this post was submitted on 20 Feb 2026
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[–] boydster@sh.itjust.works 53 points 1 day ago* (last edited 1 day ago) (15 children)

The approach described in the journal Science does not train the immune system. Instead it mimics the way immune cells communicate with each other.

It is given as a nasal spray and leaves white blood cells in our lungs – called macrophages – on "amber alert" and ready to jump into action no matter what infection tries to get in.

The effect lasted for around three months in animal experiments.

[–] Semi_Hemi_Demigod@lemmy.world 26 points 1 day ago (3 children)

I’d be really worried about autoimmune reactions. I swear there’s been a few Trek episodes where some kind of universal vaccine has unintended consequences.

[–] daychilde@lemmy.world 10 points 1 day ago

I'm not sure I'd put any truck into fictional sci-fi where everything needs a good story, so any positive needs a negative…

…but I get it. And yeah, it's a worry.

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