First report of Spirocerca sp. in Denmark – a tumor-inducing parasite in carnivores

Mohammad Nafi Solaiman Al-Sabi, Mette Sif Hansen, Gitte Larsen, Elisabeth Holm, Mariann Chriél, Heidi L. Enemark

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

    Abstract

    During routine health surveillance of wild carnivores in Denmark, several tumors, measuring up to 3.0 x 4.5 x 2.5 cm, were detected in the stomach and the omentum of an autopsied red fox (Vulpes vulpes). The fox was hunted in the Hanstholm Nature Reserve, which is 230 km from the closest mainland borders. The tumors had a thick layer of fibrous tissue in which adult worms of Spirocerca sp. were detected. Despite egg excretion by female worms (identified by histology and examination of female worms), no eggs were detected in feces by sedimentation, floatation with saturated sugar solution or sieving. Partial sequencing of two segments of the mitochondrial cox1 gene revealed unique sequences that were distinct from known isolates of S. lupi from Europe, Asia and Africa. Phylogenetic analysis supported the later finding by grouping Danish isolates in one separate node which was distant from other nodes including S. lupi from other countries. It is not known whether this case was an autochthonous infection or whether it was introduced by migrating paratenic or definitive hosts. This is the first report of Spirocerca sp. in Denmark. Additional molecular and/or biological studies are warranted to further characterize the isolated Spirocerca species.
    Original languageEnglish
    Title of host publicationDSP - Joint Spring Symposium 2014 : Parasites in an ever changing world
    Number of pages1
    PublisherDanish Society for Parasitology
    Publication date2014
    Pages15
    Publication statusPublished - 2014
    EventJoint Spring Symposium 2014 : Danish Society for Parasitology and Danish Society for Tropical Medicine & International Health - Frederiksberg, Denmark
    Duration: 28 Mar 2014 → …
    http://parasitology.dk/web/pages/dsp-meetings/spring-symposium.php

    Conference

    ConferenceJoint Spring Symposium 2014 : Danish Society for Parasitology and Danish Society for Tropical Medicine & International Health
    CountryDenmark
    CityFrederiksberg
    Period28/03/2014 → …
    Internet address

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