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Dr. Alex Huffman Profile picture
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14 May, 4 tweets, 2 min read
The more I ponder this CDC decision on masks, the more frustrated I am, that:
- the people doing all the right things are the ones confused
- there is no guidance for people with kids & immunocompromised family
- the vacuum of guidance will bring confusion & moments of conflict
Frustrated that:
- this will likely cause at least some local/nat'l surges
- decisions happened before enough people could be vaxxed
- this announcement seemed rushed, without preparation for the messaging complexities
- I feel somehow grungy b/c of it all
BUT ... as I emphasized several times already -- I am an aerosol scientist and *NOT* a public health expert. I appreciate & defer to the public health experts with training and experience here.

As a lay person, all I'm saying is I'm still a little confused & frustrated.
This thread sums up some of my personal responses in a giffy kind of way:

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Dr. Alex Huffman Profile picture
13 May
I was happy to contribute to this nice @medpagetoday article by @adambrosio_ reporting on the recent #CDC brief explicitly acknowledging inhalation risk of COVID.

Short thread with some quotes, CDC links, reflections. (1/x)
medpagetoday.com/special-report…
2/ I told her that IMO: "One of the most important aspects of the recent CDC updates is that they finally remove the ambiguous, 'close-contact' terminology, which just confused the whole discussion".

That's because ...
cdc.gov/coronavirus/20…
3/ "'close-contact' refers to a distance between people -- and not a process of transmission"

"previous guidance was unclear, because it did not distinguish that inhalation can occur at both short and long distances."
Read 10 tweets
Dr. Alex Huffman Profile picture
12 May
Lots of really good insight in this piece arguing that indoor mask mandates should be lifted as vaccinations increase in a community.

I especially appreciate the personal anecdotes & perspectives from @linseymarr & @j_g_allen.
By @cheyennehaslett.
abcnews.go.com/Politics/press…
"We should not undersell the vaccines. They offer excellent protection" said @linseymarr "I think we can really start thinking about ending mask mandates once everyone who wants to be vaccinated has had a chance to be fully vaccinated. And that should be in another month or two."
"The timeline on just how soon the CDC could loosen guidelines is unclear, since experts say masks indoors should stick around until every adult who wants the vaccine has had a chance to reach full vaccination. At the same time, over 116M Americans have already hit that mark."
Read 9 tweets
Dr. Alex Huffman Profile picture
4 May
This story about air cleaners by @LaurenWeberHP & @By_CJewett is important b/c:
- COVID risk in schools is still real & kids <12 yrs won't be vaccinated even by fall
- many well-meaning schools are buying worthless, even harmful products
- millions of tax-payer $$ being wasted
“It’s a high cost for nothing” @marwa_zaatari said" The company has sued her & another air-quality consultant for criticizing their devices. Of the pending case, Zaatari said it is a David-versus-Goliath situation, but she will not be deterred from speaking on behalf of children.
Many products offer promises only supported by the manufacturer.
The investment in proper air-cleaning (ventilation, HEPA filtration, upper-room gUV) will provide health benefits against respiratory aerosol infection AND many other issues for a generation.
Read 4 tweets
Dr. Alex Huffman Profile picture
3 May
An important piece on the dubious "air cleaning" products being sold to school districts & businesses. Via investigations by @LaurenWeberHP @By_CJewett.

It's important to stick to well-proven strategies like improved ventilation & HEPA filtration. (1/x)
khn.org/news/article/a…
2/ A link to the @CNN version of today's story by @LaurenWeberHP @By_CJewett, and a summary thread:
3/ An Op-Ed that @ChemDelphine, @marinavance, & I wrote to add awareness on imp. issues of cleaning air in schools & businesses.
All district constituents should work together to educate & advocate strongly for proven strategies.

coloradosun.com/2021/04/23/saf…
Read 5 tweets
Dr. Alex Huffman Profile picture
27 Apr
Excellent new guide on healthy #school buildings. Should be mandatory reading & discussion by all #K12 school boards, districts, school leadership.

Short, easily readable, w/ practical recommendations & support - for COVID & well beyond.

Link: static1.squarespace.com/static/5ef3652… (1/🧵)
2/ Summarized interventions for airborne infectious disease prevention:
1⃣ Commission buildings and examine existing systems
2⃣ Ventilate with clean outdoor air
3⃣ Improve the building’s air cleaning efficiency through evidence-based air cleaning treatment such as filtration
3/ Interventions, cont'd:
4⃣ If the ability to upgrade ventilation and air cleaning is limited, use portable air cleaners with high efficiency particulate air (HEPA) filtration
5⃣ Consider other evidence-based air cleaning approaches in the context of existing strategies
Read 8 tweets
Dr. Alex Huffman Profile picture
23 Apr
"We urgently need safer air in schools"

Last month Profs. @ChemDelphine at CU, @marinavance at CSU, & I wrote an #OpEd published today by @ColoradoSun. We wanted to bring a team of #Colorado experts to call for action & advocacy wrt #K12 schools. (1/x)
coloradosun.com/2021/04/23/saf…
2/ "We encourage school districts to use stimulus funds to improve the indoor air quality of their schools. Use evidence-based strategies. Avoid technologies that have not been proven by peer-reviewed scientific research."
3/ "We encourage students, teachers, and the community to engage with district administrators and encourage them to leverage funds to support both the immediate and long-term health of students and staff."
coloradosun.com/2021/04/23/saf…
Read 11 tweets

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