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Worldworx Travel Travel Health: Reference Material

Reference Materials

For other important reference information, please see Vaccinations and the other sections of this site.

Frequently Requested Information

The Yellow Book The Yellow Book
Health Information for International Travel, 2001�2002
An in-depth travel reference book published biennially by CDC.

Visit the new Yellow Book site!
The Blue Sheet The Blue Sheet
Summary of Health Information for International Travel
List of the countries currently infected with quarantinable diseases (updated every two weeks). For more in-depth information, check the sections on Destinations, Diseases, and Outbreaks.
The Green Sheet The Green Sheet
CDC's inspection scores of specific cruise ships.
For more health advice on taking cruises, see the Cruise Ships section.
Other CDC Resources
  • MMWR Morbidity and Mortality Weekly Report
    A weekly CDC publication focusing on U.S. health topics, including current U.S. outbreaks.
  • EID Journal Emerging Infectious Diseases Journal
    A peer-reviewed journal, tracking trends and analyzing new and reemerging infectious disease issues around the world.
  • Health Topics A to Z
    Fact sheets, disease prevention and health information from A to Z.
  • Division of Global Migration and Quarantine
    Provides information on issues such as the medical examination of aliens (immigrants and refugees) and the importation of animals, including pets.
  • National Center for Infectious Diseases
Sites Outside the CDCDisclaimer
Health Information
  • World Health Organization (WHO)
    Includes the WHO International Travel and Health Page, WHO Disease Outbreak News, and the WHO Weekly Epidemiological Record.
  • Pan American Health Organization (PAHO)
    Important health information on countries in the Western Hemisphere.
  • Health Canada
    Includes the Laboratory Centre for Disease Control (LCDC) and the Travel Medicine Program, which provides information for both Canadian travelers and travel medicine professionals.
  • Public Health Laboratory Service (PHLS)
  • International Society of Travel Medicine (ISTM)
  • American Society of Tropical Medicine and Hygiene (ASTMH)
  • Other Sites Recommended by CDC
    CDC information networks, public health partners, state and local health departments, and web resources.
Nonmedical Information
Civil unrest, crime, natural disasters, etc.
  • U.S. State Department Travel Page
    Provides Passport Services as well as Travel Warnings and Consular Information Sheets for specific countries.
  • CIA World Factbook
    Includes geographic, political, economic, and demographic information on specific countries.
  • U.S. Customs Traveler Information Page
    Find out what items you are allowed to take across borders.
  • International Aviation Safety Assessment (IASA) Home Page
    (Part of the Federal Aviation Administration [FAA])
    Information on the safety of flying in other countries.



Note: CDC is not responsible for the content of Web pages found at these links. Links to nonfederal organizations are provided solely as a service to our users. These links do not indicate an endorsement of these organizations by CDC or the federal government.


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