Differences in Clinical Manifestations of Imported versus Autochthonous Leptospirosis in Austria and Germany

Bodo Hoffmeister Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Gabriele Peyerl-Hoffmann Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Sven Pischke Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Ines Zollner-Schwetz Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Robert Krause Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Matthias C. Müller Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Angelika Graf Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Stefan Kluge Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Gerd D. Burchard Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Winfried V. Kern Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Norbert Suttorp Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Jakob P. Cramer Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany; Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany; Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany; Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany; Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany; Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany

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Leptospirosis, a zoonosis occurring worldwide, has a broad spectrum of clinical manifestations. Recently, various countries observed an increase of severe anicteric cases. In Austria and Germany, growing numbers of imported cases are notified in addition to autochthonous infections. The aim of this study was to assess whether imported and autochthonous cases differ in clinical manifestations and outcome. We retrospectively analyzed 24 imported and 35 autochthonous cases treated in six infectious disease units between 1998 and 2008. To compare disease severity, patients were classified according to established independent risk factors for fatal outcome. Although severe leptospirosis (i.e., presence of ≥ 1 independent risk factors for death) occurred in similar proportions of imported (67%) and autochthonous (86%) infections (P = 0.1), imported cases were significantly fewer icteric (13% versus 69%; P < 0.0001). In conclusion, an increasing incidence of severe anicteric imported cases of leptospirosis should be anticipated with rising global travel activities.

Author Notes

*Address correspondence to Bodo Hoffmeister, Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Augustenburger Platz 1, 13353 Berlin, Germany. E-mail: b.hoffmeister-infekt@charite.de

Authors' addresses: Bodo Hoffmeister and Norbert Suttorp, Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Berlin, Germany, E-mails: b.hoffmeister-infekt@charite.de and norbert.suttorp@charite.de. Gabriele Peyerl-Hoffmann and Winfried V. Kern, Center for Infectious Diseases and Travel Medicine, Department of Medicine, University Hospital Freiburg, Freiburg, Germany, E-mails: gabriele.peyerl-hoffmann@uniklinik-freiburg.de and kern@if-freiburg.de. Sven Pischke, Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany, E-mail: pischke.sven@mh-hannover.de. Ines Zollner-Schwetz and Robert Krause, Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria, E-mails: ines.schwetz@meduni-graz.at and robert.krause@medunigraz.at. Matthias C. Müller, Department of Infectious Diseases and Tropical Medicine, Ludwig-Maximilians University of Munich, Munich and Department of Infectious Diseases, Medizinische Poliklinik, Ludwig-Maximilians University of Munich, Munich, Germany, E-mail: matthias.mueller@med.uni-muenchen.de. Angelika Graf, Department of Anaesthesiology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany, E-mail: angelika.graf@charite.de. Stefan Kluge, Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Germany, E-mail: s.kluge@uke.de. Gerd D. Burchard and Jakob P. Cramer, Section Tropical Medicine, Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany and Section Tropical Medicine/Clinical Research, Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany, E-mails: gerd.burchard@bni-hamburg.de and cramer@bni-hamburg.de.

Reprint requests: Bodo Hoffmeister, Department of Infectious Diseases and Pulmonology, Charité University Medicine Berlin, Augustenburger Platz 1, 13353 Berlin, Germany, Tel: +49-30-450653389, Fax: +49-30-450553958, E-mail: b.hoffmeister-infekt@charite.de.

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