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Volume 15, Number 11—November 2009

Dispatch

Serologic Analysis of Returned Travelers with Fever, Sweden

Helena H. Askling1Comments to Author , Birgitta Lesko1, Sirkka Vene, Angerd Berndtson, Per Björkman, Jonas Bläckberg, Ulf Bronner, Per Follin, Urban Hellgren, Maria Palmerus, Karl Ekdahl, Anders Tegnell, and Johan Struwe
Author affiliations: Karolinska Institute, Stockholm, Sweden (H.H. Askling, K. Ekdahl); Karolinska University Hospital, Stockholm (H.H. Askling, U. Bronner, U. Hellgren); Swedish National Board of Health and Welfare, Stockholm (B. Lesko, A. Tegnell); Swedish Institute for Infectious Disease Control, Stockholm (B. Lesko, S. Vene, A. Berndtson, J. Struwe); Malmö University Hospital, Malmö, Sweden (P. Björkman); Lund University Hospital, Lund, Sweden (J. Bläckberg); Linköping University Hospital, Linköping, Sweden (P. Follin); County Hospital Ryhov, Jönköping, Sweden (M. Palmerus); European Centre for Disease Prevention and Control, Stockholm (K. Ekdahl)

Main Article

Table 2

Final diagnosis of febrile travelers returning from tropical countries, Sweden, March 2005–March 2008*

Final diagnosis Additional serologic analysis, n = 383, no. (%) patients Routine investigations only, n = 1,049, no. (%) patients p value
Fever of unknown etiology 91 (24) 372 (35) <0.0001
Influenza 34 (9) 38 (4) <0.001
Dengue fever 17 (4) 27 (3) NS
Rickettsial infection 17 (4) 15 (1) <0.001
Leptospirosis 4 (1) 3 (0.2) NS
Q fever 3 (0.7) 0 0.004
Chikungunya fever 1 0 NS

*NS, not significant.

Main Article

1These authors contributed equally to this article.

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