CDC Travelers' Health (National Center for Infectious Diseases)
The National Center for Infectious Diseases (NCID), a Center within the Centers for Disease Control (CDC), provides information on diseases, outbreaks, vaccinations and other topics of importance to travelers of all types and ages.

MayoClinic.com: Infectious Disease: International travel: Staying healthy far from home
This article from the MayoClinic.com web site discusses potential risks to global travel, along with preventive measures, commmon sense considerations, and other concerns.

DISCLAIMER: The medical information provided is for educational purposes only. It is not intended or implied to be a substitute for professional medical advice. Always consult your physician or health care provider prior to starting any new treatment or with any questions you may have regarding a medical condition.