Health information regarding specific destinations, recommended vaccinations, help for special needs travelers, traveling with children. From the CDC.

Offers advice, articles, current health alerts, clinic locator and vaccination information. Includes fact sheets designed to alert travelers of health issues specific to different regions.

Offers medical information designed to assist practitioners and travelers around the globe. Addresses special needs, infectious disease, and necessary documents. Requires free user registration.

Lists health risks and services. Covers diseases, illness prevention, special needs and travel health clinics.

A nonprofit organization devoted to researching health effects of traveling by plane. It focuses on deep vein thrombosis, offering news items, research summaries, prevention tips.