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Ultrasound can push vaccines into the body without needles
(www.newscientist.com)
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this post was submitted on 05 Dec 2023
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Actual hyposprays have been around since the 60's. They are, by all account, quite painful and ironically not very hygienic.
https://en.m.wikipedia.org/wiki/Jet_injector
My favorite anecdote, though not necessarily mine, about jet inoculation comes from the army. They had long lines of men to immunize and little time to do it. Walk up, hold still, hear the click, feel the water pierce you, walk away sore. However, if anyone moved even slightly during the process, the needle of water becomes a knife, slicing their shoulder open. It was not a well thought out mechanism.
Who thought this was a good idea?
The 60s. They weren’t all there back then
Fallout is a documentary series.