Comment on Ultrasound can push vaccines into the body without needles

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Blue_Morpho@lemmy.world ⁨11⁩ ⁨months⁩ ago

Hyposprays already were invented, mass produced, used as standard in the military for several years, and abandoned because they weren’t as hygienic as needles.

Anything that pushes through the skin into the blood pushes pathogens in too. Statically, needles were safer so hyposprays were abandoned.

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