students a vaccine that's only used overseas. >> if i were a parent, i would be very interested in getting the information and generally accepting and if i were around that table with the board of trustees, i would be gently encouraging them to do this. >> reporter: there's no vaccine in the united states, but given the outbreak of the rare stain ton campus, the cdc is approved to import the vaccine. >> if this vaccine was brought to the campus, would you encourage your son to take it? >> reporter: i think i would tell him to take it, but i'm not sure, because i'm not sure of the drawbacks. >> reporter: princeton's first case of meningitis "b" was diagnosed back in march when a student returned from spring break. the seventh case was diagnosed last week. the possibility of a vaccine is what some students have been hoping for. if board members and university