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ben (they/them)'s avatar

unfortunately there is no convincing evidence that nasal sprays prevent covid, see here for a deep dive: https://open.substack.com/pub/mathissweet/p/there-is-no-convincing-evidence-that?utm_source=share&utm_medium=android&r=1gmxns

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Vlad the Poker's avatar

Good list of options. How many do you use on a daily basis? But I don't see masks coming back in any big way unless people really start noticing sickness all around them (even if mandated by government). I personally have filters in the house, vaccine (flu only this year), stay home when sick, and always use mouthwash. I have seemed to avoid any major sickness (maybe a fever for a night or two this winter)...let's hope I keep it that way.

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T. Ryan Gregory's avatar

I mostly wrote about the things I use myself.

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Stan the Caddie's avatar

Everyday?

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Vlad the Poker's avatar

Go for the GREEN.

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MAUREEN WILLIAMSON's avatar

Very grateful for your easy-to-understand scholarship. Thank you.

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lunafaer (she/they)'s avatar

thanks for creating this.

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Robert Nelford's avatar

Great to see you here with all your sensible, scientific advice so usefully presented.

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Stephan Trump RESISTS in NJ's avatar

Hooray!! 😆 I followed you on Twitter. 😹💜

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Sarah's avatar

Thank you!

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Patricia Chartier's avatar

This is a very useful summary. I especially like the CO2 charts.

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Scott Squires's avatar

Thank you!

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Lee Risinger's avatar

Thanks. We are getting less and less in the USA.

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M (is) Living with Long Covid's avatar

Solid recommendations but unfortunately there’s very little solid evidence on nasal sprays.

They definitely cannot be relied on as a transmission prevention strategy, even as part of a Swiss cheese model.

A lot of the sprays are missing human clinical trials, have finished the trials but refused to publish results (suggesting perhaps disappointing results), have demonstrated no greater benefit than placebo, have conflicts of interest in their studies, are missing key information or clarifications in their studies, have procedural errors and omissions, and/or are making claims that are simply not backed up by evidence.

Some of the sprays have ingredients that can harm us and actually potentially destroy our cilia and mucosal lining. The FDA has also not approved any spray for prevention of covid.

They can also impact pcr and rapid test results which is concerning.

A friend of mine who is a biochemist has done incredible deep dives on nasal sprays and the mechanics behind them as well. I highly recommend these two posts from them if you have instagram: https://www.instagram.com/p/DBXTIeryTth/

and https://www.instagram.com/p/DEsx-u6zD8x/

Additionally, Dr. Hoerger (who is well respected in the CC community) also agrees that there is insufficient evidence on any of them (scroll down in this thread to see his comment on nasal sprays specifically: https://x.com/michael_hoerger/status/1834810693205274886)

I’m honestly quite sad because I bought so many and wanted to trust that they were another protective layer, but the science is just not there.

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T. Ryan Gregory's avatar

Hoerger is not a source I would consult.

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CL's avatar

Out of curiosity why not? I don't think he's a virologist, but I don't know much else about his background.

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T. Ryan Gregory's avatar

His models have been wrong every time.

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CL's avatar

Thanks! I had no idea. Do you have any recommendations for people and models to follow? I apologize if this is something you've already written about earlier, but I'm fairly new to following you.

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Stan the Caddie's avatar

Is anyone doing this on a daily basis? Nasal sprays? If it works, I might start it. Anyone have an experience with this?

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