Interested in a free trip to Mexico or Guatemala?

Times are tough for doctors, so there is no question I'd sign up to be a control in this vaccine study.  If you're willing to be a guinea pig, they'll give you a trip to Mexico or Guatemala if you put their vaccine patch on that might protect you against travelers diarrhea.  Adverse side effects?  They don't know--that's why they're doing the study.  Send me a postcard.