Viable Schistosoma mansoni infection 41 years after last exposure—a case report of a loyal parasite

Staehelin, Cornelia, Eichenberger, Anna, Mookhoek, Aart, Hoepner, Robert, Münger, Claudia, Sidler, Nadine, Wammes, Linda J., Nickel, Beatrice, Concu, Maura, Neumayr, Andreas, and Oberli, Alexander (2025) Viable Schistosoma mansoni infection 41 years after last exposure—a case report of a loyal parasite. Journal of Travel Medicine, 32 (8). taaf103. pp. 1-3.

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Abstract

Highlight: Schistosoma species may show extraordinary longevity, despite not replicating in human hosts. We present a case of active Schistosoma mansoni infection in a Swiss patient 41 years after her one and only possible exposure (swimming in Lake Kivu, Rwanda).

Item ID: 90602
Item Type: Article (Case Study)
ISSN: 1708-8305
Keywords: chronic hepato-splenic schistosomiasis, chronic intestinal schistosomiasis, longevity, Schistosoma mansoni, traveller
Copyright Information: © The Author(s) 2025. Published by Oxford University Press on behalf of the International Society of Travel Medicine. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.
Date Deposited: 31 Jul 2026 00:34
FoR Codes: 42 HEALTH SCIENCES > 4299 Other health sciences > 429999 Other health sciences not elsewhere classified @ 100%
SEO Codes: 20 HEALTH > 2001 Clinical health > 200101 Diagnosis of human diseases and conditions @ 50%
20 HEALTH > 2005 Specific population health (excl. Indigenous health) > 200599 Specific population health (excl. Indigenous health) not elsewhere classified @ 50%
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