Microneedle patches: Usability and acceptability for self-vaccination against influenza

- First-in-humans study of microneedle patch usability and acceptability.
- Users can correctly apply microneedle patches.
- A snap-based device providing force feedback to users improved usability.
- Microneedle patches increased intent to vaccinate from 44% to 65%.
- 64% of participants intending vaccination would prefer to self-vaccinate.