Effective vaccines, without a needle: Since the start of the Covid pandemic, researchers have doubled down on efforts to create patches that deliver life-saving drugs painlessly to the skin, a development that could revolutionize medicine.
The technique could help save children's tears at doctors' offices, and help people who have a phobia of syringes.
Beyond that, skin patches could assist with distribution efforts, because they don't have cold-chain requirements and might even heighten vaccine efficacy.