The Saturday edition of the Wall Street Journal (a wonderful addition to my reading) includes an article on vaccinations required for travel to exotic foreign locales (warning – subscription wall). The article recommends that a traveler check a U.S. Centers for Disease Control website for required or recommended vaccinations and then check out their health plan coverage for those immunizations (FEHB plans generally provide good vaccination coverage.) The article also provides consumer tips on how to negotiate vaccination charges with the provider, e.g., group discounts at nurse practitioner travel clinics. I googled travel clinics and found several in DC, which I guess is not surprising.