Lazarus Long Profile picture
Clean Air Advocate. I know how you can avoid those infections - and what they do to you, if you do get infected. #PZC.

Feb 24, 2024, 8 tweets

A thread on presymptomatic flu transmission to go into the #FluisAirborne thread.

If there are no symptoms? There are no coughing or sneezing droplets.

Just magical transmission. Except it's not magical - just aerosols.
publichealthscotland.scot/our-areas-of-w…

Next Voice of Authority, the WHO. Ignore the COVID part.

Heh.


Here we have the good old ferrets being used to demonstrate aerosol transmission of the 2009 pandemic flu.

Ferrets used because they are the only animal to have the same respiratory symptoms as us.

In addition,

"this efficient transmission did not temporally correlate with respiratory symptoms, such as coughs and sneezes, but rather with the peak viral titre in the nose."

So, NOT the coughing and sneezing, but the AMOUNT of virus being produced that was key.

scholar.google.com/scholar_lookup…

@CDC_Firstline - presymptomatic transmission is happening.

cdc.gov/infectioncontr…

For all of you parents, looks like kids are shedding virus longer pre-symptomatically than adults.

ncbi.nlm.nih.gov/pmc/articles/P…

Another H1N1 study showing clear pre-symptomatic transmission.

Why the focus on H1N1? Pandemics get attention. Day to day viruses do not.

cambridge.org/core/journals/…

Two HCW presymptomatic transmissions of H1N1 influenza to the immunocompromised.

Good times.

scholar.google.com/scholar?start=…

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