•United Nations
•World Health Organization
•IFRC
•Centers for Disease Control and Prevention
•European Centers for Disease Control and Prevention
•Doctors Without Borders
•International Society of Travel Medicine
•World Travel Guide
•Unicef
•Rheumatology Online Clinic
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•Photos of major diseases regarding travelling
•Health conditions in more than 130 countries
•The necessity for vaccination in international trips
•General guidelines to get ready for international trips
•Different travelling diseases and ways to prevent them