CDC Travel Information Page
The Center for Disease Control (CDC) provides extensive health related information for the world traveler including vaccination and other health recommendations by geographic area as well as the latest in disease outbreaks worldwide.

Health and Safety TravelTips for Business & Pleasure
International health and safety TravelTips, TravelBriefs, and in-depth articles offering advice and timely travel health and safety information for the world traveler.

US State Department Travel Advisory
The US State Department, Bureau of Consular Affairs web site lists current travel warnings issues by the state department as well as more in depth information on such topics as passport information and international adoption.

Health Canada Information for Travelers
Health warnings and travel-health advice from the Canadian government.

MedExplorer
Free, comprehensive medical and health related search engine/micro-portal with no membership or registration requirements. Utilized by healthcare professionals as well as consumers.