Comment on Ultrasound can push vaccines into the body without needles

firewyre@lemmy.world ⁨6⁩ ⁨months⁩ ago

• AlternateMrPapaya@lemmy.world ⁨6⁩ ⁨months⁩ ago

  Finally? They were used back in the 1970s. There were issues with them getting contaminated during use, so disposable needles became the norm.

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