Travellers' Health CDC Website http://wwwnc.cdc.gov/travel/
Travel Medicine Overview http://www.medicinenet.com/travel_medicine/article.htm
Travel Medicine: Helping Patients Prepare for Trips Abroad http://www.aafp.org/afp/1998/0801/p383.html#afp19980801p383-t12
Travel Supplies https://travmed.com/
Immunization Information https://immunize.org
CDC Vaccine Information http://www.cdc.gov/vaccines/
State Department International Travel Conditions http://travel.state.gov/travel/