Trafic international et santé
WHO International Travel and Health
http://www.who.int/ith/en/index.html
WHO 'International travel and health 2010 edition'
http://www.who.int/ith/chapters/en/index.html
Links to National Travel and Health Websites
http://www.who.int/ith/links/national_links/en/index.html
CDC Travelers' Health
http://wwwnc.cdc.gov/travel/
CDC Travelers' Health - Yellow Book 2010
http://wwwnc.cdc.gov/travel/content/yellowbook/home-2010.aspx