Intradermal vaccine delivery allows to effectively target the immune cells in the dermis and epidermis. This could enhance the efficacy of vaccines and may potentially result in a significant dose sparing compared to intramuscular injection. Microneedle delivery is minimally invasive and pain-free for the patient. Our micro-needle arrays, incorporated into a patch and applied by a simple insertion device makes the administration safe and easy to use. It allows for self-administration by the patient. Self-administration -in the patient’s home environment- leads to better patient convenience and lower overall costs.