Iranians are all over virosomes & the Indians Hasan Samiee https://ir.linkedin.com/in/hasan-samiee-193584a0?challengeId=AQHzmxWDEdVr-wAAAX7BTWf1fU_kSDSh-6p-qdXGntFs7Je-tBSPVnx9j1cZHzSn50s1gXvCCGS3zRu2LNovs0SIAsNiLuig_Q&submissionId=f707144f-0f61-d016-05e4-36d3d98f5d70 The respiratory mucosal surface acts as a primary immune defense barrier, and is the main site of influenza virus infection. Many studies have shown that mucosal vaccines could be used to induce both a systemic and a local mucosal immune response https://www.frontiersin.org/articles/10.3389/fcimb.2021.643953/full for a long time now Reconstruction of H3N2 influenza virus based virosome in-vitro https://pubmed.ncbi.nlm.nih.gov/23825736/ Virus-like particles: preparation, immunogenicity and their roles as nanovaccines and drug nanocarriers https://jnanobiotechnology.biomedcentral.com/articles/10.1186/s12951-021-00806-7