The CDC's Travelers' Health Web site provides health information for the traveler. The Web site provides information on immunizations that are needed for travel to various areas of the world. It also provides information for safe travel, including traveling with children and people with special needs. Information about current outbreaks of disease in the world is also provided. The CDC is the leading federal agency for protecting U.S. citizens' health and safety by providing credible health information and health promotion.

The World Health Organization (WHO), a specialized agency of the United Nations, has 192 member states. WHO promotes technical cooperation among nations on health issues, carries out programs to control and eliminate disease, and strives to improve the quality of human life. The Web site has information on many health topics and on travelers' health.