• Krzysztof Korzeniewski, Bartłomiej Gaweł, Dagny Krankowska, and Katarzyna Wasilczuk.
• Department of Epidemiology and Tropical Medicine in Gdynia, Military Institute of Medicine, Warsaw, Poland. kktropmed@wp.pl.
• Int Marit Health. 2015 Jan 1; 66 (2): 77-83.

AbstractThe aim of the article is to discuss issues associated with the occurrence of febrile illnesses in leisure and business travellers, with a particular emphasis on fevers of unknown origin (FUO). FUO, apart from diarrhoeas, respiratory tract infections and skin lesions, are one of the most common health problems in travellers to tropical and subtropical countries. FUO are manifestations of various diseases, typically of infectious or invasive aetiology. In one out of 3 cases, the cause of a fever in travellers returning from the hot climate zone is malaria, and therefore diagnostic tests should first aim at ruling out this specific disease entity. Other illnesses with persistent fever include dengue, enteric fever, viral hepatitis A, bacterial diarrhoeas and rickettsioses. Fever may also occur in travellers suffering from diseases of non-tropical origin, e.g. cosmopolitan respiratory tract or urinary tract infections, also, fever may coexist with other illnesses or injuries (skin rashes, bites, burns).

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