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 mixture to the skin of mice and exposed it to ultrasound – like that used for sonograms – for about a minute and a half.
It could be that if vaccines can be attached to a “cup-like protein” and given through the skin, than maybe insulin could too. Just less needle sticks overall
OHHHHHHH. Jeez it took me way too long for this to click. Thanks!