minus-squareAlternateMrPapaya@lemmy.worldtoTechnology@lemmy.world•Ultrasound can push vaccines into the body without needleslinkfedilinkEnglisharrow-up2arrow-down1·11 months agoFinally? They were used back in the 1970s. There were issues with them getting contaminated during use, so disposable needles became the norm. linkfedilink
Finally? They were used back in the 1970s. There were issues with them getting contaminated during use, so disposable needles became the norm.