A variety of different types of nasal vaccine systems have been described including cholera toxin, microspheres, nanoparticles, liposomes, attenuated virus, and outer membrane proteins (proteosomes). The present invention is directed toward a novel nasal vaccine composition that utilizes the cationic...http://www.google.es/patents/US6391318?utm_source=gb-gplus-sharePatente US6391318 - Vaccine compositions including chitosan for intranasal administration and use thereof
Vaccine compositions including chitosan for intranasal administration and ...