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Ultrasound can push vaccines into the body without needles
(www.newscientist.com)
This is a most excellent place for technology news and articles.
I know a person IRL that is morbidly afraid of needles, they would have a panic attack just seeing others getting poked. And apparently they have a self-help group somewhere, so they are definitely not alone.
Yeah, vaccine like these can definitely save their live.