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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.
Also stops a lot of medical waste
The needle or the ultrasound, seems like the prick might be less waste
I don't think there would be any need to dispose of any part of the ultrasound system; perhaps a disposable paper or plastic cover to speed up cleaning between patients. Meanwhile the needles are single use and must be disposed of properly since they are a bio-hazard. Can't really see how a needle could possibly compete on the waste side of things.
Yeah, maybe he was talking about something else because it's hard to see what would be worse than used needles.
How?