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Serologic analysis of returned travelers with fever, Sweden
Helena H Askling1, Birgitta Lesko, Sirkka Vene
1Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE17176 Stockholm, Sweden. helena.hervius-askling@karolinska.se
Emerging Infectious Diseases
|November 7, 2009
Abstract:
We studied 1,432 febrile travelers from Sweden who had returned from malaria-endemic areas during March 2005-March 2008. In 383 patients, paired serum samples were blindly analyzed for influenza and 7 other agents. For 21% of 115 patients with fever of unknown origin, serologic analysis showed that influenza was the major cause.
