Health information on the Travel Health Resource® website is based on information from the following authoritative sources:

1. CDC - Centers for Disease Control and Prevention
2. "Yellow Book" - Health Information for International Travel 2008
3. WHO - World Health Organization - International Travel and Health 2008
4. PAHO - Pan American Health Organization
5. DOS - United States Department of State
6. ACIP - Advisory Committee of Immunization Practices
7. AAP - American Academy of Pediatrics
8. Public Health Agency of Canada

These resources are reviewed on a continuing basis for accurate and up to date information. As a result, the website remains current and comprehensive.