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Cross-posted from : https://lemmy.ml/post/16566616...
Ultrasound can push vaccines into the body without needles (www.newscientist.com)
Vaccines can be delivered through the skin using ultrasound. This method doesn’t damage the skin and eliminates the need for painful needles. To create a needle-free vaccine, Darcy Dunn-Lawless at the University of Oxford and his colleagues mixed vaccine molecules with tiny, cup-shaped proteins. They then applied liquid...