Method for increasing successful influenza vaccine according microneedle device and a microneedle device

Providing immunogenicity enhancing method according to microneedle devices to enhance the immunogenicity of influenza vaccine. Immunogenicity enhancing method according to the microneedle device comprises a microneedle made of type A (H1N1) strain, polylactic acid coated with type A (H3N2) influenza vaccine consisting of antigen of strain and B strain of the active ingredient the microneedle device for transdermal administration of abutting the influenza vaccine into the skin. The microneedle device coated lauryl alcohol in contact with portions on the skin after transdermal administration.