& from one of the others which we have seen before
There is still insufficient data available on the fate of virosomes and liposomes administered to the respiratory tract, as most clinical trials administered virosomes either intramuscular or intradermal. Virosomes delivered intranasally provided protection against influenza that was comparable to the intramuscular application (36, 37). Additionally, virosomes provided both a systemic and mucosal immune response upon intranasal delivery of DNA as compared to the intradermal route of administration