Incidence and Types of Illness When Traveling to the Tropics: A Prospective Controlled Study of Children and Their Parents

Catherine Newman-Klee Department of Pediatrics, University Hospital, Lausanne, Switzerland; Travel Clinic, Department of Ambulatory Care and Community Medicine, University of Lausanne, Switzerland; Swiss Tropical Institute, Basel, Switzerland

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Valérie D’Acremont Department of Pediatrics, University Hospital, Lausanne, Switzerland; Travel Clinic, Department of Ambulatory Care and Community Medicine, University of Lausanne, Switzerland; Swiss Tropical Institute, Basel, Switzerland

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Christopher J. Newman Department of Pediatrics, University Hospital, Lausanne, Switzerland; Travel Clinic, Department of Ambulatory Care and Community Medicine, University of Lausanne, Switzerland; Swiss Tropical Institute, Basel, Switzerland

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Mario Gehri Department of Pediatrics, University Hospital, Lausanne, Switzerland; Travel Clinic, Department of Ambulatory Care and Community Medicine, University of Lausanne, Switzerland; Swiss Tropical Institute, Basel, Switzerland

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Blaise Genton Department of Pediatrics, University Hospital, Lausanne, Switzerland; Travel Clinic, Department of Ambulatory Care and Community Medicine, University of Lausanne, Switzerland; Swiss Tropical Institute, Basel, Switzerland

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Increasingly, families travel to tropical destinations exposing them to infectious agents and tropical diseases not encountered at home. We studied 157 children (0–16 years) and their adult relatives traveling to the tropics, who attended a pretravel clinic and were generally adherent to prescribed advice. Incidence rates of common illness in children and adults were respectively 16.9 (14.3–19.7) and 15.1 (12.7–17.8) episodes/100 person-weeks. Diarrhea, abdominal pain, and fever were the most frequent complaints. There was no significant difference in the incidence of morbid episodes between children and adults, except for fever (more frequent in children). Most episodes occurred in the first 10 days of travel. The similar incidence of morbidity in children and adults and the episodes’ mildness challenge the view that it is unwise to travel with small children.

Author Notes

Reprint requests: Blaise Genton, Swiss Tropical Institute, Socinstrasse 57, 4002 Basel, Switzerland, E-mail: Blaise.genton@unibas.ch.
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