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Ultrasound can push vaccines into the body without needles

Ultrasound can be used to send vaccine molecules through the skin Andrey Zhernovoy/Shutterstock 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,…

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