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Barry Hunt - #DavosSafe Profile picture
@BarryHunt008
May 31 • 13 tweets • 11 min read Twitter logo Read on Twitter
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My slides from #IPAC2023, "Environmentally Responsible PPE" ImageImageImageImage
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More from @BarryHunt008

Barry Hunt - #DavosSafe Profile picture
Jun 1
Sigh.

Here's just one example of the pathetic state of the peer-reviewed journal industry in medicine.

It costs $59. to access a "review of reviews" that is concerned with the poor quality of face mask reviews that itself only scored a mediocre 7/10 for "quality".

Duh. ImageImage
pubmed.ncbi.nlm.nih.gov/36798024/ Image
"Conclusions: Guideline development groups need to take care to choose outcomes that are of most importance to those who are the target of guidance."

Duh.
Read 7 tweets
Barry Hunt - #DavosSafe Profile picture
Jun 1
I was taught that 80% of environmental HAIs are due to touch.

After 14 years in the field I seriously doubt that's the case.

It seems more likely that 80% of environmental HAIs are due to bioaerosols.
That's not to say that fomites don't play a role. They do. Next to the patient there is certainly oral / nasal / ocular direct transfer possibility.
But I think in lost cases fomites are more likely to be temporary landing pads.
It's very easy to re-aerosolize bacteria & virus from most surfaces with touch & air movement.

Microbes on the floor end up on overbed tables in short order. They don't walk there.

Walking across the floor liberates microbes into the air.
Read 9 tweets
Barry Hunt - #DavosSafe Profile picture
May 31
What's the risk of eating & drinking on a plane while wearing an elastomeric respirator?
The internal volume of my respirator is about 98 ml.

My normal tidal volume is ~500 ml.
When I breath hold I take a larger breath first, ~1,000 ml.

I exhale into the mask first before inhaling after taking a bite or sip so I've delivered 1,000/98 = ~ 10 volumes of dilution.

Residual would be near zero but let's assume worst case 10%.
Read 7 tweets
Barry Hunt - #DavosSafe Profile picture
May 31
Sad to leave beautiful Vancouver today.

#IPAC2023 Image
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Thank you @jvipondmd for your impassioned presentation yesterday & the stimulating conversation at dinner. Your contribution to saving people & the planet by doing things right is inspiring.

👏👏👏 ImageImageImageImage
Read 16 tweets
Barry Hunt - #DavosSafe Profile picture
May 30
Meet my new friend, Elmer.

Elmer is a pandemic healthcare hero.

He works at a small First Nations hospital in rural Manitoba.

#IPAC2023 ImageImage
Elmer bought elastomeric respirators for each HCW in his hospital. Image
Elmer created negative pressure rooms using portable HEPA filters. ImageImage
Read 4 tweets
Barry Hunt - #DavosSafe Profile picture
May 30
Next up at #IPAC2023

Sandra Callery - LTC IPAC Program Recovery Image
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Read 33 tweets

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