harm to those others

Perhaps there IS crim liability in this mess ...

Crim Code and direct link to section here, for reference.

While I am here perhaps it is time to start a discussion around criminal negligence causing homicide for bad medical advice/studies provided to the public.

Read 12 tweets
26 Apr
Asking again why we have 34 indep medical officers of health handling pandemic response (or supposed to), with CMOH on top, then provincial political layer, then federal PHAC, and fed political layer ...?


one central command like Taiwan (1100 cases, 12 deaths)
Or Vietnam, one command
Read 7 tweets
25 Apr
19 person outbreak at the Public Health Ontario labs.

Same PHO that says surgical masks just fine.

Same PHO that wrote that biased snobby and insulting summary of the aerosol conference in November.

Can't even make this stuff up.


Whether "community spread" or whether "somehow acquired through an infection from laboratory tests itself"

I'll tell you where from ...

"I think this is an airborne virus and it's more infectious than we give it credit for"

My God, it's full of stars.
Read 25 tweets
23 Apr
Math modelling suggests may take as few as ten virions for someone to become infected with SARS-CoV-2.

Order of magnitude more infective than SARS.

Also blows up the 6 foot rule. Those babies from that stupid 1981 study gonna be upset.

That would be BANG on this dose response for SARS-CoV-1

pic here
Read 15 tweets
23 Apr
Magic measles spreads just like COVID-19.

Imagine that.

Childcare, home, etc major settings.

Of course contact, because you need to at some point be near a sick person, but 40% unidentified locations.

Not all that useful, but this is the data we get in Toronto:

Ppl can do their own research since it ain't me saying droplet for one BREATHOUTABLE virus and airborne for magic measles.
And this is how stupid this debate is.

Lancet in 2017 says measles "predominantly" droplets.


Read 6 tweets
22 Apr
On the airborne argument, fundamentally the reason they won't agree to ever change.
Note the concern with breaking ranks from national guidance, which of course would apply similarly at national up to international level.
Read 15 tweets

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