>>Talimogene Laherparepvec The first name relates to the gene mode of action: Ta-limo-gene Ta - made-up prefix lim(o) - immunomodulator gene - gene The surname tells you what the virus is and how it replicates: La-herpa-repvec La - made-up prefix herpa - herpes virus repvec - replicating viral vector Not pretty, but it means that you can tell a lot from just the name. Peter