Cell-Penetrating Peptides/administration & dosage; Mucous Membrane/metabolism; Nasal Mucosa/metabolism; Polymers/administration & dosage; Vaccines/administration & dosage; Acetamides/administration & dosage; Acetamides/chemistry; Acetamides/immunology; Acrylates/administration & dosage; Acrylates/chemistry; Acrylates/immunology; Adjuvants, Immunologic/administration & dosage; Adjuvants, Immunologic/chemistry; Administration, Intranasal/methods; Animals; Antibody Formation/immunology; Antigens/administration & dosage; Antigens/chemistry; Antigens/immunology; Cell-Penetrating Peptides/chemistry; Cell-Penetrating Peptides/immunology; Cholera Toxin/immunology; Drug Carriers/administration & dosage; Drug Carriers/chemistry; Drug Delivery Systems/methods; Epithelial Cells/drug effects; Epithelial Cells/immunology; Epithelial Cells/metabolism; Female; Immunity, Humoral/immunology; Immunoglobulin A, Secretory/immunology; Immunoglobulin G/immunology; Influenza Vaccines/administration & dosage; Influenza Vaccines/chemistry; Influenza Vaccines/immunology; Mice; Mice, Inbred BALB C; Mucous Membrane/drug effects; Mucous Membrane/immunology; Nasal Mucosa/drug effects; Nasal Mucosa/immunology; Ovalbumin/immunology; Pharmaceutical Solutions/administration & dosage; Pharmaceutical Solutions/chemistry; Polymers/chemistry; Polyvinyls/administration & dosage; Polyvinyls/chemistry; Vaccination/methods; Vaccines/chemistry